Joel is the founder of the Photo Ark, a groundbreaking effort to document species before they disappear—and to get people to care while there’s still time.

Explore the Photo Ark

Search the 39,878-picture Photo Ark for an animal or species. Scroll down to see every species in the Ark … if you’ve got all day.

  • 12,138 species in Photo Ark as of today
    Explore the Photo Ark Search the [photoark_count]-picture Photo Ark for an animal or species.
  • 25 years to document every species in human care
  • Photo: An Alabama crayfish (Faxonius alabamensis) collected from Indian Creek, Tennessee, by the West Liberty University Crayfish Conservation Lab.
  • Photo: Brazil poison frog (Ranitomeya vanzolinii) from a private collection.
  • Picture of a pink sponge, Darwinella mulleri, at Pure Aquariums from the Gulf Specimen Marine Lab.
  • A federally endangered Karner blue butterfly (Lycaeides melissa samuelis) at the Toledo Zoological Gardens.
  • A juvenile red rat snake (Elaphe guttata) at the Archbold Biological Station.
  • Photo: A Yunnan bamboo pitviper (Trimeresurus yunnanensis) from a private collection.
  • Photo: An inland bearded dragon (Pogona vitticeps) at the Kansas City Zoo.
  • An endangered Rio Azuela glass frog (Hyalinobatrachium pellucidum) collected near Pilalo, Ecuador.
  • Picture of a double-barred finch (Taeniopygia bichenovii) at Healesville Sanctuary.
  • Photo: A klipspringer (Oreotragus stevensoni) at the ABQ BioPark.
  • Pickerel frog (Lithobates palustris) at the National Aquarium in Baltimore.
  • Picture of a vulnerable Tucuman amazon (Amazona tucumana) at the Central Florida Zoo.
  • Baron's green racer (Philodryas baroni) at the Woodland Park Zoo.
  • A Sonoran desert toad (Incilius alvarius) at the Tulsa Zoo.
  • Picture of a snow goose (Chen caerulescens) in blue phase.
  • A swamp darter (Etheostoma fusiforme) at Conservation Fisheries, a native stream fish breeding center in Knoxville. This fish is common and widespread in the southeastern U.S.
  • Fischer's chameleon (Kinyongia fischeri) at the Omaha Zoo.
  • Photo: A northern grasshopper mouse (Onychomys leucogaster articeps) photographed at Platte River Prairies, Woodriver, Nebraska.
  • A female Tennessee warbler (Oreothlypis peregrina) at the Wildlife Rehab Center of Minnesota.
  • A bull trout (Salvelinus confluentus) from Bighorn Creek, part of the Kootenay River system. (IUCN: Vulnerable; US: Federally threatened)
  • Photo: African flower chafer (Mecynorhina polyphemus) at the Insectarium in New Orleans.
  • Speckled padloper (Homopus signatus) at the Omaha Zoo.
  • Photo: A northern prairie skink (Plestiodon septentrionalis) collected in Jefferson County, Nebraska.
  • Photo: A Linda's treefrog (Hyloscirtus lindae) at Balsa de los Sapos.
  • Red-spotted toad (Anaxyrus punctatus) at the Arizona-Sonora Desert Museum.
  • Photo: A male turtle carapaced marsupial frog (Gastrotheca testudinea) at Centro Jambatu in Quito, Ecuador.
  • A splendid leaf frog (Cruziohyla sylviae) at the National Aquarium in Baltimore.
  • A giant panda (Ailuropoda melanoleuca) at Zoo Atlanta. This endangered (IUCN) and federally endangered species is native to China.
  • Photo: A male Himalayan blue sheep (Pseudois nayaur nayaur) at Padmaja Naidu Himalayan Zoological Park in Darjeeling, India.
  • Photo: An Eastern redbelly turtle (Pseudemys rubriventris) at the Estuarium in Dauphin Island, AL.
  • Photo: The Magdalena River turtle or Rio Magdalena river turtle (Podocnemis lewyana) at Cafam Zoo in Melgar, Colombia.
  • Photo: A double-collared seedeater (Sporophila caerulescens yungae) at Museo De Historia Natural Alcide d'Orbigny, a natural history museum and rare amphibian breeding center in Chocabamba Bolivia.
  • Photo: A two-month-old Venezuelan red howler monkey (Alouatta seniculus juara) at Cetas-IBAMA, a wildlife rehab center in Manaus, Brazil.
  • Picture of a painted tunicate (Clavelina picta) at Gulf Specimen Marine Lab and Aquarium.
  • Crested coua (Coua cristata) at the Omaha Zoo.
  • Photo: Oriole blackbird (Gymnomystax mexicanus) at the National Aviary of Colombia (Aviario Nacional de Colombia).
  • An Indochinese gaur (Bos gaurus readei) at Phnom Tamao Wildlife Rescue Center - Wildlife Alliance in Cambodia.
  • Photo: An endangered june sucker (Chasmistes liorus) at the Loveland Living Planet Aquarium in Draper, UT.
  • Photo: Five Greater Bermuda land snails (Poecilozonites bermudensis) at the Zoological Society of London.
  • A doctorfish tang (Acanthurus chirurgus) at the Denver Zoo.
  • Picture of a harlequin poison frog (Oophaga histrionica) Anchicaya River, Colombia locality, from a private collection.
  • Photo: An Australian masked owl (Tyto novaehollandiae), from a Private Collection in Australia.
  • Picture of a shadowbass (Ambloplites ariommus) at the US Geological Survey Southeast Science Center.
  • Photo: A western pygmy rattlesnake (Sistrurus miliarius streckeri) at the Pontotoc Ridge Preserve near Connerville, OK.
  • Picture of a chain catshark (Scyliorhinus retifer) at Omaha's Henry Doorly Zoo and Aquarium.
  • Photo: Spectacled parrotlet (Forpus conspicillatus) at Piscilago.
  • Photo: Giant slippery frog (Conraua robusta) collected near Manjo, Cameroon.
  • Photo: An olivaceous monitor (Varanus olivaceus) at Avilon Zoo. The world's first breeding of this species was achieved at this zoo.
  • A federally endangered Karner blue butterfly, Lycaeides melissa samuelis, emerges from pupae.
  • Photo: Slant-faced grasshopper (Mermiria bivittata) at Cedar Point Biological Station.
  • Photo: A black wildebeest or White-tailed gnu (Connochaetes gnou) at the Singapore Zoo.
  • Photo: A Madrean alligator lizard (Elgaria kingii nobolis) at the Phoenix Zoo.
  • Picture of an Egyptian cobra (Naja haje) at the Dallas Zoo. This is an undescribed subspecies from northern Africa.
  • Photo: A European hare (Lepus europaeus) at Centro Fauna Selvatica "Il Pettirosso".
  • Photo: An Alabama shiner (Cyprinella callistia) taken from the Conasauga River near Conasauga, Tennessee.
  • Photo: A Woodhouse’s scrub jay (Aphelocoma woodhouseii suttoni) at Tracy Aviary in Salt Lake City, Utah.
  • Photo: Western lesser siren (Siren intermedia nettingi) at the Conservation Department of the San Antonio Zoo.
  • A giant leaf-tail gecko (Uroplatus fimbriatus) at the St. Louis Zoo, St. Louis, Missouri.
  • Picture of a Slate pencil urchin (Eucidaris tribuloides) at the Columbus Zoo.
  • Photo: A tarantula (Cyrtopholis flavostriatus) from a private collection.
  • Picture of a Rio Grande siren (Siren intermedia) at the San Antonio Zoo.
  • Photo: A tarantula (Phormingochilus everetti) from a private collection.
  • Photo: Sitatunga (Tragelaphus spekii) at the Madrid Zoo.
  • Photo: A fieryblack shiner (Cyprinella pyrrhomelas) collected from Berke County, NC and photographed at Conservation Fisheries.
  • Photo: A critically endangered (IUCN) and federally endangered Bali starling (Leucopsar rothschildi) at the Houston Zoo. This bird persists outside of captivity only because captive bred individuals have continued to be released into the wild.
  • Photo: An adult female Common Marmoset (Callithrix jacchus) named Liilu at the University of Nebraska, Omaha.
  • A studio portrait of a vulnerable (IUCN) male lesser prairie-chicken (Tympanuchus pallidicinctus) that was caught to be radio collared.
  • A Mississippi mud turtle (Kinosternon subrubrum hippocrepis) at the Conservancy of Southwest Florida.
  • Photo: A banded newt (Triturus vittatus) at the Tennessee Aquarium.
  • Photo: A male capercallie (Tetrao urogallus crassirostris) at Alpenzoo in Innsbruck, Austria.
  • A southern three-banded armadillo (Tolypeutes matacus) at the Lincoln Children's Zoo, Lincoln, Nebraska. (IUCN: Near Threatened)
  • A red salamander (Pseudotriton ruber) at Zoo Atlanta, Atlanta, Georgia.
  • Photo: Striped bass (Morone saxatilis) at Welaka National Fish Hatchery Aquarium.
  • Photo: Pacific boa (Candoia carinata) at the Wroclaw Zoo.
  • Photo: A Brazilian white-banded tarantula (Nhandu colloratovillosus) at the Safari Land Pet Store.
  • Photo: A giant fringe-limbed treefrog (Ecnomiohyla fimbrimembra) at Zoo Atlanta.
  • A common vampire bat (Desmodus rotundus) at the Buffalo Zoo, Buffalo, New York.
  • Photo: An Atlantic triton's trumpet (Charonia variegata) at the Akron Zoo.
  • Picture of a Sonoran mountain kingsnake (Lampropeltis pyromelana knoblochi) at the Caldwell Zoo in Tyler, Texas.
  • Photo: Rock anemone (Aiptasia pallida) at Gulf Specimen Marine Lab and Aquarium.
  • An endangered Malayan tiger, Panthera tigris jacksoni, at the Omaha Zoo.
  • Photo: Tuckasegee stream crayfish (Cambarus tuckasegee) from the wild.
  • Picture of an American great egret (Ardea alba egretta) at the Saint Louis Zoo.
  • Photo: A male Böhme's two-horned chameleon (Kinyongia boehmei) from a private collection in St. Augustine, Florida.
  • Photo: A bluehead chub (Nocomis leptocephalus) from a private collection in Knoxville, Tennessee.
  • Vulnerable (IUCN) and federally endangered mandrills (Mandrillus sphinx) at the Gladys Porter Zoo in Brownsville, TX.
  • Photo: Two extinct frog species, a Chiriqui harlequin frog (Atelopus chiriquiensis) and a splendid poison frog (Oophaga speciosa) at the Smithsonian Tropical Research Institute in Gamboa, Panama.
  • Photo: A Saint Thomas conure, Eupsittula pertinax chrysophrys, at the Talarak Foundation.
  • A critically endangered (IUCN) and federally endangered Philippine crocodile (Crocodylus mindorensis) at the Gladys Porter Zoo.
  • Photo: Snails at the Arizona Sonora Desert Museum in Tucson, AZ.
  • An endangered Caucasus viper (Vipera kaznakovi) at the St. Louis Zoo.
  • Photo: A male lesser nighthawk (Chordeiles acutipennis) at Rogers Wildlife Rehabilitation Center.
  • Photo: A moorish idol (Zanclus cornutus) at the Downtown Aquarium in Denver, Colorado.
  • Photo: Madagascar moon moth cocoon (Argema mittrei) at the Omaha Zoo.
  • Larval (grub) form of a scarab beetle known generally as a 'June bug', Osmoderma subplanata.
  • Photo: A water monitor (Varanus salvator salvator) at Parco Natura Viva in Bussolengo, Italy.
  • Photo: A male boat-tailed grackle (Quiscalus major major) at Rogers Wildlife Rehabilitation in Hutchins, TX.
  • Photo: A chestnut cowrie (Neobernaya spadicea) at SeaWorld San Diego.
  • A pair of South Georgia king penguins, Aptenodytes patagonicus patagonicus.
  • Indian blue peafowl (Pavo cristatus) at the Lincoln Children's Zoo.
  • Photo: Midday gerbil (Meriones meridanus nogaiorum) at the Moscow Zoo.
  • Photo: Boulenger's Madagascar frog (Gephyromantis boulengeri) wild caught in Andasibe, Madagascar.
  • Picture of a close up of a grey-necked wood rail (Aramides cajaneus) at the Omaha Zoo.
  • Photo: San Diego alligator lizard (Elgaria multicarinata webbii) at the Arizona-Sonora Desert Museum.
  • A West Usambara two-horned chameleon (Kinyongia multituberculata) at the Houston Zoo.
  • Picture of a vulnerable four-horned antelope (Tetracerus quadricornis) at the Assam State Zoo.
  • Photo: Giant red tail gourami (Osphronemus laticlavius) at L'aquarium tropical du palais de la Porte DorŽe.
  • Photo: A jewel cichlid (Hemichromis sp.) from a private collection.
  • A short-tailed weasel (Mustela erminea cicognanii) at the New York State Zoo.
  • Common logperch (Percina caprodes) at the Oklahoma City Zoo. This animal was collected in Barron Fork Creek in Cherokee County, Oklahoma.
  • A Bornean blood python (Python brongersmai) at Zoo Atlanta.
  • Photo: A pufferfish (Canthigaster bennetti) at Petra Aqua.
  • Photo: Slaty headed parakeet, Psittacula himalayana, at Loro Parque Fundacion.
  • Photo: A giant burrowing cockroach (Macropanesthia rhinoceros) at the Taronga Zoo.
  • Photo: An endangered crested capuchin named Milo (Sapajus robustus) at the Los Angeles Zoo.
  • Photo: A pygmy marbled newt (Triturus pygmaeus) at WWT Slimbridge in England.
  • Juvenile mink (Neovison vison).
  • Picture of a critically endangered Tabasara robber frog (Craugastor tabasarae) at El Valle Conservation Center.
  • Photo: River carpsucker (Carpiodes carpio) collected from the Rio Grande River near Albuquerque, New Mexico.
  • Photo: Question mark cockroach (Therea olegrandjeani) at the Budapest Zoo.
  • Photo: Mediterranean jelly or fried egg jellyfish (Cotylorhiza tuberculata) at Loro Parque's aquarium in Puerto de la Cruz, Tenerife, Spain
  • A giant hispanolian anole (Anolis ricordi) at the Omaha Zoo.
  • Photo: Golden winged parakeet, Brotogeris chrysoptera chrysoptera, at Loro Parque Fundacion.
  • Photo: A western ribbon snake (Thamnophis proximus proximus) from the Shawnee National Forest.
  • Photo: Fairy shrimp (Branchinecta mediospinosa) wild caught near Cheyenne Bottoms, Kansas.
  • A critically endangered (IUCN) and federally endangered Sumatran tiger (Panthera tigris sumatrae).
  • Photo: A white-tipped island pitviper (Trimeresurus insularis) at Taman Mini Indonesia Indah.
  • Photo: A female barbary stag or atlas deer (Cervus elaphus barbarus) at Tierpark Berlin.
  • Photo: Pyne's ground plum or Guthrie's ground-plum (Astragalus bibullatus), a federally endangered plant that exists only in a one-mile-square area outside of Nashville within the 'cedar glades' ecosystem.
  • Photo: Iberian barbel or Barbo-do-Norte (Luciobarbus bocagei) at the Environmental Education Center of the Ribeiras de Gaia.
  • Photo: A nimble spray crab (Percnon gibbesi) at Riverbanks Zoo and Garden.
  • An endangered Baird's tapir (Tapirus bairdii) at the Omaha Zoo.
  • Photo: Slate-colored seedeater (Sporophila schistacea) at the National Aviary of Colombia (Aviario Nacional de Colombia).
  • Photo: Two robust camel crickets (Udeopsylla robusta) the Audubon Insectarium, part of the Audubon Nature Institute.
  • Photo: An endangered humphead wrasse, Cheilinus undulatus, at the Dallas World Aquarium.
  • Picture of a western long tailed brush lizard (Urosaurus graciosus) at Springs Preserve.
  • Picture of a Bullock's Oriole (Icterus bullockii) at the Sulphur Creek Nature Center in Hayward, California.
  • A critically endangered Chinese giant salamander (Andrias davidianus) at Zoo Atlanta, Atlanta, Georgia.
  • Picture of a Northern diamondback terrapin (Malaclemys terrapin terrapin) at the Palm Beach Zoo.
  • Photo: A depression crayfish (Cambarus rusticiformis) at the West Liberty University Crayfish Conservation Lab in West Liberty, West Virginia.
  • Picture of a federally endangered, American alligator (Alligator mississippiensis) at the Kansas City Zoo.
  • Photo: A kaiser spotted newt (Neurergus kaiseri) from Conservation Fisheries.
  • Photo: Great horned baboon (Ceratogyrus marshalli) at Museum of Nature South Tyrol.
  • Picture of a white-crested kalij pheasant (Lophura leucomelanos hamiltoni) at Himalayan Nature Park in Kufri.
  • A southern three-banded armadillo (Tolypeutes matacus) at the Lincoln Children's Zoo, Lincoln, Nebraska. (IUCN: Near Threatened)
  • Mallard (Anas platyrhynchos) ducklings.
  • Photo: Ruivaco or Panjorca (Achondrostoma oligolepis) at the Environmental Education Center of the Ribeiras de Gaia, Miramar, Portugal.
  • Photo: A Kowari (Dasycercus byrnei) at the Plzen Zoo. This species is listed as vulnerable by IUCN.
  • Photo: An adult, male white-tailed titi (Callicebus discolor) at Zoologico de Quito.
  • Photo: Dark-eared frog (Hylarana cubitalis) at Wroclaw Zoo.
  • Photo: An Entre Rios tarantula (Grammostola iheringi) at Museum of Nature South Tyrol.
  • A giant panda (Ailuropoda melanoleuca) at Zoo Atlanta. This endangered (IUCN) and federally endangered species is native to China.
  • Photo: An arcuate horseshoe bat (Rhinolophus arcuatus) at the University of the Philippines.
  • A vulnerable robber frog (Pristimantis calcarulatus) near Mindo, Ecuador.
  • Picture of a male and female surf scoter (Melanitta perspicillata) at Patuxent Wildlife Research Center.
  • Photo: Indian wolves (Canis lupus pallipes) at the Singapore Zoo.
  • Photo: A male red-tailed black cockatoo (Calyptorhynchus banksii banksii) at Jurong Bird Park, of Wildlife Reserves Singapore.
  • Photo: Clark's spiny lizard (Sceloporus clarkii) at Liberty Wildlife.
  • Photo: A pale chanting goshawk (Melierax canorus) at North Somerset Bird of Prey Centre in England.
  • Critically endangered Roti Island snake-necked turtle (Chelodina mccordi) at the Toledo Zoo.
  • Photo: An endangered Guenther's leaf-tail gecko (Uroplatus guentheri) from a private collection.
  • Photo: A Sunda laughingthrush (Garrulax palliatus) at Taman Mini Indonesia Indah.
  • Photo: A grapevine looper (Eulithis sp.) from the wild near Lincoln, Nebraska.
  • Photo: A two-month old jaguar cub (Panthera onca) named Teiku being bottle fed at the Santo Domingo Zoo.
  • A European fire salamander, Salamandra salamandra salamandra.
  • Photo: An endangered Calamian deer (Hyelaphus calamianensis) at the LA Zoo.
  • Photo: A burnished saki monkey (Pithecia inusta) at Parque de las Leyendas in Lima, Peru.
  • Picture of a chukar partridge (Alectoris chukar) from a private collection.
  • Photo: Paintedhand mudbug (Cambarus polychromatus) from the wild.
  • Photo: A Rufous hornbill (Buceros hydrocorax mindanensis) at Jurong Bird Park.
  • Photo: Golden tree snake (Dendrelaphis punctulatus) at Moonlit Sanctuary
  • Photo: An Asian black bear (Ursus thibetanus) at Kamla Nehru Zoological Garden.
  • Photo: A northern sea robin (Prionotus carolinus) at the Maine State Aquarium in West Boothbay, ME.
  • A giant panda (Ailuropoda melanoleuca) at Zoo Atlanta. This endangered (IUCN) and federally endangered species is native to China.
  • Photo: A Peruvian pelican (Pelecanus thagus) at the Jurong Bird Park.
  • A critically endangered Celebes crested macaque (Macaca nigra) at Omaha's Henry Doorly Zoo and Aquarium.
  • Photo: A ivory tusk shell (Graptacme eborea) at Gulf Specimen in Panacea, Florida.
  • Photo: A Florida carpenter ant (Camponotus floridanus) at the Urban Entomology Lab at the University of Florida at Gainesville.
  • Green katydid (Arantia accrana) from Bioko Island, Equatorial Guinea.
  • A corn snake (Elaphe guttata) at the Riverside Zoo.
  • Photo: Cane beetle (Dermolepida alborhitum) at Crocolandia in the Philippines.
  • Photo: A Chinese zebra goby (Ptereleotris zebra) at Nebraska Aquatic Supply.
  • Picture of a vulnerable emperor tamarin (Saginus imperator) at the Riverside Zoo.
  • Picture of a common starling (Sturnus vulgaris vulgaris) in winter plumage at the Plzen Zoo in the Czech Republic.
  • Raggiana Bird-of-paradise (Paradisaea raggiana augustaevictoriae) at the Cincinnati Zoo.
  • Picture of a Pacific spiny lumpsucker (Eumicrotremus orbis) at the Monterey Bay Aquarium.
  • Photo: An unidentified gastropod from the wild in Cameroon.
  • Photo: Tanzanian tail-less whipscorpion (Damon diadema) at the Bugarium at the Albuquerque BioPark.
  • Photo: A swan goose (Anser cygnoides) at the Miller Park Zoo. This species is listed as vulnerable on the IUCN Red List.
  • Photo: A striped burrfish (Chilomycterus schoepfii) at the Virginia Aquarium.
  • Picture of a blue-margined ground beetle (Pasimachus marginatus) at the Dallas Zoo.
  • Critically endangered (IUCN) lemur leaf frogs (Hylomantis lemur), from the Panama, population, at Zoo Atlanta. This male and female frog are in amplexus, a state in which the male latches onto the female prior to egg laying and fertilization.
  • Photo: A modest day gecko (Phelsuma modesta leiogaster) at the Plzen Zoo.
  • A Malayan peacock softshell turtle (Dogania subplana) at Wroclaw Zoo.
  • North Australian snake-necked turtle (Chelodina rugosa) at the Omaha Zoo.
  • A yellow-collared macaw (Primolius auricollis) at Omaha's Henry Doorly Zoo and Aquarium.
  • An endangered Goodfellow's tree-kangaroo (Dendrolagus goodfellowi) at the Melbourne Zoo.
  • Photo: A Celebes cuscus (Strigocuscus celebensis) at Taman Safari.
  • Photo: Walking stick (Creoxylus spinosus) at the Budapest Zoo.
  • Picture of Johnny the serval (Leptailurus serval) at the Lincoln Children's Zoo.
  • Photo: Speckled sea trout (Cynoscion nebulosus) at Gulf Specimen Marine Lab and Aquarium.
  • Photo: Brazilian horned frog (Ceratophrys aurita) from a private collection.
  • Arizona treefrog (Hyla wrightorum) at the Arizona-Sonora Desert Museum.
  • A critically endangered (IUCN) and federally endangered Philippine crocodile (Crocodylus mindorensis) at the Gladys Porter Zoo.
  • Photo: South Philippines eagle-owl (Bubo philippensis mindanensis) at Crocolandia in the Philippines.
  • A Pacific treefrog (Pseudacris regilla) at the Fresno Chaffe Zoo.
  • A vulnerable Colombian night monkey (Aotus griseimembra) named “Cheeky” at the Houston Zoo.
  • A portrait of a marbled cat (Pardofelis marmorata marmorata).
  • Photo: 'Nyango', the only confirmed Cross River gorilla (Gorilla gorilla diehli) in captivity in the world.
  • Photo: A female Egyptian desert cockroach (Polyphaga aegyptiaca) at Prague Zoo.
  • Glass frog (Cochranella euknemos) at the National Aquarium in Baltimore.
  • Picture of an Abe's or red-spot pufferfish (Tetraodon abei) at the Newport Aquarium.
  • Photo: Central American banded gecko (Coleonyx mitratus) at the Nashville Zoo.
  • Photo: A South Andean deer (Hippocamelus bisulcus) at Fauna Andina, a conservation center near south-central Chile.
  • Photo: A gopher snake (Pituophis melanoleucus) at the Kansas City Zoo.
  • Photo: Crested mona monkey (Cercopithecus pogonias nigripes) named Amber at Park Assango, run by ONG Animal's World in Libreville, Gabon.
  • Picture of a vulnerable (IUCN) and federally threatened Atlantic loggerhead turtle (Caretta caretta) at Riverbanks Zoo.
  • A day-biting fly (Chrysops sp.), thought to carry the disease loa loa (Filariasis), from Bioko Island, Equatorial Guinea.
  • Photo: Chevron patter color morph of the Limosa harlequin frog (Atelopus limosus) at the Panama Amphibian Rescue and Conservation Project.
  • Photo: A creamy-bellied thrush (Turdus amaurochalinus) at Museo De Historia Natural Alcide d'Orbigny, a natural history museum and rare amphibian breeding center in Chocabamba Bolivia.
  • Photo: Opal, a production red chicken at the Soukup Farm.
  • Picture of an endangered white-tailed black cockatoo (Calyptorhynchus baudinii) at the Lowry Park Zoo.
  • Photo: A Pyrenees fire salamander (Salamandra salamandra fatuosa) at WWT Slimbridge in England.
  • A common raccoon (Procyon lotor).
  • Photo: An endangered golden lion tamarin (Leontopithecus rosalia) at the Lincoln Children’s Zoo.
  • Picture of a northwestern garter snake (Thamnophis sirtalis) at the Oregon Zoo.
  • A federally endangered snail kite (Rostrhamus sociabilis) at the Audubon Center for Birds of Prey, a rehab and education center.
  • A critically endangered Mississippi gopher frog (Lithobates sevosus) at Zoo Atlanta.
  • Picture of a snow goose (Chen caerulescens) in blue phase.
  • Photo: A lineated barbet (Megalaima lineata) at the Jurong Bird Park.
  • Photo: Warren's girdled lizard (Smaug warreni) at the Phoenix Zoo.
  • Picture of a red-legged seriema (Cariama cristata) at the Kansas City Zoo.
  • Picture of a giant keyhole limpet (Megathura crenulata) at the REEF, at the University of California, Santa Barbara.
  • Photo: A RuppellÕs parrot (Poicephalus rueppellii) at the Jurong Bird Park.
  • Picture of a vulnerable male lesser white-fronted goose (Anser erythropus) at Sylvan Heights Bird Park.
  • Photo: A Kawall’s amazon (Amazona kawalli) at Fundacao Jardim Zoologico de Brasilia.
  • A slender-legged treefrog (Osteocephalus species) near Limon, Ecuador.
  • A short-toed snake eagle (Circaetus gallicus gallicus) at Parque Biologico in Vila Nova de Gaia, Porto, Portugal.
  • Picture of a white-cheeked pintail (Anas bahamensis) at Sylvan Heights Bird Park.
  • Photo: A water frog (Telmatobius sp.) at Balsa de los Sapos.
  • Photo: A red and blue phase powder blue gourami (Colisa lalia) at the Fish Biodiversity Lab, Auburn University, Auburn, Alabama.
  • Photo: A male Brazilian three-banded armadillo (Tolypeutes tricinctus) at Fundacao Jardim Zoologico de Brasilia.
  • Orange-winged Amazon (Amazona amazonica amazonica) at Cafam Zoo in Melgar, Colombia.
  • A red shiner (Cyprinella lutrensis) at the Nebraska Game & Parks Commission, Nebraska.
  • Photo: A striped black crow (Euploea doubledayi) at Zoo Negara in Kuala Lumpur, Malaysia.
  • Photo: Jumping spider (Phintella sp.) at the Singapore Zoo.
  • Picture of a horned puffin (Fratercula corniculata) at the Monterey Bay Aquarium.
  • An eastern coachwhip (Masticophis flagellum flagellum) from a private collection.
  • Picture of an Australian ringneck (Barnardius zonarius) at the Budapest Zoo.
  • Photo: A tiny salamander (Bolitoglossa rufescens) at San Francisco State University.
  • Photo: An endangered yellow-headed temple turtle (Heosemys annandalii).
  • A power blue morph of the dying poison dart frog (Dendrobates tinctorius) from a private collection.
  • A studio portrait of a bush cicada (Megatibicen dorsatus), in Neale Woods, Nebraska.
  • Photo: A red serow (Capricornis rubidus) at the Assam State Zoo cum Botanical Garden.
  • A diamondback water snake (Nerodia rhombifer rhombifer) at the Tulsa Zoo.
  • Photo: Gigi, a two-week-old Japanese macaque (Macaca fuscata) at the Blank Park Zoo in Des Moines, IA. She is being hand-raised for the first couple months because her mom wouldn't nurse her.
  • Photo: A thick-billed green pigeon (Treron curvirostra) at Jurong Bird Park, part of Wildlife Reserves Singapore.
  • An African gray climbing mouse (Dendromus melanotis) from the Mt. Gorongosa in Mozambique, Africa.
  • Photo: A vulnerable stuttering or southern barred frog (Mixophyes balbus) at the Melbourne Zoo.
  • Photo: Elm sawfly (Cimbex americana) at the Trinity Western University.
  • Little red flying fox (Pteropus scapulatus) from the Australian Bat Clinic and Narrow Leaf Retreat.
  • Photo: A Western creek chubsucker (Erimyzon claviformis) at Conservation Fisheries in Knoxville, Tennessee.
  • A female ruffed grouse (Bonasa umbellus mediana) at the Wildlife Rehab Center of Minnesota.
  • Arizona treefrog (Hyla wrightorum) at the Arizona-Sonora Desert Museum.
  • A federally endangered Florida panther (Puma concolor coryi) named Lucy at Tampa's Lowry Park Zoo.
  • Picture of a diablito, also known as a little devil poison frog (Oophaga sylvatica) San Lorenzo, Ecuador locality, from a private collection.
  • Photo: Texas pimpleback mussel (Cyclonaias petrina) from the Crustacean and Molluskan Ecology Lab at Auburn University.
  • Photo: Palawan binturong (Arctictis binturong whitei) at the Nashville Zoo.
  • A five-week-old endangered golden conure (Guaruba guarouba) at the Sedgwick County Zoo, Wichita, Kansas.
  • A vulnerable female African elephant (Loxodonta africana) at the Cheyenne Mountain Zoo.
  • A Platte River caddisfly (Ironoquia plattensis) in its larval stage.
  • Photo: A tetra (Markiana nigripinnis) at the aquarium of the Manaus Zoo. This Zoo is ran by the military, or CIGS.
  • Photo: An endangered White River killfish, White River springfish (Crenichthys baileyi) at L'aquarium tropical du palais de la Porte DorŽe.
  • Photo: A mangrove tunicate (Ecteinascidia turbinata) at Gulf Specimen in Panacea, Florida.
  • Festive Amazon (Amazona bodini) at Parque Jaime Duque near Bogota, Colombia.
  • Photo: Rosyside dace (Clinostomus funduloides) at Conservation Fisheries.
  • A giant walking stick (Phobaeticus serratipes) at the Omaha Henry Doorly Zoo, Omaha, Nebraska.
  • Crowned iguana (Laemanctus serratus) from the Omaha Zoo.
  • Picture of a pink-speckled shrimpgoby (Cryptocentrus leptocephalus) at Pure Aquariums.
  • Cape Fear shiner (Notropis mekistocholas) a federally endangered species at a native stream fish breeding center. (IUCN: Endangered, US: Endangered)
  • Photo: A male elongate hatchetfish (Triportheus elongatus) at the Dallas World Aquarium.
  • A yellow-headed blackbird (Xanthocephalus xanthocephalus) at the Wildlife Center in Espanola, New Mexico.
  • Photo: A golden pheasant (Chrysolophus pictus) from a private collection.
  • An endangered Egyptian vulture (Neophron percnopterus percnopterus) at the Cleveland Metroparks Zoo.
  • Picture of an endangered female yellow-cheeked gibbon (Nomascus gabriellae) at the Singapore Zoo.
  • Photo: A northern water snake (Nerodia sipedon) from a private collection.
  • Photo: Heart crab (Phyllolithodes papillosus) at the Alaska SeaLife Center in Seward, AK.
  • Photo: Jardine parrot, Poicephalus gulielmi gulielmi, at Loro Parque Fundacion.
  • Photo: A Merrem's Madagascar swift, Oplurus cyclurus, at the Plzen Zoo.
  • Photo: Selangor betta (Betta livida) at Zoo Negara.
  • A squirrel tree frog (Hyla squirella) at the Vancouver Aquarium.
  • Picture of a female striped cowfish (Aracana aurita) at Omaha's Henry Doorly Zoo and Aquarium.
  • Photo: A mindo morph of the poison dart frog (Epipedobates darwinwallacei) at Centro Jambatu in Quito, Ecuador.
  • Photo: Walking sticks (Dares philippinensis) at the Budapest Zoo.
  • Picture of an endangered Persian leopard (Panthera pardus saxicolor) at the Budapest Zoo.
  • Photo: A female kelp goose (Chloephaga hybrida hybrida) at Lundi Farm in Verl, Germany.
  • A common vampire bat (Desmodus rotundus) at the Buffalo Zoo, Buffalo, New York.
  • The endangered (IUCN) and federally endangered Nashville crayfish (Orconectes shoupi). This animal has a very limited range, existing only in the Mill Creek watershed which runs from downtown Nashville to its suburbs. Habitat loss has restricted its range even further within Mill Creek, with more construction in recent years.
  • Photo: South European nase (Protochondrostoma genei) at Alpenzoo in Innsbruck, Austria.
  • Photo: A southern pocketbook (Lampsilis ornata) at the Alabama Aquatic Biodiversity Center in Marion, Alabama.
  • Photo: Bearded vulture (Gypaetus barbatus) at Parco Natura Viva.
  • Picture of a lanner falcon (Falco biarmicus) named Slider at the LA Zoo.
  • Photo: A brown wood owl (Strix leptogrammica maingayi) at Penang Bird Park.
  • A wild caught pygmy grasshopper (Hymenotes triangularis) from Mt. Makiling forest in Luzon, Philippines.
  • Photo: Virile crayfish (Faxonius virilis) at the Milford Nature Center.
  • Picture of a vulnerable Southern Lateste's viper or snub-nosed viper (Vipera latastei gaditana) at the St. Louis Zoo.
  • Photo: A fledgling European barn owl (Tyto alba guttata) from the Plzen Zoo in the Czech Republic.
  • Photo: Red rock crab (Cancer productus) at East Bay Regional Park District.
  • Photo: Vulnerable European wisent (Bison bonasus) at the Madrid Zoo.
  • Photo: A rock gunnel (Pholis gunnellus) at the Maine State Aquarium in West Boothbay, ME.
  • Photo: Southern redbelly dace (Chrosomus erythrogaster) at the Milford Nature Center.
  • Picture of a double-eyed fig parrot (Cyclopsitta diophthalma) at the Dallas Zoo. The bird's name is Figley.
  • Photo: A tree cactus (Pilosocereus bahamensis), an imperiled species found only in Key Largo.
  • Photo: A Espada's rocket frog (Hyloxalus pulchelus) at Balsa de los Sapos.
  • Photo: An endangered crested capuchin (Sapajus robustus) at the Los Angeles Zoo.
  • A blotched or banded tiger salamander (Ambystoma mavortium melanostictum) at the National Mississippi River Museum and Aquarium, Dubuque, Iowa.
  • Photo: European yellow-bellied toad (Bombina variegata) at the Moscow Zoo.
  • A vulnerable Sarasin’s giant gecko (Correlophus sarasinorum) at the St. Louis Zoo.
  • Photo: Soro brook carp (Neolissochilus soroides) at Zoo Negara.
  • Photo: A tiger longwing butterfly (Heliconius hecale) at the Omaha Zoo.
  • Coyote puppies (Canis latrans).
  • Photo: Romeo, a ten-year-old Sehuencas water frog (Telmatobius yuracare) at Museo d'Orbigny, a natural history museum and rare amphibian breeding center in Chocabamba Bolivia.
  • Photo: A golden-handed tamarin (Saguinus midas) at the Miller Park Zoo
  • Photo: Sudan golden sparrow (Passer luteus) in Choussy, France.
  • Endangered (IUCN) and federally endangered five-month-old mountain tapir (Tapirus pinchaque) at the Cali Zoo in Colombia.
  • Photo: A longnose gar (Lepisosteus osseus) at the Schramm Education Center near Gretna, NE.
  • Picture of a critically endangered painted terrapin (Batagur borneoensis) at the Detroit Zoo.
  • Photo: A green-cheeked, or red-crowned, Amazon parrot (Amazona viridigenalis) at the Kansas City Zoo.
  • Picture of a critically endangered baby spider tortoise (Pyxis arachnoides), a species from Madagascar, at Zoo Atlanta.
  • Picture of South African shelducks (Tadorna cana) at the Palm Beach Zoo. The male has the gray head.
  • Photo: Green oropendola (Psarocolius viridis) in Choussy, France.
  • An Atlantic horseshoe crab (Limulus polyphemus) that came in to spawn along the New Jersey shore’s Delaware Bay.
  • Photo: A Texas banded gecko (Coleonyx brevis) at Reptile Gardens.
  • Photo: An endangered South Philippine hawk-eagle (Nisaetus pinskeri) at Eltoro Zoo de la Castellana, Inc., on Negros Island, Philippines.
  • Photo: A female rufous hummingbird (Selasphorus rufus) at the Wildlife Center of New Mexico.
  • Photo: Rainbow shiners (Notropis chrosomus) in spawning colors, from a private collection in Knoxville, Tennessee.
  • Photo: Hawaiian monk seal (Neomonachus schauinslandi) at the Minnesota Zoo. All were photographed under the authority of NMFS MMPA/ESA Permit No. 17967-01.
  • Photo: A black mamba (Dendroaspis polylepis) at Reptile Gardens.
  • Picture of a sand cat (Felis margarita) named 'Sven' at the Chattanooga Zoo.
  • Picture of a long-toed lapwing (Vanellus crassirostris) at Sylvan Heights Bird Park.
  • Photo: A Buffon's turaco (Tauraco persa buffoni) at The Green Planet in Dubai, United Arab Emirates.
  • Photo: Walking stick (Orxines xiphias) from the Plzen Zoo in the Czech Republic.
  • Western hooded scaly-foot legless lizard (Pygopus nigriceps) at Lilydale High School in Australia.
  • Picture of a golden topminnow (Fundulus chrysotus) at the US Geological Survey Southeast Science Center.
  • Photo: Three female leopard geckos (Eublepharis macularius) at the Sunset Zoo in Manhattan, Kansas.
  • Photo: Colt coral (Cladiella sp.) at Butterfly Pavilion.
  • A northern double-collared sunbird (Cinnyris reichenowi preussi) in Bioko Island Equatorial Guinea.
  • Photo: Perez's frog (Pelophyllax perezi) at Graham's Quinta dos Malvedos Vineyard.
  • Photo: Male and female common scoters (Melanitta nigra) at Monticello Center in Italy.
  • Photo: West African giant land snail (Archachatina ventricosa) at the Toronto Zoo.
  • An Angolan fruit bat (Lissonycteris angolensis) from Bioko Island, Equatorial Guinea.
  • Photo: A female bubble-nesting fighting fish (Betta mahachaiensis) from a private collection in St. Augustine, Florida.
  • Photo: A Dirce beauty butterfly (Colobura dirce) at the Audubon Butterfly Garden and Insectarium in New Orleans, Louisiana.
  • Photo: An eastern blacknose dace (Rhinichthys atratulus) at the Center for Aquatic Mollusk Programs in Lake City, Minnesota.
  • A ringed map turtle, Graptemys oculifera, at the National Mississippi River Museum and Aquarium in Dubuque, IA. This species is listed as endangered (IUCN) and federally threatened.
  • A yellow-naped Amazon parrot (Amazona auropalliata auropalliata) at the Sedgwick County Zoo.
  • A juvenile skunk (Mephitis mephitis).
  • Photo: Critically endangered Devils Hole pupfish (Cyprinodon diabolis) at Ash Meadows National Wildlife Refuge.
  • Picture of a rainbow sea star (Orthasterias koehleri) at the Minnesota Zoo.
  • Picture of a female fringe-lipped bat, Trachops cirrhosus, at the Smithsonian Tropical Research Institute.
  • Delta map turtle (Graptemys nigrinoda delticola) at the Tennessee Aquarium.
  • Photo: A Florida black bear (Ursus americanus floridanus) named Cheyenne at the Brevard Zoo.
  • Photo: A helmeted guineafowl (Numida meleagris galeata) in Des Moines, Iowa.
  • A red-sided curly-tailed lizard (Leiocephalus schreibersii) at the Houston Zoo.
  • Photo: Texas patch-nosed snake (Salvadora grahamiae lineata) at the Phoenix Zoo.
  • Photo: A male emu named Sydney (Dromaius novaehollandiae) at Tracy Aviary in Salt Lake City, Utah.
  • A federally threatened federally threatened Northern spotted owl (Strix occidentalis caurina) named Opal.
  • Photo: A magpie robin (Copsychus saularis musicus) at Ragunan Zoo in Jakarta, Indonesia.
  • A cliff chipmunk (Tamias dorsalis dorsalis) at Southwest Wildlife Conservation Center in Scottsdale, AZ.
  • A red-eyed tree frog (Agalychnis callidryas) at the Sunset Zoo in Manhattan, Kansas.
  • Picture of an endangered white-tailed black cockatoo (Calyptorhynchus baudinii) at the Lowry Park Zoo.
  • A razorback musk turtle (Sternotherus carinatus) from a private collection.
  • Photo: A black headed gull (Larus ridibundus) at the Plzen Zoo.
  • Photo: Cactus coral (Pavona cactus) at Butterfly Pavilion.
  • Studio portrait of a northern red-backed vole (Clethrionomys rutilus.)
  • Photo: Silver variation, red fox (Vulpes vulpes) named "Sterling" at Southwest Wildlife Conservation Center.
  • Photo: A spectacled cobra (naja naja) at Reptile Gardens.
  • Photo: Saddleback moth caterpillar (Acharia stimulea) at the Audubon Insectarium.
  • Photo: An endangered gray woolly monkey (Lagothrix cana) at Mantenedor da Fauna Silvestre Cariuá.
  • Photo: Tri-colored hognose snake (Lystrophis pulcher) from a private collection.
  • Photo: A female wolf spider (Schizocosa floridana) from the University of Nebraska-Lincoln.
  • Picture of an extinct Pheres blue butterfly (Icaricia icarioides pheres) at the McGuire Center for Lepidoptera and Biodiversity.
  • Picture of a vulnerable Antipodes Island parakeet (Cyanoramphus unicolor) at the Kiwi Birdlife Park in Queenstown, New Zealand.
  • Photo: A channel whelk (Busycotypus canaliculatus) at the Maine State Aquarium in West Boothbay, ME.
  • A crocodile skink (Tribolonotus gracilis) at Omaha's Henry Doorly Zoo.
  • Photo: A male Chinese ring necked pheasant (Phasianus colchicus torquatus) at the Plzen Zoo.
  • Picture of a critically endangered (IUCN) and a federally endangered female eastern black rhino (Diceros bicornis michaeli) named Imara at the Great Plains Zoo.
  • Photo: Signal barb (Labiobarbus festivus) at Zoo Negara.
  • Picture of a Cuban grassquit (Tiaris canora) from a private collection.
  • A scissor grinder cicada (Neotibicen pruinosus) in Lincoln, NE.
  • Tiger rattlesnake (Crotalus tigris) at the Arizona-Sonora Desert Museum.
  • Atlantic deer cowry (Macrocypraea cervus) at Gulf Specimen Marine Lab and Aquarium.
  • Photo: Diademed amazon, Amazona diadema, at Loro Parque Fundacion.
  • A critically endangered (IUCN) and federally endangered Mississippi gopher frog (Lithobates sevosus) from Detroit Zoo.
  • Photo: A leopard bush fish (Ctenopoma acutirostre) at the Fish Biodiversity Lab at Auburn University.
  • Photo: Harapan, a four-year-old male Sumatran rhino (Dicerorhinus sumatrensis), at White Oak Conservation Center.
  • Photo: A male Koklass pheasant (Pucrasia macrolopha) at Lundi Farm in Verl, Germany.
  • Photo: Garden carpet moth (Xanthorhoe fluctuata) at Graham's Quinta dos Malvedos Vineyard.
  • Photo: A West Indian leopard gecko (Eublepharis fuscus) from a private collection.
  • Mallard (Anas platyrhynchos) ducklings.
  • Picture of a red-billed duck (Anas erythrorhyncha) at the Sylvan Heights Bird Park.
  • Picture of a Hosmer's spiny-tailed skink (Egernia hosmeri) at Wild Life Sydney Zoo.
  • Photo: A spotted dove (Streptopelia chinensis tigrina) at the Plzen Zoo.
  • Photo: A swallowtail shiner (Notropis procne) at the North Carolina Zoo in Asheboro, North Carolina.
  • Photo: A Peale's peregrine falcon (Falco peregrinus pealei) at Reptile Gardens.
  • A red-legged brown dart frog or rainforest rocket frog (Silverstoneia flotator) at the National Aquarium in Baltimore.
  • Photo: A hog badger (Arctonyx collaris) at Night Safari, part of Wildlife Reserves Singapore.
  • Photo: A brown wood owl (Strix leptogrammica maingayi) at Penang Bird Park.
  • Photo: A Lower Keys marsh rabbit, Sylvilagus palustris hefneri, from the wild.
  • Close up of a blood python (Python brongersmai) at the Omaha Zoo.
  • Picture of a four-spotted flounder (Paralichthys oblongus) at Gulf Specimen Marine Lab and Aquarium.
  • Picture of a ring-billed gull, Larus delawarensis, in non-breeding plumage at Sylvan Heights Bird Park.
  • Picture of a Caribbean flamingo chick (Phoenicopterus ruber) at the Indianapolis Zoo.
  • A black-winged kite (Elanus caeruleus caeruleus) at Parque Biologico.
  • A female (yellow in color) Golden Asian mantis (Hierodula venosa) at the Bugarium at the Albuquerque BioPark.
  • An endangered (IUCN) and federally endangered chimpanzee (Pan troglodytes) at Rolling Hills Wildlife Adventure.
  • Photo: A starred agama (Stellagama stellio picea) at Aquarium Berlin.
  • Photo: A critically endangered teardrop elimia (Elimia lachryma) photographed at the Alabama Aquatic Biodiversity Center in Marion, AL. As of 2000, the species was considered extinct by the IUCN. It was rediscovered in the wild in 2005, but is still considered critically imperiled
  • Photo: An American gizzard shad (Dorosoma cepedianum) photographed at Schramm Education Center, Gretna, Nebraska.
  • Picture of a Storr's monitor (Varanus storri) at the Oklahoma City Zoo.
  • Picture of a Greater sandhill crane (Grus canadensis tabida) at Tracy Aviary.
  • Pine Barrens treefrog (Hyla andersonii) at the Toledo Zoo.
  • Photo: Edible bullfrog (Pyxicephalus edulis) at the San Antonio Zoo
  • Picture of a vulnerable Hispaniolan giant tree frog (Osteopilus vastus) at the Parque Zoologico Nacional in Santo Domingo, Dominican Republic.
  • Photo: A juvenile eastern yellowbellied racer (Coluber flaviventris) at Reptile Gardens.
  • A ring-tailed cat (Bassariscus astutus) at the Fort Worth Zoo.
  • Picture of a European pond turtle (Emys orbicularis) at the National Mississippi River Museum and Aquarium in Dubuque, Iowa.
  • Photo: Ural owl (Strix uralensis macroura) at Monticello Center in Italy.
  • Timor zebra finch (Taeniopygia guttata) from Le Parc des Oiseaux in Villars Les Dombes, France.
  • Picture of a vulnerable buff weka, Gallirallus australis hectori, at the Kiwi Birdlife Park.
  • Photo: A European barn owl (Tyto alba alba) at the Raptor Recovery Center, Nebraska.
  • Photo: A Malaysian blue femur (Psednocnemis brachyramosa) from a private collection.
  • Photo: Inverted jellyfish (Cassiopea xamachana) at Loro Parque's aquarium in Puerto de la Cruz, Tenerife, Spain
  • A near threatened Nicobar pigeon (Caloenas nicobarica) at Omaha's Henry Doorly Zoo and Aquarium, Omaha, Nebraska.
  • Photo: An Ozark hellbender (Cryptobranchus alleganiensis bishopi) at the St. Louis Zoo. This facility is famous for rearing hellbenders, but also for studying cures for chytrid (bd) fungus and other threats.
  • Photo: A Madagascar night snake (Madagascarophis colubrinus occidentalis) at the Plzen Zoo in the Czech Republic.
  • Photo: A lemon emigrant (Catopsilia pomona pomona) at the Jumalon Butterfly Sanctuary on Cebu Island in the Philippines.
  • Photo: A common bronzewing (Phaps chalcoptera) at the Prague Zoo.
  • Picture of a fringe tree frog (Cruziohyla craspedopus) from the Atlanta Botanical Gardens.
  • A vulnerable (IUCN) Tarahumara leopard frog (Lithobates tarahumarae) at the Arizona-Sonora Desert Museum.
  • Picture of a dusky-headed conure (Aratinga weddellii) at the National Aviary of Colombia.
  • Photo: Red-billed quelea (Quelea quelea) in Choussy, France.
  • Photo: A belted sandfish (Serranus subligarius) at Gulf Specimen Marine Lab.
  • Photo: Pulsing pom pom xenia (Cespitularia sp.) at Butterfly Pavilion.
  • White-throated monitor (Varanus albigularis albigularis) at the Omaha Zoo.
  • Picture of a federally threatened spectacled Eider (Somateria fischeri) at the Cincinnati Zoo.
  • Photo: Central Plains milk snake (Lampropeltis triangulum gentilis) collected in Jefferson County, Nebraska.
  • Picture of a federally endangered Ozark hellbender (Cryptobranchus alleganiensis bishopi), infected with chytrid fungus, at the St. Louis Zoo, St. Louis, Missouri.
  • Photo: Violaceous jay (Cyanocorax violaceus) at Parque Jaime Duque near Bogota, Colombia.
  • Photo: Critically Endangered Bandula barb (Pethia bandula) at the Plzen Zoo. This is the Photo Ark's 9,000th species!
  • A hooded tick spider (Cryptocellus narino) at the University of Porto in Portugal.
  • Picture of a barnacle goose (Branta leucopsis) at the Houston Zoo.
  • Photo: A giant golden mantis (Hierodula venosa) at the Bugarium, part of the ABQ BioPark.
  • Picture of an endangered red ruffed lemur (Varecia rubra) at the Miller Park Zoo.
  • Photo: A longfin inshore squid (Doryteuthis pealeii) at the Maine State Aquarium in West Boothbay, ME.
  • Picture of a little blue penguin (Eudyptula minor) at SPCA Bird Wing, a bird rehab center in Auckland, New Zealand.
  • Photo: Eurasian curlew (Numenius arquata) at Monticello Center in Italy.
  • Photo: A common hill myna (Gracula religiosa) at the Assam State Zoo cum Botanical Garden.
  • Pickerel frog (Lithobates palustris) at the National Aquarium in Baltimore.
  • Photo: A Scottish wildcat, Felis silvestris grampia, at Wildwood Trust near Canterbury, England.
  • Photo: Senegal Mabuya (Trachylepis affinis) from Bioko Island in Equatorial New Guinea.
  • Usambara golden starburst, or Usambara orange baboon, tarantula (Pterinochilus murinus) at the Great plains Zoo.
  • Photo: A cinnamon ground dove (Gallicolumba rufigula rufigula) at the Plzen Zoo.
  • A white-faced saki monkey (Pithecia pithecia) at the Kansas City Zoo.
  • Picture of a pink-footed goose, Anser brachyrhynchus, at Sylvan Heights Bird Park.
  • Photo: A Cape genet (Genetta tigrina) at North Somerset Bird of Prey Centre in England.
  • Angola colobus monkeys (Colobus angolensis palliates) at the Omaha Zoo.
  • Photo: Blue bat star (Patiria pectinifera) at the Moscow Zoo.
  • A blue-winged kookaburra (Dacelo leachii) at the Houston Zoo.
  • Photo: Three common river frogs (Amietia angolensis) from Gorongosa National Park.
  • Photo: A golden-breasted starling (Lamprotornis regius) at the Riverbanks Zoo in Columbia, SC.
  • Photo: Lyle's flying fox (Pteropus lylei) at the Budapest Zoo.
  • Photo: A laughing dove (Stigmatopelia senegalensis) at Jurong Bird Park, of Wildlife Reserves Singapore.
  • Picture of a weedy scorpionfish (Rhinopias frondosa) at Omaha's Henry Doorly Zoo and Aquarium.
  • Photo: An Everglades pygmy sunfish (Elassoma evergladei) From the panhandle near Bonifay, FL., photographed at Conservation Fisheries.
  • Picture of a saffron shiner (Notropis rubricroceus) at the Virginia Aquarium.
  • Picture of a strawberry poison dart frog (Oophaga (Dendrobates) pumilio) at Omaha's Henry Doorly Zoo.
  • A female alfalfa butterfly (Colias eurytheme) from Dieken Prairie near Undadilla, Nebraska.
  • Photo: Stick insect (Hermagoras cultratolobatus) at the Moscow Zoo.
  • Hadada or Hadeda Ibis (Bostrychia hagedash brevirostris) at the Henry Doorly Zoo and Aquarium.
  • A velvet ant (Dasymutilla sp.) at Springs Preserve, Las Vegas, NV.
  • Picture of a critically endangered and federally endangered radiated tortoise (Astrochelys radiata) from the Indianapolis Zoo.
  • Photo: Bezy's night lizard (Xantusia bezyi) from a private collection.
  • Picture of a D'Albert's python or white lipped python (Leiopython albertisii) at the Knoxville Zoo.
  • Photo: Dun skipper (Euphyes vestris) from a prairie woodland near Cross Lake, Minnesota.
  • Picture of a four-week old, male leopard cat (Prionailurus bengalensis chinensis).
  • Photo: A giant fringe-limbed treefrog (Ecnomiohyla fimbrimembra) at Zoo Atlanta.
  • Photo: Moluccan king parrot, Alisterus amboinensis buruensis, at Loro Parque Fundacion.
  • An Egyptian spiny-tailed lizard (Uromastyx aegyptia) at Reptile Gardens.
  • Photo: An Indian scops owl (Otus bakkamoena) at the North Somerset Bird of Prey Centre in North Somerset, United Kingdom.
  • A critically endangered (IUCN) and federally endangered, juvenile Jamaican boa (Chilabothrus subflavus) from a private collection. The adults are yellow.
  • Photo: Parson spider (Herpyllus ecclesiasticus) at Butterfly Pavilion in Westminster, Colorado.
  • Picture of a federally endangered, American alligator (Alligator mississippiensis) at the Kansas City Zoo.
  • Photo: Two yellowcheek darters (Etheostoma moorei) collected from Little Red River, near Clinton, Arkansas, photographed at Conservation Fisheries.
  • A vulnerable (IUCN) greater prairie-chicken (Tympanuchus cupido.)
  • A spotted salamander (Ambystoma maculatum) at Zoo Atlanta, Atlanta, Georgia.
  • Photo: Chinese cave gecko (Goniurosaurus hainanensis) at Loro Parque.
  • Yellowfin madtoms (Noturus flavipinnis) a vulnerable (IUCN) and federally threatened species at Conservation Fisheries, a native stream fish breeding center.
  • Photo: A Ganzhorn’s mouse-lemur (Microcebus ganzhorni) at the Plzen Zoo in the Czech Republic.
  • Photo: A rare Madagascar snake (Pseudoxyrhopus tritaeniatus) at the Plzen Zoo in the Czech Republic.
  • A female, vulnerable African elephant (Loxodonta africana) at the Cheyenne Mountain Zoo.
  • Picture of Terri, a hand-raised, female Javan rhinoceros hornbill (Buceros rhinoceros silvestris) at the Cincinnati Zoo.
  • A Sandhill crane (Antigone canadensis tabida) at the Sutton Avian Research Center.
  • Photo: Solomons corella (Cacatua ducorpsii) at Park Assango, ONG Animal's World in Libreville, Gabon.
  • Spiny-headed treefrog (Anotheca spinosa) from central America at Zoo Atlanta.
  • A white-breasted woodswallow (Artamus leucorynchus) at the Sedgwick County Zoo.
  • Photo: An endangered Sacramento perch (Archoplites interruptus) at East Bay Regional Park District.
  • Picture of a black-faced dacnis (Dacnis lineata) at the Houston Zoo.
  • Miss Sandy Hill, a federally endangered Mississippi sandhill crane (Grus canadensis pulla), at the Audubon Center for Research of Endangered Species. Only 110 of this sandhill crane subspecies exists in the wild. Only another 45 birds are in captivity.
  • Picture of a diamond firetail (Stagonopleura guttata) at Healesville Sanctuary.
  • Photo: A male Common shiner (Luxilus cornutus) in breeding colors at the Minnesota Department of Natural Resources Center for Aquatic Mollusk Programs.
  • Photo: Pyne's ground plum or Guthrie's ground-plum (Astragalus bibullatus), a federally endangered plant that exists only in a one-mile-square area outside of Nashville within the 'cedar glades' ecosystem.
  • Picture of a Sonoran mountain kingsnake (Lampropeltis pyromelana knoblochi) at the Caldwell Zoo in Tyler, Texas.
  • Photo: Red jointed fiddler crab (Uca minax) at Gulf Specimen Marine Lab and Aquarium.
  • Photo: Pacific beetle cockroach (Diploptera punctata) at the Budapest Zoo.
  • Photo: Pine Island rice rat (Oryzomys palustris planirostris) at Ding Darling National Wildlife Refuge on Sanibel Island, Florida.
  • A vulnerable Mexican caecilian (Dermophis mexicanus) at the Tennessee Aquarium.
  • An endangered (IUCN) and federally endangered male Jentink's duiker (Cephalophus jentinki) named 'Taz' at the Gladys Porter Zoo. This animal was the last of its species in captivity. It is endangered in the wild, and declining, so it's highly unlikely that any more will ever be found in the world's zoos. Taz passed away in 2013 at the age of 17.
  • Photo: A critically endangered Sulawesi cardinal shrimp (Caridina dennerli) from a private collection.
  • Photo: Blue mahseer (Neolissochilus stracheyi) at Zoo Negara.
  • Amethystine scrub python (Morelia amethistina) at the Omaha Zoo.
  • Photo: An European wildcat (Felis silvestris silvestris) at Parco Natura Viva in Bussolengo, Italy.
  • A male and female Celebes leaf insect (Phyllium celebicum) at the Omaha Henry Doorly Zoo, Omaha, Nebraska. The male is the smaller of the two.
  • Photo: A juvenile Florida Keys rat snake (Pantherophis alleghaniensis deckerti) from a private collection.
  • Photo: Purple sunstar (Solaster endeca) at the Moscow Zoo.
  • A critically endangered (IUCN) and federally endangered, injured Kemp's ridley sea turtle (Lepidochelys kempii) at the Gladys Porter Zoo.
  • Photo: Merlin (Falco columbarius columbarius) at Bay Beach Wildlife Sanctuary
  • Picture of a zebra spitting cobra (Naja nigricincta) at the Dallas Zoo.
  • A male checkered white butterfly (Pontia protodice) from Dieken Prairie near Undadilla, Nebraska.
  • Photo: White spotted puffer (Arothron hispidus) at Pure Aquariums.
  • Photo: A Guinean puffer (Sphoeroides marmoratus) at the Vasco da Gama Aquarium in Lisbon, Portugal.
  • Photo: A banded elephant trunk snake (Acrochordus granulatus) in Jakarta, Indonesia in the care of PT. Alam Nusantara Jayatama.
  • Picture of a conspicuous angelfish (Chaetodontoplus conspicillatus) at the Dallas World Aquarium.
  • Picture of a Western cattle egret (Bubulcus ibis ibis) at the Columbus Zoo.
  • Photo: A giant West African snail (Archachatina marginata ovum) at Aquarium Berlin.
  • Photo: An endangered Guam Micronesian kingfisher (Todiramphus cinnamominus cinnamominus) at the Houston Zoo.
  • Photo: A red lacewing (Cethosia biblis liacura) at Davao Butterfly House in Davao City, Philippines.
  • Picture of an endangered (IUCN) and federally endangered Franois langur (Trachypithecus francoisi) at the Kansas City Zoo.
  • A common Myna or Indian Myna, (Acridotheres tristis tristis) from a private collection.
  • Photo: A brown trout (Salmo trutta) at the Schramm Education Center near Gretna, NE.
  • Picture of a Malagasy cat eyed snake (Madagascarophis colubrinus) at the Knoxville Zoo.
  • Photo: A grasshopper of the Acrida genus in Gorongosa National Park, Mozambique.
  • Picture of a Shama thrush or common shama (Copsychus malabaricus) at Tracy Aviary.
  • Photo: An unidentified ground beetle belonging to the Carabidae family at Museo d'Orbigny.
  • A black Pakistan cobra (Naja naja) from a private collection.
  • Photo: Common wildebeest (Connochaetes taurinus) at the Columbus Zoo.
  • Photo: A southern rufous hornbill, Buceros mindanensis semigaleatus, at Talarak Foundation.
  • Picture of a male red-crested pochard (Netta rufina) at the Sylvan Heights Bird Park.
  • Photo: A male Mrs. Hume's pheasant (Syrmaticus humiae humiae) at a private collection.
  • A federally threatened North American black bear (Ursus americanus) at Omaha Zoo's Wildlife Safari Park.
  • Picture of Thomson's gazelles (Eudorcas thomsonii) at the Columbus Zoo.
  • Arabian oryx, Oryx leucoryx, at the Phoenix Zoo. This species is listed as vulnerable.
  • Photo: Worrelli turtle (Emydura subglobosa worrelli) at Templestowe College.
  • A grotto salamander (Eurycea spelaea) from the Tulsa Zoo.
  • Photo: A male wolf spider (Schizocosa communis) from the University of Nebraska-Lincoln.
  • Photo: Lowland blotched blue tongue skink (Tiliqua nigrolutea) from a private collection.
  • Photo: An African bullfrog (Oyxicephalus adspersus) at Reptile Gardens.
  • A Brazilian porcupine (Coendou prehensilis) at the Denver Zoo, Denver, Colorado.
  • Picture of a federally endangered jaguarundi (Puma yagouaroundi) at Bear Creek Feline Center.
  • Indian leaf (Kallima paralekta) at Malacca Butterfly and Reptile Sanctuary.
  • Photo: A Peleides blue morpho (Morpho peleides) at the Butterfly Pavilion.
  • A hosue gecko (Hemidactylus mabouia) collected in Chitengo Camp, in Gorongosa National Park.
  • A luna moth (Actias luna) at the Lincoln Children's Zoo.
  • Photo: A West African green mamba (Dendroaspis virdis) at Reptile Gardens.
  • Picture of a male American wigeon (Mareca americana) at Sylvan Heights Bird Park.
  • Photo: Caper white butterfly (Belenois java) at Melbourne Zoo. This is a female.
  • A school of mosquitofish (Gambusia affinis) at the Tulsa Zoo, Tulsa, Oklahoma.
  • Photo: Eurasian wryneck (Jynx torquilla torquilla) at Alpenzoo in Innsbruck, Austria.
  • Photo: Dickcissel (Spiza americana) wild caught by biologists using a mist net, near Wood River, Nebraska.
  • Picture of chinstrap penguins (Pygoscelis antarcticus) at the Newport Aquarium.
  • Red legged running frog (Kassina maculata) at Safari Land Pet Center.
  • Photo: A long-tailed fiscal (Lanius cabanisi) at the Zoo Berlin.
  • Photo: White-footed deer mouse (Peromyscus leucopus bairdii) at Bay Beach Wildlife Sanctuary
  • Photo: Question mark cockroach (Therea olegrandjeani) at the Budapest Zoo.
  • Picture of a Xingu river ray, Potamotrygon leopoldi, at the Dallas World Aquarium.
  • Picture of a vulnerable (IUCN) and federally endangered St. Vincent parrot (Amazona guildingii) at the Houston Zoo.
  • Picture of a leopard seal (Hydrurga leptonyx) named Casey at the Taronga Zoo.
  • A razorback sucker (Xyrauchen texanus), from the Colorado River System. (US: Endangered; IUCN: Critically endangered)
  • A St. Andrew beach mouse (Peromyscus polionotus peninsularis) a federally endangered rodent, at the USFWS office in Panama City, FL. This and several other beach mice subspecies are imperiled due to beach development.
  • Photo: A silver orb weaver (Argiope argentata) at the Museo d'Orbigny Natural History Museum in Cochabamba, Bolivia.
  • Blue Ridge two-lined salamander (Eurycea wilderae) from Zoo Atlanta.
  • Picture of a federally-endangered Key Largo cotton mouse (Peromyscus gossypinus allapaticola). This animal now numbers fewer than 1,000, and like all wildlife in the Florida Keys, it could be lost for good when ocean levels rise and flood their island home.
  • Photo: A pale headed rosella (Platycercus adscitus palliceps) at Loro Parque Fundacion.
  • A Platte River caddisfly (Ironoquia plattensis) in its larval stage.
  • Picture of an endangered (IUCN) and federally endangered Hispaniolan solenodon (Solenodon paradoxus) at Parque Zoologico Nacional in the Dominican Republic.
  • Photo: An orphaned Philippine long-tailed macaque (Macaca fascicularis philippensis) on Mindoro Island in the Philippines.
  • Mexican box turtle (Terrapene carolina mexicana) at Zoo Atlanta.
  • Picture of a Puerto Rican boa (Chilabothrus inornatus) at the Palm Beach Zoo.
  • Texas ratsnake (Elaphe obsoleta lindheimeri) at the Omaha Zoo.
  • Photo: A female black-casqued wattled hornbill (Ceratogymna atrata) at the North Florida Wildlife Center.
  • Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.
  • A speckled pigeon (Columba guinea) at the Columbus Zoo.
  • Juvenile mink (Neovison vison).
  • An acorn woodpecker (Melanerpes formicivorus) at Wildlife Images, an animal rehabilitation center near Merlin, Oregon.
  • Arabian oryx, Oryx leucoryx, at the Phoenix Zoo. This species is listed as vulnerable.
  • Photo: An endangered Decary's leaf chameleon (Brookesia decaryi) from a private collection.
  • Picture of a green kingfisher (Chloroceryle americana cabanisii) at the National Aviary of Colombia.
  • Picture of a rose-coloured starling (Sturnus roseus) or rosy starling, at the Houston Zoo.
  • Critically endangered (IUCN) McCord's box turtle (Cuora mccordi) at the St. Louis Zoo.
  • A Western screech owl, Sonoran Desert color phase (Megascops kennicottii aikeni) at the Sutton Avian Research Center.
  • A side-striped palm pit viper (Bothriechis lateralis) at the Houston Zoo, Houston, Texas.
  • A western massasauga (Sistrurus tergeminus tergeminus) at Reptile Gardens.
  • A ruddy turnstone (Arenaria interpres).
  • Photo: A spotted kestrel (Falco moluccensis microbalius) at Taman Safari.
  • Photo: A male Chinese ring necked pheasant (Phasianus colchicus torquatus) at the Plzen Zoo.
  • Photo: Dwarf hissing cockroach (Elliptorhina chopardi) at the Budapest Zoo.
  • A critically endangered black and white ruffed lemur (Varecia variegata) at the Lincoln Children's Zoo.
  • A California sea lion, Zalophus californianus.
  • Albino green frog (Lithobates clamitans) at the National Aquarium in Baltimore.
  • Photo: A male Delacour's crested fireback (Lophura ignita macartneyi) from a private collection.
  • Photo: A blotched blue-tongued lizard (Tiliqua nigrolutea) at Healesville Sanctuary.
  • Photo: A Giant Asian pond turtle (Heosemys grandis) at Angkor Centre for Conservation of Biodiversity (ACCB) in Cambodia.
  • Photo: A Malaysian gliding tree frog (Rhacophorus pardalis) from a private collection.
  • A cave salamander (Eurycea lucifuga) at Zoo Atlanta, Atlanta, Georgia.
  • A painted wood turtle (Rhinoclemmys pulcherrima) at the Lincoln Children's Zoo, Lincoln, Nebraska.
  • Picture of a federally endangered, American alligator (Alligator mississippiensis) at the Kansas City Zoo.
  • A pair of vulnerable (IUCN) ashy darters (Etheostoma cinereum), a very rare fish species with a shrinking range in TN and VA, at Conservation Fisheries, a native stream fish breeding center. This fish should be listed as endangered but hasn't been due to lack of lack of funding and little survey work to determine just how imperiled it is.
  • The federally endangered Iowa Pleistocene Snail (Discus macclintocki). This is a relict from the last ice age, some 400,000 years ago. It lives in cold air vents on 37 different hillsides in Iowa (and one in Illinois) and survives only in the cold air that blows past underground ice and out of the cracks in limestone cliffs.
  • A scissor grinder cicada (Neotibicen pruinosus) in Lincoln, NE.
  • Photo: A tinfoil beetle (Pretosia lewisi) at the Cincinnati Zoo.
  • A western Mojave glossy snake (Arizona elegans candida) from a private collection.
  • Photo: A Pinon's imperial pigeon (Ducula pinon) at the Jurong Bird Park.
  • Two Pallas's cats (Otocolobus manul) at the Columbus Zoo, Columbus, Ohio.
  • Picture of a Schaus' Swallowtail (Papilio aristodemus) at the McGuire Center for Lepidoptera and Biodiversity.
  • Photo: A pregnant, female Australian velvet gecko (Oedura monilis) from a private collection.
  • Photo: A boomslang (Dispholidus typus) at Reptile Gardens.
  • A critically endangered (IUCN) and federally endangered Bali mynah (Leucopsar rothschildi) at the Cheyenne Mountain Zoo, Colorado Springs, Colorado.
  • Photo: A Black marsh turtle (Siebenrockiella crassicollis) at Angkor Centre for Conservation of Biodiversity (ACCB) in Cambodia.
  • Photo: An olive ridley sea turtle, Lepidochelys olivacea, at the Loggerhead Marinelife Center.
  • An endangered Goodfellow's tree-kangaroo (Dendrolagus goodfellowi) at the Melbourne Zoo.
  • Photo: Plains topminnow (Fundulus sciadicus) at the Minnesota Department of Natural Resources Center for Aquatic Mollusk Programs.
  • Picture of a Murray Darling carpet python (Morelia spilota metcalfei) at the Healesville Sanctuary.
  • Photo: A little black cormorant (Phalacrocorax sulcirostris) at Taman Safari.
  • Photo: A Javan horned frog (Megophrys montana) at WWT Slimbridge in England.
  • Picture of a crane hawk (Geranospiza caerulescens) at the PanAmerican Conservation Association in Gamboa, Panama.
  • Photo: A stock dove (Columba oenas oenas) at the Plzen Zoo.
  • Photo: A common house cricket (Acheta domestica).
  • Picture of an amphioxus (Branchiostoma floridae), a species said to be the closest link between invertebrates and vertebrates, at Pure Aquariums from the Gulf Specimen Marine Lab.
  • Photo: A juvenile female Elliot's pheasant (Syrmaticus ellioti) at Tierpark Berlin.
  • Photo: Gulf Coast ribbon snake (Thamnophis proximus orarius) at the Omaha Zoo.
  • Photo: A greenbreast darter (Etheostoma jordani) collected in the Conasauga River near Conasauga, Tennessee.
  • European white stork (Ciconia ciconia ciconia) at the Lincoln Children's Zoo.
  • An immature member of the Membracidae family (treehoppers).
  • A Cope's treefrog (Hyla chrysoscelis) caught in the wild near Dunbar, Nebraska.
  • Photo: Yellowish spur-throat grasshopper (Melanoplus flavidus) at Cedar Point Biological Station.
  • A Tuxtlan jumping pitviper or Olmecan pitviper (Atropoides olmec) at the Chapultepec Zoo, Mexico City, Mexico.
  • Photo: Two purple sea urchins (Arbacia punctulata) at Pure Aquariums in Lincoln, Nebraska.
  • Photo: Crab-eating macaque or long-tailed macaque (Macaca fascicularis) at the Singapore Zoo.
  • Photo: Predaceous diving beetle (Cybister fimbriolatus) at the Bugarium at the Albuquerque BioPark.
  • Photo: An Indian star tortoise (Geochelone elegans) at the Taronga Zoo.
  • Photo: Chihuahuan mountain kingsnake (Lampropeltis pyromelana knoblochi) at the Arizona-Sonora Desert Museum.
  • Photo: A male Sacramento mountain salamander (Aneides hardii) at ABQ BioPark.
  • Photo: A South American mountain lion (Puma concolor puma) at the Zoológico Nacional de Chile (Chilean National Zoo).
  • A federally endangered yellow-footed rock wallaby (Petrogale xanthopus) at Omaha Zoo's Wildlife Safari Park.
  • Photo: A sun beam snake (Xenopeltis unicolor) in Jakarta, Indonesia in the care of PT. Alam Nusantara Jayatama.
  • A federally endangered Florida panther (Puma concolor coryi) named Lucy at Tampa's Lowry Park Zoo.
  • Photo: A bumblebee cichlid (Pseudotropheus crabro) at the Medicine Park Aquarium and Natural Sciences Center in Medicine Park, OK.
  • Splendid mantella (Mantella pulchra) at the Detroit Zoo. (IUCN: Vulnerable)
  • Photo: A black-throated grosbeak (Saltator fuliginosus) at the Membeca Lagos Farm, near Rio de Janeiro, Brazil.
  • A Viceroy butterfly (Limenitis archippus) at the Lincoln Children's Zoo in Lincoln, Nebraska.
  • Photo: A Desmarest's hutia (Capromys pilorides) at the Faunia zoo in Madrid, Spain.
  • A narrow-bridged musk turtle (Claudius angustatus) at the Chapultepec Zoo in Mexico City.
  • A federally endangered maned wolf (Chrysocyon brachyurus) at the Sunset Zoo.
  • Photo: Eccentric sand dollar (Dendraster excentricus) at Ripley's Aquarium of Canada.
  • Picture of a Mexican black kingsnake (Lampropeltis getula nigrita) at the Cheyenne Mountain Zoo in Colorado Springs, CO.
  • A Platte River caddisfly (Ironoquia plattensis) in its larval stage.
  • Photo: A ridgetop swiftlet (Collocalia esculenta bagobo) at the Philippine Eagle Center.
  • Photo: A tarantula (Euthycaelus colonicus) from a private collection.
  • Coturnix quail (Coturnix coturnix japonicus) at the Sutton Avian Research Center.
  • Mississippi green water snake (Nerodia cyclopion) at the Estuarium in Dauphin Island, AL.
  • South American snake-necked turtle (Hydromedusa tectifera) at the Detroit Zoo.
  • Photo: An Indian tarantula (Haploclastus kayi) from a private collection.
  • Photo: A white-breasted water hen (Amaurornis phoenicurus phoenicurus) on Semirara Island in the Philippines.
  • Photo: A Western spotted dove (Streptopelia suratensis) at the Plzen Zoo in the Czech Republic.
  • Picture of a snow goose (Chen caerulescens) in blue phase.
  • Photo: Belize yellow headed amazon (Amazona oratrix beliziensis) at Loro Parque Fundacion.
  • Picture of an ocellated turkey (Meleagris ocellata) at the Dallas World Aquarium.
  • Photo: Arizona skunk (Mephitis mephitis estor) at Southwest Wildlife Conservation Center.
  • Photo: Common bulbul (Pycnonotus barbatus) at the Philadelphia Zoo.
  • A chipping sparrow (Spizella passerina arizonae) at the Brown Ranch, Texas.
  • Picture of a white-lined sphinx (Hyles lineata) from the wild in Oklahoma City, Oklahoma.
  • A bluegill (Lepomis macrochirus) at the Nebraska Game & Parks Commission, Nebraska.
  • Staff members at the Loggerhead Marinelife Center care for ‘Meghan’ an olive ridley sea turtle (Lepidochelys olivacea). This animal came in after becoming entangled in fishing gear. Once rehabbed, the animal will be released in waters off the coast.
  • Photo: A ranger marsupial frog (Gastrotheca orophylax) at Centro Jambatu in Quito, Ecuador.
  • Photo: A male Greater European scaup (Aythya marila marila) at WWT Slimbridge in England.
  • Photo: A female Perret’s peacock chameleon (Trioceros perreti) from a private collection.
  • A Northern red-billed hornbill (Tockus erythrorhynchus erythrorhynchus) at Omaha’s Henry Doorly Zoo and Aquarium, Omaha, Nebraska.
  • Picture of a fiery searcher beetle or catarpiller hunter (Calosoma scrutator) at the Houston Zoo.
  • A chuckwalla (Sauromalus ater) at the Rolling Hills Wildlife Adventure, Salina, Kansas.
  • Picture of Matilda, a forest red-tailed black cockatoo (Calyptorhynchus banksii naso) at Tracy Aviary.
  • Photo: Common moorhen (Gallinula chloropus) in Choussy, France.
  • Photo: Romeo, a ten-year-old Sehuencas water frog (Telmatobius yuracare) at Museo De Historia Natural Alcide d'Orbigny, a natural history museum and rare amphibian breeding center in Chocabamba Bolivia.
  • A federally endangered maned wolf (Chrysocyon brachyurus) at the Sunset Zoo.
  • Photo: An unidentified noisy foam nest frog (Engystomops sp. Baquerizo Moreno) at Centro Jambatu in Quito, Ecuador.
  • With one of the world's largest migratory routes, the red knot (Calidris canutus rufa) finds itself especially susceptible to any disruption in its feeding areas along the way. Overfishing of horseshoe crabs along the eastern coast of the US has taken away a much-needed source of energy for the species. (US: Candidate for listing)
  • A vulnerable pygmy slow loris (Nycticebus pygmaeus) at Omaha's Henry Doorly Zoo and Aquarium, Omaha, Nebraska.
  • Photo: A water scavenger beetle (Hydrophilus triangularis) at the Audubon Insectarium in New Orleans, Louisiana.
  • A southern three-banded armadillo (Tolypeutes matacus) at the Lincoln Children's Zoo, Lincoln, Nebraska. (IUCN: Near Threatened)
  • Crested wood partridge (Rollulus rouloui) at the Great Plains Zoo, Sioux Falls, South Dakota.
  • Photo: Asiatic black-spined toad (Bufo melanostictus) at the Miller Park Zoo. These toads are common to the Indian subcontinent, where they wait under street lights to catch insects.
  • A vulnerable ornate monitor (Varanus ornatus) at the Cincinnati Zoo.
  • Photo: Andaman Islands stick insect (Sceptrophasma hispidulum) at the Budapest Zoo.
  • Photo: A Eurasian sparrowhawk (Accipiter nisus nisus) at Parque Biologico.
  • Photo: A greenfin shiner (Cyprinella chloristia) at the North Carolina Zoo in Asheboro, North Carolina.
  • Photo: An unidentified butterfly on Semirara Island in the Philippines.
  • Photo: Red-spotted assassin bug (Platymeris rhadamanthus) at the Insectarium in New Orleans.
  • Photo: A Texas indigo snake (Drymarchon corais erebennus) at the Fort Worth Zoo.
  • Photo: African wildcat (Felis silvestris ocreata) at the Moscow Zoo.
  • A Choctawhatchee beach mouse (Peromyscus polionotus allophrys) a federally endangered rodent, at the USFWS office in Panama City, FL. This and several other beach mice subspecies are imperiled due to beach development.
  • Picture of a yellow fattail scorpion (Androctonus australis) at the Houston Zoo.
  • Photo: Large-scale loach (Paramisgurnus dabryanus) at the Tracy Fish Collection Facility near Byron, CA
  • Photo: A green snake (Philodryas olfersii olfersii) at Fundacao Jardim Zoologico de Brasilia.
  • A venomous Jameson’s mamba (Dendroaspis jamesoni kaimosae) at Reptile Gardens.
  • Picture of Ikoto, the last captive, endangered, male Sanford's lemur (Eulemur sanfordi) at the Lemur Conservation Foundation near Myakka City, Florida.
  • Picture of a Lubbock's wrasse (Cirrhilabrus lubbocki) at Pure Aquariums.
  • Photo: A Florida softshell turtle (Trionyx ferox) at Reptile Gardens.
  • Picture of a Heck's grass finch (Poephila acuticauda hecki) from a private collection.
  • Picture of a Zesto's skipper (Epargyreus zestos) at the McGuire Center for Lepidoptera and Biodiversity.
  • Picture of an endangered Northern helmeted curassow (Pauxi pauxi pauxi) at the National Aviary of Colombia.
  • Photo: Blue Boxfish (Ostracion meleagris) at Pure Aquariums.
  • Photo: Utah milk snake (Lampropeltis triangulum taylori) at the LA Zoo.
  • Photo: A lemon dove (Columba larvata) at the Jurong Bird Park.
  • Picture of a diablito, also known as a little devil poison frog (Oophaga sylvatica) Santa Domingo, Ecuador locality, from a private collection.
  • Picture of a eastern towhee (Pipilo erythrophthalmus) at Kissemmee Prairie Preserve State Park.
  • A male mimic poison frog (Ranitomeya imitator) with a single tadpole on his back, from a private collection.
  • Photo: A darkling beetle (Eleodes sp.) at the Audubon Insectarium in New Orleans.
  • Photo: Redear sunfish (Lepomis microlophus) at the Loveland Living Planet Aquarium.
  • Photo: A marbled rain frog (Scaphiophryne marmorata) from the Plzen Zoo in the Czech Republic.
  • Photo: A Javan crested serpent-eagle (Spilornis cheela bido) at Taman Mini Indonesia Indah.
  • Photo: A timber rattlesnake (Crotalus horridus horridus) at Reptile Gardens.
  • An endangered terrible poison dart frog or golden poison dart frog (Phyllobates terribilis) at the Riverbanks Zoo.
  • Picture of giant African millipedes (Archispirostreptus gigas) at the Point Defiance Zoo.
  • Photo: Jacintha eggfly butterfly (Hypolimnas bolina jacintha) at Singapore Zoo.
  • A diamondback water snake (Nerodia rhombifer rhombifer) at the Tulsa Zoo.
  • Photo: A marsh meadow grasshopper (Chorthippus curtipennis) at the Niwot Ridge Long Term Ecological Research site, near Nederland, CO. This research site is funded by the National Science Foundation.
  • Picture of a rufous owl (Ninox rufa) named Angus at the Taronga Zoo.
  • A western blacknose dace (Rhinichthys obtusus) at the West Liberty University Crayfish Conservation Lab in West Liberty, West Virginia.
  • Mearn's eastern cottontail rabbit (Sylvilagus floridanus mearnsii) at Nebraska Wildlife Rehab in Louisville, Nebraska.
  • A painted turtle (Chrysemys picta belli) at Reptile Gardens.
  • Photo: Sonoyta mud turtle (Kinosternon sonoriense longifemoralis) at the Arizona-Sonora Desert Museum.
  • Photo: A Mackinders eagle owl (Bubo capensis mackinderi) photographed at Rodbaston Animal Zone in Penkridge, England.
  • Photo: Florida cucumber (Holothuria floridana) at Butterfly Pavilion.
  • A Vietnamese forest centipede (Scolopendra subspinipes) at the Audubon Zoo in New Orleans, Louisiana.
  • A Buffon's turaco (Tauraco persa buffoni) at the Santa Fe College Teaching Zoo.
  • Photo: An American crocodile (Crocodilus acutus) at the Omaha Zoo.
  • Mount Lyell salamander (Hydromantes platycephalus) caught in the wild at Sixty Lake Basin of King's Canyon National Park, Nevada.
  • Photo: An endangered (IUCN) and federally endangered snow leopard (Panthera uncia) at the Miller Park Zoo.
  • Photo: African spurred tortoise (Geochelone sulcata) at the Denver Zoo.
  • Photo: Badge Huntsman (Neosparassus sp.) from the Melbourne Museum
  • Picture of a Colombian chachalaca (Ortalis columbiana) at the National Aviary breeding center.
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