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 38,419-picture Photo Ark for an animal or species. Scroll down to see every species in the Ark … if you’ve got all day.

  • 11,700 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
  • Picture of a Krider's, or light phased, red-tailed hawk. (Buteo jamaicensis krideri)
  • Picture of an Argentine red shoveler (Anas platalea) at the Sylvan Heights Bird Park.
  • A hippopotamus (Hippopotamus amphibius) at the San Antonio Zoo. (IUCN: Vulnerable)
  • A katydid/grasshopper that has adapted to mimic foliage on Bioko Island, Equatorial Guinea.
  • Photo: An adult Morocco lizard-fingered gecko (Saurodactylus brosseti) from a private collection.
  • Photo: Shovelnose ray (Glaucostegus typus) at Shark Reef Aquarium.
  • Photo: A male and female L’Hoest’s monkey (Allochrocebus lhoesti) at Parco Natura Viva.
  • Brazilian giant tarantula (Lasiodora parahybana) at Malacca Butterfly and Reptile Sanctuary.
  • Photo: An endangered storm's stork, Ciconia stormi, at Zoo Negara.
  • Photo: A female giant winged walking stick (Phasma gigas "Jailolo") at the Budapest Zoo.
  • Photo: A male black-naped oriole (Oriolus chinensis yamamurae) at Eltoro Zoo de la Castellana, Inc., on Negros Island, Philippines.
  • Picture of a red river hog (Potamochoerus porcus) named Sir Francis Bacon at the Cincinnati Zoo. This was a hand-raised and very friendly program animal. He was hungry the entire time and posed easily as long as the yams didn't run out.
  • A marbled newt (Triturus marmoratus) at the Houston Zoo.
  • Photo: A striped newt (Notophthalmus perstriatus) at the Sedgwick County Zoo.
  • Photo: An endangered white-winged guan (Penelope albipennis) at Parque de las Leyendas in Lima, Peru.
  • A Eurasian eagle owl (Bubo bubo) at Zoo Atlanta.
  • Scarlet macaws (Ara macao) at the Henry Doorly Zoo in Omaha, Nebraska.
  • Photo: Freshwater shrimp (Caridina multidentata) at Kansas University.
  • An Osage copperhead (Agkistrodon contortrix phaeogaster) at Reptile Gardens.
  • Picture of an endangered male yellow cheeked gibbon (Nomascus gabriellae) at the Singapore Zoo.
  • Photo: Apalachicola kingsnake (Lampropeltis getula meansi) at the Cincinnati Zoo.
  • Photo: A wart snake, or elephant trunk snake (Acrochordus javanicus) at Reptile Gardens.
  • Colombian green jay or Inca jay (Cyanocorax yncas) at Parque Jaime Duque near Bogota, Colombia.
  • Photo: A coppery titi monkey (Callicebus cupreus) at the Denver Zoo.
  • Picture of a vulnerable (IUCN) and federally endangered female red-cockaded woodpecker (Picoides borealis) at Tall Timbers Research Station and Land Conservancy.
  • Photo: Black-collared hawk (Busarellus nigricollis) at the National Aviary of Colombia (Aviario Nacional de Colombia).
  • Colombian green jay or Inca jay (Cyanocorax yncas) at Parque Jaime Duque near Bogota, Colombia.
  • Photo: A Sechuran fox (Pseudalopex sechurae) at Parque Zoológico Huachipa in Lima, Peru.
  • A North American river otter (Lontra canadensis) at the Lincoln Children's Zoo, Lincoln, Nebraska.
  • Photo: A king ratsnake (Elaphe carinata) at the Dallas Zoo.
  • Picture of a superb lyrebird (Menura novaehollandiae) at Healesville Sanctuary.
  • Picture of an orange spotted filefish (Oxymonacanthus longirostris) at Omaha's Henry Doorly Zoo and Aquarium.
  • An Eastern mole (Scalopus aquaticus machrinoides) at the Wildlife Rescue Center of Minnesota.
  • Scheltopusik a type of legless lizard (Pseudopus apodus) at the Lincoln Children’s Zoo in Lincoln, Nebraska.
  • Picture of a male, vulnerable North Sulawesi babirusa (Babyrousa celebensis) at the LA Zoo.
  • Picture of a banded pitviper (Trimeresurus fasciatus) at the Dallas Zoo.
  • Picture of a Meller's chameleon (Trioceros melleri) named Petunia at the Dallas World Aquarium.
  • Photo: An endangered Nile lechwe (Kobus megaceros) at the Dallas Zoo.
  • Photo: A female brown eared pheasant (Crossoptilon mantchuricum) from a private collection.
  • Picture of a Scimitar-horned oryx (Oryx dammah) at Rolling Hills Zoo.
  • Goldstripe darter (Etheostoma parvipinne) at Conservation Fisheries, a native stream fish breeding center in Knoxville. This fish is not listed. Little is known about it.
  • Picture of a queen angelfish (Holacanthus ciliaris) at Pure Aquariums.
  • A Florida cooter (Pseudemys floridana) at the Chapultepec Zoo in Mexico City.
  • An endangered Santa Anna River woolystar (Eriastrum densifolium ssp. sanctorum) at the Santa Anna River, California. Shown on the plant is the common milkweed bug (Lygaeus kalmii).
  • A pair of vulnerable chinchillas (Chinchilla lanigera) at Zoo Atlanta.
  • Photo: A small Indian kite (Milvus migrans govinda) from the Assam State Zoo.
  • Photo: Orange-headed roach (Eublaberus posticus) at the Insectarium in New Orleans.
  • Photo: Two male purple martins (Progne subis subis) at Rogers Wildlife Rehabilitation in Hutchins, TX.
  • An African palm weevil (Rhynchophorus phoenicis) at Chitengo Camp in Gorongosa National Park.
  • Picture of an Ebenaui mantella (Mantella ebenaui) at the Sedgwick County Zoo.
  • Photo: Mountain caracara (Phalcoboenus megalopterus) at the Rome Zoo.
  • Photo: A greater short-toed lark (Calandrella brachydactyla longipennis) at Zoo Plzeň.
  • Bolkar viper (Montivipera bulgardaghica) at the St. Louis Zoo.
  • Photo: Red burrowing crayfish, Cambarus carolinus, at the Crayfish lab in West Liberty University in West Liberty, WV. This specimen is from the Saluda River System, SC.
  • Photo: A burrowing owl (Athene cunicularia cunicularia) at Unidad de Rehabilitación de Fauna Silvestre.
  • Photo: A cushion sea star (Culcita novaeguineae) at Semirara Marine Hatchery Laboratory in the Philippines.
  • Photo: Barred bichir (Polypterus delhezi) at the Moscow Zoo.
  • Picture of a grizzly bear (Ursus arctos horribilis) at the Sedgwick County Zoo.
  • A bontebok (Damaliscus pygargus dorcas) at the Gladys Porter Zoo in Brownsville, Texas.
  • A male house finch (Carpodacus mexicanus) at the Brown Ranch, Texas.
  • A marsupial frog (Gastrotheca pseustes) at a captive breeding at Pontificia Universidad Catolica in Quito, Ecuador. (IUCN: EN)
  • A Dekay's brownsnake (Storeria dekayi texana) collected from Nebraska.
  • Red-necked grebe (Podiceps grisegena grisegena) at Monticello Center in Italy.
  • Federally endangered woodland caribou (Rangifer tarandus caribou) named Costello. He is eight years old.
  • Picture of a whooping motmot (Momotus subrufescens) at the National Aviary breeding center in Palmar, Colombia.
  • Photo: A Gudalupe stick insect (Lamponius guerini) from the North Florida Wildlife Center.
  • Picture of a vulnerable South American red-footed tortoise (Geochelone carbonaria) at the Kansas City Zoo.
  • Photo: Cairns green birdwing (Ornithoptera priamus euphorion) at the Jumalon Butterfly Sanctuary on Cebu Island in the Philippines.
  • Photo: Southwestern speckled rattlesnake (Crotalus mitchellii pyrrhus) at the LA Zoo.
  • 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.
  • A millipede (Diplopoda sp.).
  • Photo: European yellow-bellied toad (Bombina variegata) at the Moscow Zoo.
  • A nutria (Myocastor coypus ) at the Omaha Zoo.
  • Photo: A female spot breasted woodpecker (Colaptes punctigula) at the National Aviary of Colombia.
  • Photo: Upland burrowing crayfish (Cambarus dubius) from the wild.
  • Photo: Barred surfperch (Amphistichus argenteus) at East Bay Regional Park District.
  • A Sandhill crane (Grus canadensis) at the Sutton Avian Research Center.
  • Picture of a greater flamingo (Phoenicopterus roseus) named Pauly, age 15, at the LA Zoo.
  • Two harlequin flower beetles (Gymnetis caseyi) at the Houston Zoo.
  • Photo: An unidentified cricket species at Fauna Andina, a conservation center near Villarrica, Chile.
  • Photo: A little brown mudbug, Cambarus thomai, wild caught near Sulphur Wells, Kentucky.
  • Picture of a red-fronted brown lemur (Eulemur rufifrons) at the Plzen Zoo in the Czech Republic.
  • A close up of a banded tree snail (Orthalicus floridensis) from Crocodile Lake National Wildlife Refuge on Key Largo.
  • 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: Maroon tailed parakeet (Pyrrhura melanura souancei) at Loro Parque Fundacion.
  • Photo: Onate bichir (Polypterus ornatipinnis) at the Budapest Zoo.
  • Mitchell’s lorikeet (Trichoglossus forsteni mitchellii) at the Plzen Zoo in the Czech Republic.
  • An endangered (IUCN) and federally endangered pygmy madtom (Noturus stanauli) at Conservation Fisheries. This stream fish is only found in the Clinch and Duck River drainages in Tennessee.
  • Photo: Spotted eagle owl (Bubo africanus) from Plzen Zoo in the Czech Republic.
  • Surinam toad (Pipa pipa) at the St. Louis Zoo.
  • Photo: Brimstone canary (Serinus sulphuratus) in Santa Cruz, Tenerife, Spain.
  • An endangered female Indian rhinoceros (Rhinoceros unicornis) at the Fort Worth Zoo.
  • A Northern greater galago (Otolemur garnettii) at the Cleveland Metroparks Zoo.
  • Photo: A juvenile common yellowthroat (Geothlypis trichas trichas) at Rum River Central Park.
  • Picture of two broad-headed skinks (Plestiodon laticeps) at the National Mississippi River Museum and Aquarium in Dubuque, Iowa.
  • A critically endangered Utila iguana (Ctenosaura bakeri) at the Miller Park Zoo in Bloomington, Illinois.
  • A pair of critically endangered (IUCN) and federally endangered panamanian golden frogs (Atelopus zeteki) at the Miller Park Zoo in Bloomington, Illinois. Shown is a female underneath a male in amplexus.
  • Indian tent turtle (Kachuga tentoria) at the Tennessee Aquarium.
  • A critically endangered (IUCN) and federally endangered female Sumatran tiger and her two, five-month-old cubs (Panthera tigris sumatrae) at Zoo Atlanta.
  • Picture of an endangered Cauca guan (Penelope perspicax) at the Cali Zoo in Colombia.
  • Photo: Sweetie a Barred rock hen chickens at the Soukup Farm.
  • A Calabar python (Calabaria reinhardtii) at the Columbus Zoo.
  • A compton tortoiseshell butterfly (Nymphalis vaualbum) from Cross Lake, Minnesota.
  • Photo: An unidentified ground beetle species at Fauna Andina, a conservation center near Villarrica, Chile.
  • Photo: A Gordon's wildcat (Felis lybica gordoni) at Zoopark Zajezd.
  • A lark sparrow (Chondestes grammacus) at the Brown Ranch, Texas.
  • A banded rubber frog (Phrynomantis bifasciatus) at Reptile Gardens.
  • A Chilean rose tarantula (Grammostola rosea) at the Lincoln Children’s Zoo.
  • Picture of a critically endangered (IUCN) and federally endangered Siberian crane (Grus leucogeranus) at the Tulsa Zoo.
  • Picture of a female Bewick's swan, Cygnus columbianus bewickii, at Sylvan Heights Bird Park.
  • Picture of a thinstripe hermit crab (Clibanarius vittatus) at Gulf Specimen Marine Lab and Aquarium.
  • Photo: An Eastern redbelly turtle (Pseudemys rubriventris) at the Estuarium in Dauphin Island, AL.
  • Photo: A critically endangered Rameshwaram ornamental spider (Poecilotheria hanumavilasumica) at the Toronto Zoo.
  • A velvet ant (Dasymutilla sp.) at the Lowry Park Zoo in Tampa, FL. This is actually a type of wasp that has a really painful sting.
  • Photo: Western lesser siren (Siren intermedia nettingi) at the Conservation Department of the San Antonio Zoo.
  • Photo: Anaimalai spiny lizard (Salea anamallayana) at Urban Ark Conservation
  • Photo: Blue catfish (Neoarius graeffei) at the Freshwater Ecology and Marine Biology Dept. at Templestowe College.
  • An endangered (IUCN) Golfodulcean poison frog (Phyllobates vittatus) from a private collection.
  • Photo: Stirlings turtle (Elseya stirlingi) from Turtles Australia
  • Photo: Ground gecko (Dixonius sp. nov) at the Angkor Centre for Conservation of Biodiversity (ACCB) in Siem Reap, Cambodia.
  • Photo: Tulip shell (Fasciolaria tulipa), with eggs from Gulf Specimen Marine Laboratories.
  • Photo: Iberian gudgeon (Gobio lozanoi) at the Environmental Education Center of the Ribeiras de Gaia.
  • Picture of a Bobcat (Lynx rufus) named Keta at the Miller Park Zoo.
  • Photo: A South American fur seal (Arctocephalus australis) named Eddy at Buin Marino.
  • Kihansi spray toad (Nectophrynoides asperginis), an amphibian from Tanzania, at the Toledo Zoo. (IUCN: Extinct in the wild) .
  • Picture of a common bamboo viper (Trimeresurus elegans) at the Dallas Zoo.
  • Picture of a Siamese fireback pheasant (Lophura diardi) at Pheasant Heaven, a private pheasant breeding center near Clinton, NC.
  • Photo: A purple vampire crab (Geosesarma dennerle) at Petra Aqua.
  • Photo: A ring-tailed mongoose (Galidia elegans) at the Plzen Zoo in the Czech Republic.
  • Photo: Green rumped parrotlet (Forpus passerinus deliciosus) at Loro Parque Fundacion.
  • Photo: A white crappie (Pomosus annularis) at the Oklahoma City Zoo.
  • Red-sided eclectus parrots or New Guinea eclectus (Eclectus roratus polychloros) at Parrots in Paradise, a bird attraction in Glass House Mountains, Queensland.
  • A critically endangered (IUCN) and federally endangered Cuban crocodile (Crocodylus rhombifer).
  • Photo: A swan goose (Anser cygnoides) at the Miller Park Zoo. This species is listed as vulnerable on the IUCN Red List.
  • Photo: Cane beetle (Dermolepida alborhitum) at Crocolandia in the Philippines.
  • Picture of endangered (IUCN) and federally endangered Francois langurs (Trachypithecus francoisi) at the Omaha Zoo
  • Photo: Mountain patch-nosed snake (Salvadora grahamiae grahamiae) at the Phoenix Zoo.
  • Picture of a vulnerable secretary bird (Sagittarius serpentarius) at the Toronto Zoo.
  • Photo: Tungara frog (Engystomops pustulosus) from the wild in Gamboa, Panama.
  • Picture of common dwarf mongooses (Helogale parvula) at the Omaha Henry Doorly Zoo.
  • Photo: Eurasian hawk owl (Surnia ulula ulula) at Wroclaw Zoo.
  • Photo: Two burnished-buff tanager (Tangara cayana) at Zoopark Zajezd.
  • Picture of a Hosmer's spiny-tailed skink (Egernia hosmeri) at Wild Life Sydney Zoo.
  • Picture of a green kingfisher (Chloroceryle americana cabanisii) at the National Aviary of Colombia.
  • Photo: A juvenile male giant stick insect (Spinohirasea bengalensis) at the Moscow Zoo.
  • Smooth-sided toad (Rhaebo guttatus) at the National Aquarium in Baltimore.
  • Photo: A male guiña (Leopardus guigna guigna) from Fauna Andina in central-south, Chile.
  • Photo: An endangered Higgins eye pearly mussel (Lampsilis higginsii) at the Genoa National Fish Hatchery, Genoa, Wisconsin.
  • Photo: A common wall gecko (Tarentola mauritanica mauritanica) at Centro Fauna Selvatica "Il Pettirosso".
  • An endangered robber frog (Eleutherodactylus eugeniae) near Mindo, Ecuador.
  • Photo: An arcuate horseshoe bat (Rhinolophus arcuatus) at the University of the Philippines.
  • Picture of a tocuyo sparrow (Arremonops tocuyensis) at the National Aviary of Colombia.
  • A meadow vole (Microtus pennsylvanicus pennsylvanicus) from Watertown, New York.
  • Photo: Terrestrial garter snake (Thamnophis elegans) collected in South Dakota.
  • Picture of a Pacific black duck (Anas superciliosa) at Sylvan Heights Bird Park.
  • Photo: A palm tree frog (Boana pellucens) at Balsa de los Sapos.
  • Photo: The feet of a white bellied sea eagle (Haliaeetus leucogaster) at the Jurong Bird Park.
  • Picture of a yellow stingray (Urobatis jamaicensis) at Omaha's Henry Doorly Zoo and Aquarium.
  • Photo: Lesser blue crab, Callinectes similis, at Gulf Specimen Marine Lab in Panacea, FL.
  • Photo: A white-speckled treefrog (Hyloscirtus albopunctulatus) at Balsa de los Sapos.
  • Photo: An Asian leopard cat (Prionailurus bengalensis bengalensis) at the Angkor Centre for Conservation of Biodiversity (ACCB) in Siem Reap, Cambodia.
  • Photo: A Mindanao warty pig (Sus philippensis mindanensis) at Davao Crocodile Park.
  • A federally threatened federally threatened Northern spotted owl (Strix occidentalis caurina) named Opal.
  • Photo: An azure jay (Cyanocorax coeruleus) at BioParque do Rio.
  • Photo: Kissing gourami (Helostoma temminckii) at Zoo Negara.
  • Photo: Juvenile javelina (Pecari tajacu) at Southwest Wildlife Conservation Center.
  • Photo: Carpenter ant (Camponotus pennsylvanicus) at the Audubon Insectarium.
  • Picture of a panther chameleon (Furcifer pardalis) at the Lincoln Children's Zoo.
  • Photo: Hispid pocket mouse (Chaetodipus hispidus) at Cedar Point Biological Station.
  • Photo: Brown woolly monkey (Lagothrix lagothricha lagothricha) at Piscilago.
  • Photo: A nose-horned chameleon (Calumma nasutum) in Madagascar.
  • Picture of a Texas coral snake (Micrurus tener) at the Houston Zoo, Houston, Texas.
  • Spring peeper (Pseudacris c. crucifer) at the National Aquarium in Baltimore.
  • A three-month-old caracal (Caracal caracal) at the Columbus Zoo.
  • Andean marsupial tree frog (Gastrotheca rhiombabae) at the Omaha Zoo.
  • Picture of a green pygmy goose (Nettapus pulchellus) from Sylvan Heights Waterfowl Park.
  • Federally endangered woodland caribou (Rangifer tarandus caribou) named Costello. He is eight years old.
  • Picture of Trinidadian guppies (Poecilia reticulata) at the Tulsa Zoo.
  • Photo: A Northern pufferfish (Sphoeroides maculatus) at the Virginia Aquarium.
  • Photo: A Boehme's giant day gecko (Phelsuma madagascariensis boehmei) at the Plzen Zoo.
  • A giant horned lizard (Phrynosoma asio) at the LA Zoo.
  • Photo: A Cuban tree frog (Osteopilus septentrionalis) at the Kansas City Zoo.
  • Photo: Sterba's corydoras (Corydoras sterbai) from a private collection.
  • Picture of a critically endangered blue-eyed black lemur (Eulemur flavifrons) named "Poots" at the Duke Lemur Center.
  • A Sandhill crane (Grus canadensis) at the Sutton Avian Research Center.
  • Picture of a giant cave gecko (Pseudothecadactylus lindneri) at the Wild Life Sydney Zoo.
  • Photo: A chestnut-bellied seed finch (Sporophila angolensis torrida) at Cetas-Ibama in Brazil, a wildlife rehab center in Manaus, Brazil.
  • Picture of a red-lipped arboreal alligator lizard (Abronia lythrochila) at the Saint Louis Zoo.
  • Photo: A captive critically endangered (IUCN) and federally endangered California condor (Gymnogyps californianus) at the Phoenix Zoo.
  • Picture of a vulnerable emperor tamarin (Saginus imperator) at the Riverside Zoo.
  • Photo: Abert's squirrel or tassel-eared squirrel (Sciurus aberti) at Liberty Wildlife.
  • Picture of a white-winged duck (Asarcornis scutulata) at the Omaha Henry Doorly Zoo.
  • An endangered (IUCN) and federally threatened peaks of otter salamander (Plethodon hubrichti) from a private collection.
  • Photo: Tenebrosus pheasant (Phasianus colchicus var. (mut.) tenebrosus, at Padmaja Naidu Himalayan Zoological Park.
  • Photo: A ridged cactus coral (Mycetophyllia lamarckiana) at Riverbanks Zoo and Garden.
  • Photo: (Kryptopterus lais) at Zoo Negara.
  • A coyote (Canis latrans) at the Great Plains Zoo.
  • Picture of a South Island pied oystercatcher (Haematopus finschi) at the Kiwi Birdlife Park in Queenstown, New Zealand.
  • 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 vulnerable four-toed jerboa (Allactaga tetradactyla) at the Plzen Zoo in the Czech Republic.
  • Picture of a satin bowerbird (Ptilonorhynchus violaceus) at Healesville Sanctuary.
  • Picture of a vulnerable adult female white bellied pangolin (Phataginus tricuspis) with her baby, part of Pangolin Conservation, a non-profit organization in Saint Augustine, Florida.
  • Photo: A Richardson's cackling goose (Branta hutchinsii hutchinsii) at WWT Slimbridge in England.
  • Photo: A large fig parrot (Psittaculirostris desmarestii desmarestii) at the Prague Zoo.
  • Photo: Western coachwhip (Masticophis flagellum) collected in Chase County, Nebraska.
  • A North American river otter (Lontra canadensis) at the Lincoln Children's Zoo, Lincoln, Nebraska.
  • An endangered Coquerel's sifaka (Propithecus coquereli) at the Houston Zoo.
  • Photo: A prairie rattlesnake (Crotalus viridis viridis) at Reptile Gardens.
  • Photo: A brown trout (Salmo trutta morpha), wild caught on the Clark Fork River near Noxon, Montana.
  • Cope's gray tree frog (Hyla chrysoscelis) at the Detroit Zoo.
  • Photo: Orange-barred sulphur (Phoebis philea philea) in Gamboa, Panama.
  • Osage copperhead (Agkistrodon contortrix phaeogaster) at the Tulsa Zoo.
  • Photo: Large North African gerbil (Gerbillus campestris) at Wroclaw Zoo in Poland.
  • Photo: Long-snouted seahorse (Hippocampus guttulatus) at the Lisbon Aquarium.
  • Photo: A red abalone (Haliotis refescens) at the Monterey Bay Aquarium.
  • Photo: White-tailed sea-eagle (Haliaeetus albicilla) at the Plzen Zoo in the Czech Republic.
  • Photo: Carunculated caracara (Phalcoboenus carunculatus) at Parque Jaime Duque near Bogota, Colombia.
  • A Western slimy salamander (Plethodon glutinosus grobmani) from a private collection.
  • A common yellowthroat (Geothlypis trichas) at the Kissimmee Prairie Preserve State Park in Okeechobee, Florida.
  • 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.
  • Picture of a purple sand dollar (Encope michelini) at Gulf Specimen Marine Lab and Aquarium.
  • Picture of a red solitary sea squirt (Polycarpa circumarata) at Gulf Specimen Marine Lab and Aquarium.
  • A green tree python (Morelia viridis) at the St. Louis Zoo.
  • Photo: A striped hyena (Hyaena hyaena) at the Assam State Zoo cum Botanical Garden.
  • A red bird-of-paradise (Paradisaea rubra) at the Houston Zoo. Listed as near threatened on IUCN.
  • Photo: Federally endangered Oasis Valley speckled dace (Rhinichthys osculus nevadensis) at Ash Meadows National Wildlife Refuge in NV.
  • Photo: Common bluebottle (Graphium sarpedon luctatius) at Malacca Butterfly and Reptile Sanctuary.
  • Photo: Maroon shining parrot, Prosopeia tabuensis tabuensis, at Loro Parque Fundacion.
  • Photo: A tarantula (Harpactira dictator) from a private collection.
  • Picture of a vulnerable hispaniolan amazon or parrot (Amazona ventralis) at the Knoxville Zoo in Knoxville, Tennessee.
  • Federally endangered Iowa Pleistocene Snails, Discus macclintocki.
  • Photo: A Doris longwing (Heliconius doris) at the Omaha Zoo.
  • Picture of a vulnerable Chinese softshell turtle (Pelodiscus sinensis) from the Turtle Conservation Center in Cuc Phuong National Park, Vietnam.
  • Photo: A domestic chicken (Gallus gallus domesticus) in Lincoln, Nebraska.
  • A mudskipper (Periophthalmus sp.) on Bioko Island, Equatorial Guinea.
  • Photo: A Salvadori’s pheasant (Lophura inornata inornata) at Prague Zoo. This species is listed as near threatened on IUCN’s red list.
  • Picture of a blue-banded toucanet (Aulacorhynchus coeruleicinctis) at the Dallas World Aquarium.
  • Photo: Walking stick (Lonchodiodes jeloces) at the Moscow Zoo.
  • Photo: A Senegal thick-knee (Burhinus senegalensis) at Sylvan Heights Bird Park in Scotland Neck, North Carolina.
  • Photo: Golden birdwing (Troides rhadamantus rhadamantus) at Crocolandia in the Philippines.
  • A lavender guineafowl (Numida meleagris) at the Cleveland Metroparks Zoo.
  • Big-headed rainfrog or big-headed robber frog (Craugastor megacephalus) at Zoo Atlanta. This species is primarily from Panama.
  • Photo: Malaysian orange huntsman spider, often called the David Bowie spider (Heteropoda davidbowie) from a private collection.
  • Photo: Brazil poison frog (Ranitomeya vanzolinii) from a private collection.
  • A vulnerable black and rufous elephant shrew (Rhynchocyon petersi) named Beast, at the Omaha Zoo.
  • Photo: Barren River crayfish, Faxonius barrenensis, at the Crayfish lab in West Liberty University in West Liberty, WV. This specimen is from the Barren River, KY.
  • Photo: A heart crab (Phyllolithodes papillosus) at the Alaska SeaLife Center.
  • Nene geese (Branta sandvicensis) at the Great Plains Zoo, Sioux Falls, South Dakota. (IUCN: Vulnerable; US: Endangered)
  • Picture of a giant red hermit crab (Petrochirus diogenes) in a manmade glass shell at Gulf Specimen Marine Lab.
  • Picture of a federally endangered poweshiek skipperling (Oarisma poweshiek) at the Minnesota Zoo.
  • A king cobra (Ophiophagus hannah) at Reptile Gardens.
  • Photo: Nymph of the thorny walking stick (Trachyaretaon brueckneri) at the Exmoor Zoo.
  • A male eastern bongo (Tragelaphus eurycerus isaaci) at the Great Plains Zoo.
  • An endangered (IUCN) and federally endangered giant panda (Ailuropoda melanoleuca) at Zoo Atlanta.
  • Photo: Tire track snail or red nerite snail (Vittina waigiensis) from a private collection.
  • Photo: A spotted whip snake (Hemorrhois ravergieri) at Prague Zoo.
  • Photo: An endangered keeled box turtle (Cuora mouhotii) in an ivory color phase.
  • Photo: A violet necked lory (Eos squamata riciniata) at Loro Parque Fundacion.
  • Photo: A juvenile pantano cichlid (Cincelichthys pearsei) at the Denver Zoo.
  • A Congo caecilian (Herpele squalostoma) at the Sedgwick County Zoo.
  • Photo: A coati (Nasua nasua montana) at Parque de las Leyendas in Lima, Peru.
  • Photo: A husky-voiced wrinkled ground frog (Platymantis mimulus) at the University of the Philippines.
  • The foot of a Mertens' water monitor (Varanus mertensi) at the Omaha Zoo.
  • Photo: Western girdled lizard, Zonosaurus laticaudatus, at the Plzen Zoo.
  • Photo: Red-flanked duiker (Cephalophus rufilatus) at the Kansas City Zoo.
  • Picture of a common waxbill (Estrilda astrild) from a private collection.
  • Photo: A bearded pygmy chameleon, Rhampholeon brevicaudata, at the Sedgwick County Zoo.
  • A half-day-old hatchling leatherback turtle (Dermochelys coriacea) from Bioko Island. (IUCN: Critically Endangered, US: Endangered)
  • The inferalanis morph of the dyeing dart frog (Dendrobates tinctorius) at the Atlanta Botanical Garden.
  • Eastern coral snake (Micrurus fulvius fulvius) at the Riverbanks Zoo.
  • A Reisinger's tree monitor (Varanus reisingeri) at the Fort Worth Zoo.
  • Photo: A female peaceful betta (Betta imbellis) from a private collection in St. Augustine, Florida.
  • Picture of a Northern cleaner shrimp (Lysmata amboinensis) at Pure Aquariums.
  • Photo: Paintedhand mudbug (Cambarus polychromatus) from the wild.
  • Picture of a vulnerable Victoria crowned pigeon (Goura victoria) at the Columbus Zoo.
  • Photo: Forest giant pouched rat (Cricetomys emini) at the Plzen Zoo in the Czech Republic.
  • An Australian barn-owl (Tyto alba delicatula) at Healesville Sanctuary.
  • 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.
  • A critically endangered (IUCN) and federally endangered juvenile addax (Addax nasomaculatus) at the Buffalo Zoo.
  • Photo: Two critically endangered Madagascar pochard, Aythya innotata, at the Pochard Captive Breeding Center in Antsohihy, Madagascar.
  • Photo: A lesser-striped swallow (Hirundo abyssinica) collected at Camp Chitengo in Gorongosa National Park.
  • A blue-sided garter snake (Thamnophis similis similis) at the Lowry Park Zoo in Tampa, FL.
  • Photo: An European barn owl (Tyto alba alba) at Parco Natura Viva in Bussolengo, Italy.
  • Photo: A male southern yellow-billed hornbill (Tockus leucomelas) at the Dallas World Aquarium.
  • A Pacific treefrog (Pseudacris regilla) at the Fresno Chaffe Zoo.
  • Northern leopard frog (Lithobates (Rana) pipiens) at the Toledo Zoo.
  • A desert kangaroo rat (Dipodomys deserti) at Omaha's Henry Doorly Zoo and Aquarium.
  • A red shouldered macaw (Diopsittaca nobilis nobilis) at the Jurong Bird Park.
  • Photo: A critically endangered pied tamarin (Saguinus bicolor) at Cetas-IBAMA, a wildlife rehab center in Manaus, Brazil.
  • Picture of a male redhead duck (Aythya americana) at the Sylvan Heights Bird Park
  • Photo: Mesic four striped grass mouse (Rhabdomys dilectus) at the Plzen Zoo in the Czech Republic.
  • Photo: Saffron finches (Sicalis flaveola brasiliensis) at the Membeca Lagos Farm, near Rio de Janeiro, Brazil.
  • Picture of butterfly splitfin (Ameca splendens) at the Tulsa Zoo. This species is extinct in the wild.
  • Photo: A zebra plecostomus catfish (Hypancistrus zebra) at the aquarium of the Manaus Zoo.
  • Photo: An Okavango mud turtle (Pelusios bechuanicus) from a private collection.
  • A sugar ant (Camponotus sp.) insect from the wild in Cameroon.
  • Photo: An Eastern Montpellier snake (Malpolon insignitus) at Prague Zoo.
  • Photo: A male Khivan pheasant (Phasianus colchicus chrysomelas) at the Plzen Zoo.
  • An eyelash frog or Solomon island leaf frog (Ceratobatrachus guentheri) at Omaha's Henry Doorly Zoo.
  • An African wild cat (Felis silvestris lybica) at Omaha Zoo's Lee G. Simmons Conservation Park and Wildlife Safari.
  • Photo: A wild caught Katydid in Andasibe, Madagascar.
  • Palm tanager (Thraupis palmarum melanoptera) at the National Aviary of Colombia (Aviario Nacional de Colombia).
  • Photo: Brown necked parrots (Poicephalus fuscicollis fuscicollis) at Loro Parque Fundacion.
  • Photo: A critically endangered nsess (Stomatepia mariae) at Moscow Zoo.
  • Photo: Darkling beetle (Eleodes suturalis) at Cedar Point Biological Station.
  • Photo: Blue dasher (Pachydiplax longipennis) at the Trinity Western University.
  • Photo: Razor-billed curassow (MItu tuberosum) at Melbourne Zoo.
  • Photo: A green twinspot (Mandingoa nitidula) at the Zoo Berlin.
  • Yellowfin madtoms (Noturus flavipinnis) a vulnerable (IUCN) and federally threatened species at Conservation Fisheries, a native stream fish breeding center.
  • A red-legged brown dart frog or rainforest rocket frog (Silverstoneia flotator) at the National Aquarium in Baltimore.
  • Photo: A Chukar partridge (Alectoris chukar cypriotes) at the Plzen Zoo.
  • A North American river otter (Lontra canadensis) at the Lincoln Children's Zoo, Lincoln, Nebraska.
  • Photo: A female rhinoceros beetle (Golofa pelagon) at Museo De Historia Natural "Alcide d'Orbigny".
  • A lake sturgeon (Acipenser fulvescens) at the Genoa National Fish Hatchery.
  • Photo: A fatmucket (Lampsilis siliquoidea) at the Center for Aquatic Mollusk Programs in Lake City, Minnesota.
  • Photo: A red-billed blue magpie (Urocissa erythrorhyncha magnirostris) from a private collection in Choussy, France.
  • An endangered, mint morph, male terrible poison dart frog (Phyllobates terribilis) from a private collection. The male carries several tadpoles on his back. In the wild, males carry tadpoles to places where they can grow protected from predators. Often, they use the pools of water that collect in bromeliad plants, high in trees.
  • A razorback sucker (Xyrauchen texanus), from the Colorado River System. (US: Endangered; IUCN: Critically endangered)
  • Photo: A black Cameroon train millipede (Mardonius parilis acuticonus) at Aquarium Berlin.
  • Photo: A male archduke (Lexias pardalis dirteana) at Malacca Butterfly and Reptile Sanctuary.
  • Photo: A antennata lionfish (Pterois antennata) at the Dallas Children's Aquarium.
  • A metallic green bee (Agapostemon virescens), which along with other bee species is a locally important pollinator of field crops.
  • Picture of two red-knobbed imperial pigeons (Ducula rubricera) at the Houston Zoo.
  • Photo: Green-backed trogon (Trogon viridis) at the Dallas World Aquarium.
  • Photo: Waved sphinx moth (Ceratomia undulosa) at Cedar Point Biological Station.
  • Picture of a Lord Derby's parakeet (Psittacula derbiana) at the Wellington Zoo.
  • A white rhinoceros (Ceratotherium simum simum) at Rolling Hills Wildlife Adventure in Salina, Kansas.
  • A ruby-throated hummingbird (Archilochus colubris).
  • Picture of a male Mountain goat (Oreamnos americanus) at the Cheyenne Mountain Zoo.
  • A juvenile green rat snake (Senticolis triaspis) at the Arizona-Sonora Desert Museum.
  • Photo: A Club tail iguana (Ctenosaura quinquecarinata) at Prague Zoo.
  • Photo: A western slender glass lizard (Ophisaurus attenuatus) at the Sunset Zoo in Manhattan, Kansas.
  • Photo: Otto catfish (Otocinclus affinis) from a private collection.
  • Picture of a longnose hawkfish (Oxycirrhites typus) at Pure Aquariums.
  • Photo: A fireball lily (Scadoxus cinnabarinus) from Bioko Island, Equatorial Guinea.
  • Picture of a sanderling (Calidris alba) at the Monterey Bay Aquarium.
  • A emperor tamarin (Saguinus imperator imperator) at the Dallas World Aquarium.
  • Photo: A whitefin shiner (Cyprinella nivea) from a private collection in Knoxville, Tennessee.
  • An annulated boa (Corallus blombergi) at the Knoxville Zoo.
  • Photo: Sergeant major or p’ntano (Abudefduf saxatilis) at the Albuquerque BioPark Aquarium.
  • Picture of a sara longwing (Heliconius sara sara) at the Saint Louis Zoo.
  • Photo: A female brown eared pheasant (Crossoptilon mantchuricum) from a private collection.
  • Photo: A silver carp (Hypophthalmichthys molitrix) at the Schramm Education Center near Gretna, NE.
  • Picture of a tadpole madtom (Noturus gyrinus) from the Suwannee River, Florida, at the US Geological Survey Southeast Science Center.
  • Picture of a vulnerable Malayan box turtle (Cuora amboinensis) at the Assam State Zoo cum Botanical Garden.
  • Photo: Great horned baboon (Ceratogyrus marshalli) at Museum of Nature South Tyrol.
  • Photo: Ocellated kribensis (Pelvicachromis subocellatus) (wild from Gabon, Nyanga river) at L'aquarium tropical du palais de la Porte DorŽe.
  • Photo: An Asian painted frog, or chubby frog (Kaloula pulchra) from the Fish N Stuff pet store in Yankton.
  • A vulnerable (IUCN) and federally threatened Arizona desert tortoise (Gopherus agassizii) at the Rolling Hills Wildlife Adventure.
  • Picture of Dali, an endangered female great green macaw (Ara ambiguus) at Tracy Aviary.
  • Photo: Striped legless lizard (Delma impar) at Moonlit Sanctuary
  • Picture of a Colombian color morph of a harlequin poison frog (Oophaga histrionica) at the Cali Zoo.
  • Photo: Little blue heron (Florida caerulea) at the National Aviary of Colombia.
  • Photo: European honey buzzard (Pernis apivorus) from the Budapest Zoo.
  • Photo: A lineated barbet (Megalaima lineata) at the Jurong Bird Park.
  • Quince's monitor (Varanus melinus) at the Omaha Zoo.
  • Picture of a Cutthroat trout (Oncorhynchus clarkii) at the Loveland Living Planet Aquarium.
  • Picture of a northern shoveler (Anas clypeata) at the Sylvan Heights Bird Park.
  • Photo: A yellow or eastern mantella (Mantella crocea) at the National Mississippi River Museum and Aquarium in Dubuque, IA.
  • Picture of a grass rockfish (Sebastes rastrelliger) at the REEF, at the University of California, Santa Barbara.
  • A spotfin shiner (Cyprinella spiloptera).
  • Photo: A desert king snake (Lampropeltis getula splendida) from a private collection.
  • Picture of a critically endangered Kakapo (Strigops habroptilus) at Zealandia, in Wellington, New Zealand.
  • Photo: A greenbreast darter (Etheostoma jordani) collected in the Conasauga River near Conasauga, Tennessee.
  • Picture of a Yuma myotis (Myotis yumanensis) at Northwest Trek Wildlife Park in Eatonville, Washington.
  • Photo: A rhinoceros viper (Bitis nasicornis) at Reptile Gardens.
  • Picture of a Halmahera python (Morelia tracyae) at the Oklahoma City Zoo.
  • Picture of a lesser snow goose (Chen caerulescens caerulescens).
  • Photo: A western burrowing owl (Athene cunicularia hypugaea) at Wild At Heart in AZ.
  • A black crested mangabey (Lophocebus aterrimus) at the Chattanooga Zoo.
  • Picture of an Aleutian cackling goose, Branta hutchinsii leucopareia, at Sylvan Heights Bird Park.
  • A juvenile red rat snake (Elaphe guttata) at the Archbold Biological Station.
  • Critically endangered (IUCN) and federally endangered Panamanian golden frogs (Atelopus zeteki) in amplexus (in which the male rides the female prior to breeding) at Riverbanks Zoo.
  • Fischer's chameleon (Kinyongia fischeri) at the Omaha Zoo.
  • Picture of a Jazzy leafwing (Hypna clytemnestra) at the Saint Louis Zoo.
  • Photo: A juvenile white tailed kite (Elanus leucurus) at the University of California, Davis California Raptor Center.
  • A captive, five-month-old mandrill (Mandrillus sphinx) in Malabo, Equatorial Guinea. (IUCN: Vulnerable)
  • Photo: Mexican kingsnake (Lampropeltis ruthveni) at the Budapest Zoo.
  • Photo: Greyish saltator (Saltator coerulescens) at the National Aviary of Colombia (Aviario Nacional de Colombia).
  • Photo: A Cameroon dark stripe snail (Limicolaria numidica) at Aquarium Berlin.
  • Photo: An ornate hawk eagle (Spizaetus ornatus vicarious) at SIA, the Comanche Nation Ethno-Ornithological Initiative.
  • Picture of a Madagascar tree boa (Sanzinia madagascariensis) at the Dallas World Aquarium.
  • Photo: A red squirrel (Sciurus vulgaris fuscoater) at Zoopark Zajezd.
  • Photo: A Peru mushroom tongue salamander (Bolitoglossa peruviana) at Centro Jambatu in Quito, Ecuador.
  • A gopher tortoise (Gopherus polyphemus) a vulnerable (IUCN) and federally threatened species at Zoo Atlanta.
  • Photo: A big polyp blastomussa coral (Blastomussa wellsi) at the Akron Zoo.
  • A yellow-faced bumblebee (Bombus vosnesenskii) at A Rocha Brooksdale Environmental Center in Surrey, BC.
  • Picture of a federally endangered Andean condor (Vultur gryphus) at the Lowry Park Zoo.
  • Photo: Mediterranean snakelocks sea anemone (Anemonia sulcata) at the Lisbon Aquarium,
  • Picture of male and female cut-throat finches (Amadina fasciata) at the Tulsa Zoo. The male has red on his throat.
  • Photo: Eurasian pond turtle (Mauremys rivulata) at the Plzen Zoo in the Czech Republic.
  • A golden eagle (Aquila chrysaetos candensis) at Tracy Aviary.
  • Picture of a male and female Himalayan Monal (Lophophorus impejanus) at the Santa Barbara Zoo.
  • Picture of an emerald tree skink (Lamprolepis smaragdina) at the Virginia Zoo.
  • Photo: Warm Springs pupfish (Cyprinodon nevadensis pectoralis) at Ash Meadows National Wildlife Refuge near Pahrump, NV. This species is listed as vulnerable on IUCN's red list.
  • Photo: Four longfin inshore squid (Doryteuthis pealeii) at the Maine State Aquarium in West Boothbay, ME.
  • Photo: A blossom headed parakeet (Psittacula roseata roseata) at Loro Parque Fundacion.
  • Picture of a longspined porcupinefish also known as a freckled porcupinefish or Porcupine pufferfish (Diodon holocanthus) at the Nebraska Aquatic Supply.
  • Picture of a lagoon triggerfish (Rhinecanthus aculeatus) at Pure Aquariums.
  • Picture of an endangered Alabama waterdog (Necturus alabamensis) at the Cincinnati Zoo.
  • Photo: A wonderful crayfish (Faxonius mirus) collected near Flint River, Alabama, by the West Liberty University Crayfish Conservation Lab.
  • A crevice spiny lizard (Sceloporus poinsetti) at Rolling Hills Wildlife Adventure near Salina, Kansas.
  • Photo: A coosa darter (Etheostoma coosae) photographed at the Alabama Aquatic Biodiversity Center in Marion, AL. This fish was collected from Walnut Creek in Chilton County, AL.
  • A Brazilian porcupine (Coendou prehensilis) at the Denver Zoo, Denver, Colorado.
  • Photo: An Asian painted frog, or chubby frog (Kaloula pulchra) from the Fish N Stuff pet store in Yankton.
  • Picture of Australian wood ducks (Chenonetta jubata) at Sylvan Heights Bird Park.
  • Photo: A stick insect (Orthomeria kangi) at the University of the Philippines.
  • Photo: Gecko (Gekko vittatus) at Wroclaw Zoo.
  • A Congo dwarf clawed frog (Hymenochirus boettgeri) at the Vancouver Aquarium.
  • Photo: A magnificent chromodoris (Chromodoris magnifica) at Semirara Marine Hatchery Laboratory in the Philippines.
  • Photo: Cooper creek turtle (Emydura macquarii emmotti) at Templestowe College
  • Photo: An undescribed thickskin cichlid (Haplochromis species # 44) from a private collection.
  • Photo: A Daubenton's bat (Myotis daubentonii) at Hessilhead Wildlife Rescue.
  • Studio portrait of a red knot (Calidris canutus). The species is a candidate for listing under the Endangered Species Act due to a rapid decline in population. It is on one food during it's northward migration: horseshoe crab eggs. Overfishing of the crabs has led a dramatic the decline of both knots and crabs.
  • Photo: Two western burrowing owls (Athene cunicularia hypugaea) at Wild At Heart in AZ.
  • One-spotted prepona (Archaeoprepona demophon) at the San Antonio Zoo.
  • Photo: A Equatorial spitting cobra (Naja sumatrana miolepis) at the Avilon Zoo.
  • A musk ox (Ovibos moschatus moschatus) at the University of Alaska in Fairbanks, AK.
  • Photo: Greater dwarf lemur (Cheirogaleus major) at the Parc Botanique Et Zoologique de Tsimbazaza.
  • A goldenrod crab spider (Misumena vatia) devours a grasshopper found at Spring Creek Prairie.
  • Picture of a western mud snake (Farancia abacura reinwardtii) at the Oklahoma City Zoo.
  • A critically endangered (IUCN) and federally endangered Cuban crocodile (Crocodylus rhombifer).
  • Photo: A giraffe cichlid (Haplochromis venustus) at the Medicine Park Aquarium and Natural Sciences Center in Medicine Park, OK.
  • An endangered (IUCN) and federally endangered red-browed Amazon parrot (Amazona rhodocorytha) at the Rare Species Conservatory Foundation. The Conservatory Foundation has 55 individuals, and has the only population of this species in North America. This species is listed as endangered and is found in what's left of the coastal Atlantic forest of Brazil.
  • A vulnerable (IUCN) and federally endangered California tiger salamander (Ambystoma californiense) at the Fresno Cahffee Zoo, Fresno, California.
  • Scheltopusik a type of legless lizard (Pseudopus apodus) at the Lincoln Children’s Zoo in Lincoln, Nebraska.
  • Picture of a banded archerfish (Toxotes jaculatrix) at the Oklahoma City Zoo.
  • An endangered African white-backed vulture (Gyps africanus) at the Cleveland Metroparks Zoo.
  • Photo: Dusky turtle dove (Streptopelia lugens) in Choussy, France.
  • Photo: Savannah darters (Etheostoma fricksium) from a private collection in Knoxville, Tennessee.
  • Photo: A scorpion mud turtle (Kinosternon scorpiodes) at the Chapultepec Zoo in Mexico City.
  • Picture of an Australian brush-turkey (Alectura lathami) at Sylvan Heights Bird Park.
  • Photo: A Verreaux’s eagle (Aquila verreauxii) at Sia, the Comanche Nation Ethno-Ornithological Initiative.
  • Photo: An immature (first year) Baltimore oriole (Icterus galbula) at Rogers Wildlife Rehabilitation Center.
  • Photo: Central Stoneroller (Campostoma anomalum) collected from Big Darby Creek near Circleville, OH.
  • A smooth green snake (Opheodrys vernalis) collected in Virginia.
  • Photo: A cascabel (Crotalus terrificus) at Reptile Gardens.
  • Photo: Autumn leaf (Doleschallia bisaltide bisaltide) at Malacca Butterfly and Reptile Sanctuary.
  • Photo: A pygmy marbled newt (Triturus pygmaeus) at WWT Slimbridge in England.
  • Picture of a five striped surge wrasse (Thalassoma quinquevittatum) at Pure Aquariums.
  • A male Edward's pheasant (Lophura edwardsi) at the Jurong Bird Park. Formerly: Vietnamese pheasnt (Lophura hatinhensis).
  • Picture of a female village weaver (Ploceus cucullatus) in non-breeding plumage at the LA Zoo.
  • Ring-tailed lemur (Lemur catta) at the Lincoln Children's Zoo.
  • Picture of a gyrfalcon, Falco rusticolus, named Mariah at the Point Defiance Zoo.
  • Vulnerable (IUCN) Oregon spotted frog (Rana pretiosa) at the Sunriver Nature Center in Deschutes County, OR.
  • A federally threatened Northern spotted owl (Strix occidentalis caurina) named Opal.
  • Picture of a Fitzinger's false coral snake (Oxyrhopus fitzingeri) at the Dallas Zoo.
  • Photo: Spiked-top apple snail or mystery snail (Pomacea bridgesii) at Butterfly Pavilion.
  • Photo: A Sonoran whipsnake (Masticophis bilineatus) at Reptile Gardens.
  • Photo: A great crested flycatcher (Myiarchus crinitus) in the Wichita Mountains National Wildlife Refuge.
  • Picture of a Kidneyshell mussel (Ptychobranchus fasciolaris) at the Columbus Zoo.
  • Great Basin spadefoot toad (Spea intermontana) at the Arizona-Sonora Desert Museum.
  • A groundhog (Marmota monax).
  • Photo: A common house cricket (Acheta domestica).
  • A brown shrimp (Farfantepenaeus aztecus.)
  • A cypress darter (Etheostoma proeliare) at Conservation Fisheries, a native stream fish breeding center in Knoxville. This fish is common and widespread in the southeastern U.S.
  • Hillars' sideneck turtle (Phrynops hilarii) at the Tennessee Aquarium.
  • Photo: Mitten crayfish, Cambarus asperimanus, at the Crayfish lab in West Liberty University in West Liberty, WV. This specimen is from the Saluda River System, SC.
  • Photo: A desert great horned owl (Bubo virginianus pallescens) named Meadow, at Wild At Heart in AZ.
  • Photo: A blotched blue-tongued lizard (Tiliqua nigrolutea) at Healesville Sanctuary.
  • A greenback cutthroat trout (Oncorhynchus clarkii stomais) photographed at Downtown Aquarium in Denver, Colorado.
  • A vulnerable (IUCN) and federally threatened Florida sand skink (Plestiodon reynoldsi) at the Archbold Biological Station.
  • Photo: A bearded pygmy chameleon, Rhampholeon brevicaudata, at the Sedgwick County Zoo.
  • Photo: Pupae of Argema mimosae at the San Antonio Zoo.
  • A boreal owl (Aegolius funereus richardsoni) at the Alaska Zoo.
  • Photo: Splash-back poison frog (Ranitomeya variabilis) at the Houston Zoo.
  • Photo: A female Xenotoca doadrioi CR (earlier known as Xenotoca sp. San Marcos) at the Plzen Zoo in the Czech Republic.
  • Picture of a snow goose (Chen caerulescens) in blue phase.
  • Photo: A Steindachner's turtle (Chelodina steindachneri) at a private collection in Jakarta, Indonesia.
  • Photo: A frogspawn coral (Euphyllia divisa) at the Akron Zoo.
  • A tent tortoise (Psammobates tentorius verroxii) at the Fresno Chaffe Zoo.
  • A crested toad (Bufo typhonius) at the Houston Zoo.
  • Photo: Walking stick (Carausius detractus) at the Budapest Zoo.
  • A pallid bat (Antrozous pallidus) at the North Carolina Zoo, Asheboro, North Carolina.
  • A Baird's rat snake (Elaphe bairdi) at the Omaha Zoo.
  • Central newt (Notophthalmus viridescens louisianensis) at the National Mississippi River Museum and Aquarium in Dubuque, IA.
  • Photo: An Atlantic sea scallop (Placopecten magellanicus) at the Maine State Aquarium in West Boothbay, ME.
  • Photo: Stick insect (Hermagoras cultratolobatus) at the Moscow Zoo.
  • Picture of an Arctic fox (Vulpes lagopus) named Todd, at the Great Bend Brit Spaugh Zoo in Great Bend, Kansas.
  • Picture of a dunlin (Calidris alpina) at the Monterey Bay Aquarium.
  • Picture of a mole kingsnake (Lampropeltis calligaster rhombomaculata) at the Knoxville Zoo.
  • A groundhog (Marmota monax).
  • Philippine palm viper (Trimeresurus mcgregori) at the Detroit Zoo.
  • Vulnerable blackside daces (Chrosomus cumberlandensis) at Conservation Fisheries in Knoxville, Tennessee.
  • South African crowned crane (Balearica regulorum regulorum) at Parc des Oiseaux in Villars Les Dombes, France.
  • Photo: A gidgee skink (Egernia stokesii) at Reptile Gardens.
  • Photo: Clark's spiny lizard (Sceloporus clarkii) at Liberty Wildlife.
  • A boat-billed heron (Cochlearius cochlearius phillipsi) at the Gladys Porter Zoo in Brownsville, Texas.
  • Photo: An orange ground beetle species (Oryctomorphus bimaculatus) at Fauna Andina, a conservation center near Villarrica, Chile.
  • Photo: Jewel damselfish (Microspathodon chrysurus) at the Albuquerque BioPark Aquarium.
  • Portraits of a western sand darter (Ammocrypta clara). This is a very rare fish that should be listed federally but is not yet.
  • Photo: A tantalus monkey (Chlorocebus aethiops tantalus) at Limbe Wildlife Center, a rescue and rehab center for wildlife in Limbe, Cameroon.
  • Photo: Andaman Islands stick insect (Sceptrophasma hispidulum) at the Budapest Zoo.
  • A Clark's nutcracker (Nucifraga columbiana) at the School of Biological Sciences at the University of Nebraska-Lincoln. This and other corvid species are studied to learn how cognition evolved, how animals use cognitive abilities to solve problems in nature and how cognitive abilities can affect the evolutionary process.
  • An endangered (IUCN) and federally endangered San Esteban chuckwalla, Sauromalus varius, at the Arizona Sonora Desert Museum
  • Photo: A kinkajou (Potos flavus nocturnus) at BioParque do Rio.
  • A federally endangered Plymouth red-bellied turtle (Pseudemys rubriventris) sometimes called the Plymouth red-bellied cooter, at the Buttonwood Park Zoo in New Bedford, Massachusetts. This was the first freshwater turtle species in the United States to be listed as endangered.
  • Photo: A speckled chachalaca (Ortalis guttata guttata) at Huachipa Zoo in Lima, Peru.
  • Photo: A mane crayfish (Procambarus lophotus) collected in Georgia, by the West Liberty University Crayfish Conservation Lab.
  • Photo: Green guapote (Mayaheros beani) at the Arizona-Sonora Desert Museum.
  • A blotched or banded tiger salamander (Ambystoma mavortium melanostictum) at the National Mississippi River Museum and Aquarium, Dubuque, Iowa.
  • Photo: Orange fronted parakeet, Eupsittula canicularis canicularis, at Loro Parque Fundacion.
  • Photo: Female crane fly (Nephrotoma ferruginea) at Cedar Point Biological Station.
  • A gopher tortoise (Gopherus polyphemus) a vulnerable (IUCN) and federally threatened species at Zoo Atlanta.
  • A moluccan imperial pigeon (Ducula perspicillata perspicillata) at the Houston Zoo.
  • Photo: A rough scale python (Morelia carinata) at Reptile Gardens.
  • Picture of a regal fritillary (Speyeria idalia) at the Minnesota Zoo.
  • Photo: A pale chanting goshawk (Melierax canorus) at North Somerset Bird of Prey Centre in England.
  • Photo: Ringed plover (Charadrius hiaticula) at Monticello Center in Italy.
  • Photo: A grasshopper sparrow (Ammodramus savannarum) wild caught by biologists using a mist net, near Wood River, Nebraska.
  • A white-eyed vireo (Vireo griseus) at Fort Hood, Texas.
  • Photo: A bay pipefish, Syngnathus leptorhynchus, at the Alaska SeaLife Center
  • Photo: A three-spot demon fish (Satanoperca daemon) at the Dallas World Aquarium.
  • Crowned snake (Tantilla relicta relicta) at the Archbold Biological Station. This animal was collected near Arcadia, Florida, in De Soto County.
  • Photo: A male barbary stag or atlas deer (Cervus elaphus barbarus) at Tierpark Berlin.
  • A critically endangered (IUCN) and federally endangered hawksbill turtle (Eretmochelys imbricata) at the XCaret Resort in Mexico..
  • Photo: An Australian water rat (Hydromys chrysogaster) at the Plzen Zoo.
  • Photo: Iberian worm lizard (Blanus cinereus) at Graham's Quinta dos Malvedos Vineyard.
  • Photo: Brown color morph of the Limosa harlequin frog (Atelopus limosus) at the Panama Amphibian Rescue and Conservation Project.
  • Photo: Atlantic ghost crab (Ocypode quadrata) at Gulf Specimen Marine Lab.
  • A Koch's giant day gecko (Phelsuma madagascariensis kochi) from a private collection.
  • Yellow-necked francolin (Pternistis leucoscepus) at Safari Park Dvur Kralove.
  • Photo: A female wolf spider (Schizocosa tristani) from the University of Nebraska-Lincoln.
  • Photo: Pine marten (Martes martes) at the Moscow Zoo.
  • A Rio Grande leopard frog (Lithobates berlanderi) at the Vancouver Aquarium.
  • Photo: Timor monitor (Varanus timorensis) at Wroclaw Zoo.
  • Texas indigo snake (Drymarchon corais erebennus) at the Fort Worth Zoo.
  • A vulnerable big-headed Amazon river turtle (Peltocephalus dumerilianus) at the National Aquarium, Baltimore.
  • Photo: A palm tree frog (Boana pellucens) at Balsa de los Sapos.
  • Picture of an endangered yellow pond turtle (Mauremys mutica) from the Turtle Conservation Center in Cuc Phuong National Park, Vietnam.
  • The orange morph of a Pasco poison frog (Ranitomeya lamasi) from a private collection.
  • Photo: A pink hydroid (Eudendrium carneum) at Gulf Specimen in Panacea, Florida.
  • Photo: A golden-handed tamarin (Saguinus midas) at the Miller Park Zoo
  • Photo: An endangered dwarf Mexican crayfish (Cambarellus patzcuarensis) from a private collection.
  • Picture of a Bolivian blue-legged tarantula (Pamphobeteus antinous) at the Wellington Zoo.
  • Photo: A male Hawaiian duck (Anas wyvilliana) at WWT Slimbridge in England.
  • Photo: A male Marco Polo sheep (Ovis ammon polii) at Tierpark Berlin.
  • Photo: A torrent frog tadpole (Telmatobius hintoni) at Museo De Historia Natural "Alcide d'Orbigny". This species is listed as vulnerable on the IUCN Red List.
  • A Florida scrub lizard (Sceloporus woodi) from Cape Canaveral Florida.
  • A black-tailed prairie dog (Cynomys ludovicianus) at the Denver Zoo.
  • Photo: Valley Flame crayfish, Cambarus deweesae, at the Crayfish lab in West Liberty University in West Liberty, WV. This specimen is from Erwin, TN.
  • Photo: Chihuahuan hook-nosed snake (Gyalopion canum) from a private collection.
  • Photo: Shingleback lizard (Tiliqua rugosa) at Moonlit Sanctuary
  • A Eurasian eagle owl (Bubo bubo) at Ocean Park in Hong Kong.
  • Flame rump tree spider (Thrixopelma ockerti) at the Henry Doorly Zoo and Aquarium.
  • Photo: A Philippine tarsier (Tarsius syrichta syrichta) at the Avilon Zoo. This animal has the second largest eyes in the world compared to brain size.
  • Picture of a Hopi chipmunk (Neotamias rufus) at the Wildlife Rehabilitation Center of Northern Utah.
  • Photo: A common house cricket (Acheta domestica).
  • Picture of a Eurasian teal (Anas crecca crecca) at the Sylvan Heights Bird Park.
  • Photo: A black collared starling (Sturnus nigricollis) at the Plzen Zoo.
  • Photo: A pink ringed tent turtle (Pangshura tentoria circumdata) at the Gharial and Turtle Rehabiliation Center.
  • Picture of a female lesser whistling duck (Dendrocygna javanica) at Sylvan Heights Bird Park.
  • Photo: A Hasselt's bamboo shark (Chiloscyllium hasseltii) at River Safari, Singapore.
  • Photo: A northern moon snail (Euspira heros) at the Maine State Aquarium in West Boothbay, ME.
  • Picture of a crowned eagle (Stephanoaetus coronatus) at the LA Zoo.
  • A federally endangered Hawaiian hawk (Buteo solitarius) at the Houston Zoo.
  • A western hognosed snake (Heterodon nasicus) at the Sunset Zoo in Manhattan, KS.
  • A Yucatan neotropical rattlesnake (Crotalus tzabcan) at Zoo Atlanta.
  • Photo: Lesser Asian scorpion or mottled scorpion (Mesobuthus eupeus) at Moscow Zoo.
  • Photo: A male Philippine green pigeon (Treron axillaris) at the Avilon Zoo.
  • Picture of a coral catshark (Atelomycterus marmoratus) at Omaha's Henry Doorly Zoo and Aquarium.
  • Photo: A flower urchin (Toxopneustes pileolus) at Semirara Marine Hatchery Laboratory in the Philippines.
  • A ruin lizard (Podarcis sicula) at the Sedgwick County Zoo in Wichita, Kansas.
  • A Bothrops alternatus (Urutu) at the Chattanooga Zoo.
  • 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 black vulture (Coragyps atratus brasiliensis) at Parque Zoológico Huachipa in Lima, Peru.
  • Picture of a granite spiny lizard (Sceloporus orcutti) at the Santa Barbara Zoo.
  • Photo: A Florida black bear (Ursus americanus floridanus) named Cheyenne at the Brevard Zoo.
  • Photo: A female Mrs. Hume's pheasant (Syrmaticus humiae humiae) at a private collection.
  • A great egret (Ardea alba) at the Caldwell Zoo in Tyler, Texas.
  • Picture of a Northern pine snake (Pituophis melanoleucus melanoleucus) at Pet Paradise.
  • Photo: A critically endangered Javan pied starling (Gracupica contra jalla) at Jurong Bird Park.
  • Picture of a red spitting cobra (Naja pallida) at the Dallas Zoo.
  • Photo: Desert hooknose snake (Gyalopion quadrangularis) at the Phoenix Zoo.
  • Photo: Silver-striped charaxes (Charaxes lasti) at Butterfly Pavilion.
  • Photo: A Brazilian red and white tarantula (Nhandu chromatus) at the Virginia Zoo.
  • Photo: A vulnerable Spanish imperial eagle (Aquila adalberti) at the Madrid Zoo.
  • Andean marsupial tree frog (Gastrotheca rhiombabae) at the Omaha Zoo.
  • A vulnerable pygmy slow loris (Nycticebus pygmaeus) at Omaha's Henry Doorly Zoo and Aquarium, Omaha, Nebraska.
  • Virginia ctenucha (Ctenucha virginica) from Cross Lake, Minnesota.
  • Photo: A tungarra frog (Engystomps pustulosus) at the captive breeding facility in Quito, Ecuador.
  • Photo: Thorny devil (Moloch horridus) from the Melbourne Museum.
  • Photo: Spotted lungfish (Protopterus dolloi) at the Moscow Zoo.
  • A critically endangered (IUCN) and federally endangered hawksbill turtle (Eretmochelys imbricata) at the XCaret Resort in Mexico.
  • Photo: Prairie kingsnake (Lampropeltis calligaster calligaster) collected in Pawnee County, Nebraska.
  • Photo: A big blue octopus or day octopus (Octopus cyanea) at the Butterfly Pavilion.
  • A Texas horned lizard (Phrynosoma cornutum) at the Fort Worth Zoo.
  • Photo: Madagascar land snails (Helicophanta bicingulata) at the Plzen Zoo in the Czech Republic.
  • A European long-nosed viper (Vipera ammodytes ammodytes) at the St. Louis Zoo.
  • A snow corn snake (Pantherophis guttatus) at the Conservancy of Southwest Florida.
  • A giant panda (Ailuropoda melanoleuca) at Zoo Atlanta. This endangered (IUCN) and federally endangered species is native to China.
  • Two critically endangered Celebes crested macaque (Macaca nigra) at Omaha's Henry Doorly Zoo and Aquarium.
  • Picture of a Gulf Coast water dog (Necturus beyeri) at the Cincinnati Zoo.
  • A western slimy salamander (Plethodon albagula) at the Tulsa Zoo, Tulsa, Oklahoma.
  • Photo: A black winged stilt, Himantopus himantopus himantopus, at the Plzen Zoo.
  • Spiny-headed treefrog (Anotheca spinosa) from central America at Zoo Atlanta.
  • Photo: A white-striped gecko (Gonatodes vittatus) from a private collection.
  • Picture of a Julia butterfly (Dryas iulia largo) at the Minnesota Zoo.
  • Photo: Eastern screech owl (Megascops asio asio) at the Nashville Zoo.
  • A male banded darter (Etheostoma zonale) collected from Big Darby Creek near Circleville, OH.
  • Photo: Crested Goshawk (Accipiter trivirgatus extimus) at the Avilon Zoo.
  • Picture of a Himalayan griffon vulture (Gyps himalayensis) at the Assam State Zoo cum Botanical Garden in Guwahati, Assam, India.
  • Picture of Coolio, a vulnerable yellow-shouldered amazon parrot (Amazona barbadensis) at Alabama Gulf Coast Zoo.
  • Photo: A studio portrait of a golden doodle dog.
  • Red zebra, or Esther Grant’s zebra (Maylandia estherae) at L’aquarium tropical du palais de la Porte DorŽe.
  • Photo: A red bellied parrot (Poicephalus rufiventris) at the Jurong Bird Park.
  • Photo: A Three-lined or smooth knob-tailed gecko (Nephrurus levis levis) from a private collection.
  • 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 Von der Decken's sifaka at Lemuria Land.
  • Photo: A rock squirrel (Otospermophilus variegatus) at the Austin Wildlife Rescue.
  • Picture of an emperor goose, Chen canagica, at Sylvan Heights Bird Park.
  • Photo: Rufous-beaked snake (Rhamphiophis oxyrhynchus) from a private collection.
  • Picture of a potto (Perodicticus potto) at the Cleveland Metroparks Zoo.
  • A Mexican burrowing toad (Rhinophrynus dorsalis) at the Gladys Porter Zoo in Brownsville, Texas.
  • Photo: A Jameson's firefinch (Lagonostricta rhodopareia jamesoni) at a field museum in Gorongosa National Park.
  • Blanding's turtle (Emydoidea blandingii) at the Toledo Zoo.
  • Photo: A little owl (Athene noctua vidalii) at Parque Biologico.
  • A desert rosy boa (Lichanura trivirgata gracia) at the Miller Park Zoo in Bloomington, Illinois.
  • Chiricahua leopard frog (Lithobates chiricahuensis), a vulnerable (IUCN) and federally threatened species, at the Phoenix Zoo.
  • Photo: An endangered Siberian salamander (Ranodon sibiricus) at the Moscow Zoo.
  • Photo: A military macaw (Ara militaris) at the Denver Zoo. (IUCN: Vulnerable)
  • Photo: A female colorful Samar walking stick (Lonchodiodes samarensis) from the Plzen Zoo in the Czech Republic.
  • A broadwing hawk (Buteo platypterus).
  • Photo: Guineafowl puffer (Arothron meleagris) at the Dallas Children's Aquarium.
  • 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: A dead leopard frog that had been hit and killed on the highway near Watertown, NY.
  • Photo: A ferruginous hawk (Buteo regalis) at the Sutton Avian Research Center.
  • Photo: An endangered black-fronted piping guan (Aburria jacutinga) at Fundacao Jardim Zoologico de Brasilia.
  • Photo: An Alexandrine parakeet (Psittacula eupatria siamensis) at Phnom Tamao Wildlife Rescue Center - Wildlife Alliance.
  • Picture of a federally endangered, female Indian leopard (Panthera pardus fusca) at the Kamla Nehru Zoological Garden in Ahmedabad, India.
  • Picture of a vulnerable (IUCN) and federally endangered cheetah (Acinonyx jubatus) at the Columbus Zoo.
  • Photo: Emerald shiner (Notropis atherinoides) at the University Lab at the University of Minnesota in St. Paul.
  • Photo: A black-chested jay (Cyanocorax affinis) at the National Aviary of Colombia.
  • Picture of a vulnerable Hispaniolan or Haitian slider turtle (Trachemys decorata) at the Bermuda Aquarium, Museum and Zoo.
  • A Texas blind snake (Leptotyphlops dulcis) at the Gladys Porter Zoo in Brownsville, Texas.
  • Photo: A male Indian red junglefowl (Gallus gallus murghi) at a private collection.
  • A vulnerable 1-year-old fossa, Cryptoprocta ferox, at the Omaha Zoo. This is Madagascar's largest mammalian predator, and its numbers are declining in the wild.
  • Photo: South American cockroaches (Bladerus giganteus) at the Bramble Park Zoo.
  • An elephant-eared chameleon (Calumma brevicorne brevicorne) near Lemuria Land, Madagascar.
  • Photo: A female bush katydid (Scudderia sp.) at Spring Creek Prairie near Denton.
  • An Angolan python (Python anchietae) at the Omaha Zoo.
  • Photo: Pine Island rice rat (Oryzomys palustris planirostris) at Ding Darling National Wildlife Refuge on Sanibel Island, Florida.
  • Photo: An endangered june sucker (Chasmistes liorus) at the Loveland Living Planet Aquarium in Draper, UT.
  • Photo: Dalmatian wall lizard (Podarcis melisellensis) at Wroclaw Zoo.
  • Picture of a four-banded sandgrouse (Pterocles quadricinctus) at the Tulsa Zoo.
  • Photo: Critically endangered staghorn coral (Acropora cervicornis) at Butterfly Pavilion in Westminster, Colorado.
  • Yellow-throated plated lizard (Gerrhosaurus flavigularis) at the Omaha Zoo.
  • A plain pocketbook mussel (Lampsilis cardium) displays a fish-like lure used to attract fish hosts for its young. This is one of 44 species of freshwater mussels still found in the upper Mississippi River near Prairie du Chien, WI.
  • Photo: Arafura file snake (Acrochordus arafurae) at Lilydale High School in Australia.
  • A satanic leaf-tailed gecko (Uroplatus phantasticus) at the Houston Zoo, Houston, Texas. (IUCN: Vulnerable)
  • Photo: An Ecuadorian rainbow birdeater (Pamphobeteus ultramarinus) at Museum of Nature South Tyrol.
  • Picture of a Haitian dwarf boa (Tropidophis haetianus) at the St. Louis Zoo.
  • Photo: Eurasian sparrowhawk (Accipiter nisus) at the Budapest Zoo.
  • A honeybee (Apis mellifera) photographed in a studio in Lincoln, NE.
  • Photo: A unidentified snipe fly larvae (Rahagionidae sp.) at the West Liberty University Crayfish Conservation Lab in West Liberty, Virginia.
  • A king penguin (Aptenodytes patagonicus patagonicus) at the Omaha Zoo.
  • A male Eucerini bee photographed at a studio in Lincoln, NE.
  • Picture of a common tree snake (Dendrelaphis punctulatus) at the Healesville Sanctuary.
  • A male jungle cat (Felis chaus), named Andreka at the Conservators center.
  • Wild caught giant ameiva (Ameiva ameiva) in Gamboa, Panama.
  • Photo: Sea snail (Stomatella sp.) at Butterfly Pavilion.
  • Photo: Endangered Cope's arboreal alligator lizard (Abronia aurita) at Urban Ark Conservation.
  • Picture of a Dumeril's monitor (Varanus dumerilii) at the Lincoln Children's Zoo, Lincoln, Nebraska.
  • Photo: A female Brush-legged wolf spider (Schizocosa ocreata) from the University of Nebraska-Lincoln.
  • Picture of a plate-billed mountain toucan (Andigena laminirostris) at the Dallas World Aquarium
  • Photo: Bearded vulture (Gypaetus barbatus) at Parco Natura Viva.
  • Photo: A squacco heron (Ardeola ralloides) at the Prague Zoo.
  • Photo: A tarantula (Reversopelma petersi) from a private collection.
  • Photo: Two white lipped peccaries (Tayassu pecari albirostris) at the Berlin Zoo. This species is listed as vulnerable on the IUCN Red List.
  • Picture of a Bobcat (Lynx rufus) named Keta at the Miller Park Zoo.
  • Picture of a spotted dove (Spilopelia chinensis) at SPCA Bird Wing, a bird rehab center in Auckland, New Zealand.
  • Picture of a critically endangered red phased Lehmann's poison frog, also known as a red-banded poison frog, (Oophaga lehmanni) at the Cali Zoo in Colombia.
  • Photo: An Asian painted frog, or chubby frog (Kaloula pulchra) from the Fish N Stuff pet store in Yankton.
  • Photo: Three lined girdled lizard, Zonosaurus trilineatus, one of just two in captivity, at the Plzen Zoo.
  • Photo: A green spotted puffer (Tetraodon nigroviridis) at the Singapore Zoo's River Safari area.
  • Northern flying squirrel (Glaucomys sabrinus zaphaeus) at the Alaska Zoo.
  • Picture of a striped squirrelfish (Sargocentron xantherythrum) at Pure Aquariums.
  • Photo: An Indo-Pacific borer urchin (Echinometra mathaei) at Riverbanks Zoo and Garden.
  • Photo: Two RiedelÕs eclectus parrots, Eclectus roratus riedeli, at Loro Parque Fundacion.
  • Picture of a federally threatened, Canada lynx (Lynx canadensis) named Yukon at the Point Defiance Zoo.
  • Photo: A Madagascar girdled lizard (Tracheloptychus madagascariensis) at the Plzen Zoo.
  • Photo: Beech marten (Martes foina) at the Moscow Zoo.
  • Photo: Eastern garter snake (Thamnophis sirtalis sirtalis) at the Exmoor Zoo.
  • Photo: An endangered brow-antlered deer (Rucervus eldii) named 'Blitzen' at the Sedgwick County Zoo in Wichita, Kansas.
  • Picture of two endangered red rain frogs also known as Malagasy rainbow frogs (Scaphiophryne gottlebei) at the National Mississippi River Museum and Aquarium in Dubuque, Iowa.
  • A groundhog (Marmota monax).
  • Photo: Snail darter (Percina tanasi) at Conservation Fisheries.
  • Photo: Brazilian electric ray (Narcine brasiliensis) at Gulf Specimen Marine Lab and Aquarium.
  • A wild caterpillar in Bioko Island, Equatorial Guinea.
  • A European hedgehog (Erinaceus europaeus) at Wildwood Trust near Canterbury, England.
  • Picture of a male fallow deer (Dama dama) at the Suzhou Zoo.
  • Photo: A Black marsh turtle (Siebenrockiella crassicollis) at Angkor Centre for Conservation of Biodiversity (ACCB) in Cambodia.
  • Photo: Common wall lizard (Podarcis muralis) at Wroclaw Zoo.
  • Photo: Lurcher (Yoma sabina) at Melbourne Zoo. This is a male.
  • A vulnerable African elephant (Loxodonta africana) at the Indianapolis Zoo.
  • Photo: A blue pansy (Junonia orithya leucasia) at Davao Butterfly House.
  • Photo: A Merrem's Madagascar swift, Oplurus cyclurus, at the Plzen Zoo.
  • Photo: Pink and purple striped barnacles (Balanus amphitrite) with sea mat (Biflustra tenius) in the middle at Gulf Specimen in Panacea, Florida.
  • Sara, the endangered (IUCN) and federally endangered whooping crane (Grus americana), at the Audubon Center for Research of Endangered Species. This is an educational bird.
  • A mudpuppy (Necturus maculosus) at the Genoa National Fish Hatchery.
  • A giant leaf-toed gecko (Hemidactylus giganteus) from a private collection.
  • A juvenile skunk (Mephitis mephitis).
  • Photo: Crystal jelly (Aequorea victoria) at Aquarium of the Pacific in Long Beach, CA.
  • Photo: A chameleon (Calumma hilleniusi) in Madagascar.
  • 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.
  • Photo: A vulnerable kuroiwa's ground gecko (Goniurosaurus kuroiwae) from a private collection.
  • A giant leaf-tail gecko (Uroplatus fimbriatus) at the St. Louis Zoo, St. Louis, Missouri.
  • A Cuban knight anole (Anolis equestris) at the Houston Zoo.
  • Picture of a gem tang (Zebrasoma gemmatum) at the Dallas World Aquarium.
  • Picture of an endangered (IUCN) and federally endangered black-footed ferret (Mustela nigripes) at the Cheyenne Mountain Zoo.
  • Photo: Nile bichir (Polypterus bichir) at Moscow Zoo.
  • A Galeana false brook salamander (Pseudoeurycea galeanae) at the San Antonio Zoo. (IUCN: Near Threatened)
  • Photo: The blinking snail (Quantula striata) at the Singapore Zoo.
  • Photo: An Amazon milk tree frog (Trachycephalus resinifictrix) at Reptile Gardens.
  • Photo: A black-winged starling (Sturnus melanopterus tertius) at Bali Bird Park in Indonesia.
  • Photo: A golden poison dart frog (Phyllobates terribilis) at Rolling Hills Wildlife Adventure.
  • Picture of a wunderpus octopus (Wunderpus photogenicus) at the Monterey Bay Aquarium.
  • Picture of Ouachita streambed salamanders (Eurycea subfluvicola).
  • Canary island lizard (Gallotia galloti eisentrauti) at Wroclaw Zoo.
  • Picture of a song sparrow (Melospiza melodia) at Tall Timbers Research Station and Land Conservancy.
  • A migrant loggerhead shrike (Lanius ludovicianus migrans) at the Toronto Zoo.
  • Picture of an endangered red panda (Ailurus fulgens fulgens) at the Lincoln Children's Zoo.
  • A spectacled owl (Pulsatrix perspicillata).
  • Ross's turaco (Musophaga rossae) at the Cleveland Metroparks Zoo.
  • Photo: A cormorant (Phalacrocorax carbo carbo) at Hessilhead Wildlife Rescue.
  • Picture of a lesser snow goose (Chen caerulescens caerulescens) at Sylvan Heights Waterfowl Park.
  • A Reeve's Muntjac (Muntiacus reevesi) at the Lincoln Children's Zoo.
  • Photo: A Goldei's monkey (Callimico goeldi) at the Cheyenne Mountain Zoo.
  • Picture of female Himalayan wolves (Canis lupus himalayensis) at the Padmaja Naidu Himalayan Zoological Park, in Darjeeling, India.
  • Mali spiny tailed lizard (Uromastyx dispar maliensis) at Scaly Dave's Herp Shack.
  • Picture of a trumpeter swan (Cygnus cygnus buccinator) at the Houston Zoo.
  • Photo: Gila longfin dace, Agosia chrysogaster chrysogaster, at the Aquatic Research and Conservation Center.
  • Picture of a male striped cowfish (Aracana aurita) at Omaha's Henry Doorly Zoo and Aquarium.
  • Photo: Maroon bellied parakeet (Pyrrhura frontalis chiripepe) at Loro Parque Fundacion.
  • Photo: A pair of Guianan red-cotinga (Phoenicircus carnifex) at the Dallas World Aquarium.
  • Photo: Mindanao highland scops owl (Otus mirus) at Crocolandia in the Philippines.
  • A razorback sucker (Xyrauchen texanus), from the Colorado River System. (US: Endangered; IUCN: Critically endangered)
  • Photo: A bitterling (Rhodeus sericeus amarus) at Alpenzoo in Innsbruck, Austria.
  • Photo: Alpine chough (Pyrrhocorax graculus graculus) at Alpenzoo in Innsbruck, Austria.
  • Photo: A Northern pufferfish (Sphoeroides maculatus) at the Virginia Aquarium.
  • Photo: Lined chiton (Tonicella lineata) at the Alaska SeaLife Center in Seward, AK.
  • Photo: A pair of four-week-old old Asian leopard cats, (Prionailurus bengalensis bengalensis). These two were found abandoned by their mother a couple days ago in a burning field and brought to the Angkor Centre for Conservation of Biodiversity (ACCB), a wildlife rehab center in Siem Reap, Cambodia.
  • Photo: A Spanish ibex (Capra pyrenaica) at the Madrid Zoo.
  • Photo: A jackdaw (Corvus monedula spermologus) at Hessilhead Wildlife Rescue.
  • Photo: A Mindoro water monitor (Varanus bangonorum) on Semirara Island in the Philippines.
  • Picture of a male and female Maccoa duck (Oxyura maccoa) at Sylvan Heights Bird Park.
  • A pair of New Guinea singing dogs (Canis lupus hallstromi) at the Miller Park Zoo.
  • A black-capped chickadee (Poecile atricapillus atricapillus) from Omaha, NE.
  • 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.
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