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 37,532-picture Photo Ark for an animal or species. Scroll down to see every species in the Ark … if you’ve got all day.

  • 11,494 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
  • A federally endangered yellow-footed rock wallaby (Petrogale xanthopus) at Omaha Zoo's Wildlife Safari Park.
  • An endangered (IUCN) and federally endangered African wild dog (Lycaon pictus) at the Omaha Zoo.
  • Photo: A Virginia creeper sphinx (Darapsa myron) from Deerwood, MN.
  • Photo: A striped newt (Notophthalmus perstriatus) at the Sedgwick County Zoo.
  • A federally endangered light-footed clapper rail (Rallus longirostris levipes).
  • Photo: Checkered keelback or Asiatic water snake (Xenochrophis piscator) at Kamla Nehru Zoological Garden, Ahmedabad, India.
  • Picture of a pygmy hippopotamus (Choeropsis liberiensis) named Betty at the Omaha Zoo. Listed as endangered (IUCN)
  • Orange-winged Amazon (Amazona amazonica amazonica) at Cafam Zoo in Melgar, Colombia.
  • Photo: A sidewinder rattlesnake (Crotalus cerastes) at the Tulsa Zoo.
  • Green and black poison dart frog, Panama morph (Dendrobates auratus) from a private collection.
  • Photo: A rusty crayfish, Orconectes rusticus, from Leech Lake in Minnesota.
  • Photo: A male Golden pheasant (Chrysolophus pictus) at Pheasant Heaven.
  • A giant leaf-tail gecko (Uroplatus fimbriatus) at the St. Louis Zoo, St. Louis, Missouri.
  • A Mexican spiny-tail iguana (Ctenosaura pectinata), at the Chapultepec Zoo, Mexico City, Mexico.
  • Photo: Banded knifefish (Gymnotus carapo) at L'aquarium tropical du palais de la Porte DorŽe.
  • Australian shelducks (Tadorna tadornoides) at the Kansas City Zoo.
  • Black crowned night heron (Nycticorax nycticorax nycticorax) at Kamla Nehru Zoological Garden, Ahmedabad, India.
  • Photo: Spiderman agama (Agama mwanzae) at the Houston Zoo.
  • Photo: Several Fiji devil damselfish (Chrysiptera taupou) at Shark Reef Aquarium at Mandalay Bay, Las Vegas, NV.
  • Photo: Starfish (Distolasterias nipon) at the Moscow Zoo.
  • A marbled newt (Triturus marmoratus) photographed at Conservation Fisheries, a breeding center for rare native stream fish.
  • Wood frog (Lithobates sylvaticus or Rana sylvatica) at the National Aquarium in Baltimore.
  • Photo: A Vulturine guineafowl, Acryllium vulturinum.
  • Photo: A collared raven (Corvus albicollis) at Reptile Gardens.
  • A Mexican burrowing python (Loxocemus bicolor) at the Sedgwick County Zoo in Wichita, Kansas.
  • A male common grackle (Quiscalus quiscula) at the San Antonio Zoo.
  • Photo: An undescribed crayfish species (Cambarus cf.) collected from Clear Creek, Trenton, Alabama, by the West Liberty University Crayfish Conservation Lab. This species is brand new to science and will be named in the near future.
  • Photo: Herman's tortoise (Testudo hermanni) at Safari Land Pet Center.
  • Photo: Benjamin, the Los Angeles Basin brush rabbit (Sylvilagus bachmani cinerascens) at the Big Bear Alpine Zoo in Big Bear Lake, CA.
  • Photo: Chica, an ornate lorikeet (Trichoglossus ornatus) at the Boonshoft Museum.
  • Photo: An endangered lowland anoa (Bubalus depressicornis) at Taman Safari in Bogor, West Java, Indonesia.
  • Picture of a Pink zebra beauty tarantula (Eupalaestrus campestratus) at the Dallas Zoo.
  • Photo: Red backswimmer (Notonecta lobata) at the Bugarium at the Albuquerque BioPark.
  • Photo: Lesser Bornean mousedeer (Tragulus kanchil klossi) at the Singapore Zoo.
  • Photo: An unidentified tiger moth (Amata species) on Mindoro Island in the Philippines.
  • Photo: Eurasian (grey) crane (Grus grus grus) at Parc des Oiseaux in Villars Les Dombes, France.
  • Photo: A male critically endangered southern helmeted curassow (Pauxi unicornis) at the Dallas World Aquarium.
  • Photo: A wild caught unidentified Katydid from Mt. Makiling forest in Luzon, Philippines.
  • Picture of a lesser snow goose (Chen caerulescens caerulescens).
  • Photo: A red-billed buffalo weaver (Bubalornis niger) at the Prague Zoo.
  • Photo: Black-throated canary (Crithagra atrogularis), also known as the yellow-rumped seedeater in Choussy, France.
  • Photo: Ptychochromis grandidieri at L'aquarium tropical du palais de la Porte DorŽe.
  • Photo: Oriole warbler (Hypergerus atriceps) at the Oklahoma City Zoo.
  • A studio portrait of a gray short-tailed opossum (Monodelphis domestica).
  • Photo: Stumpff's Madagascar ground gecko, Paroedura stumpffi, at the Plzen Zoo.
  • Picture of a katydid (Microcentrum) at the Central Florida Zoo.
  • Picture of a vulnerable Hispaniolan Amazon parrot (Amazona ventralis) at Parque Zoologico Nacional, the zoo in Santo Domingo, Dominican Republic.
  • Photo: Kanzi the Bonobo (Pan paniscus) at the Ape Cognition and Conservation Initiative (ACCI) in Des Moines, Iowa.
  • A satanic leaf-tailed gecko (Uroplatus phantasticus) at the Houston Zoo, Houston, Texas. (IUCN: Vulnerable)
  • The juvenile phase of the lubber grasshopper, Romalea guttata.
  • Photo: Possibly a baby robin, from the home of wildlife rescuer in Lincoln, Nebraska.
  • Photo: Red-flanked lorikeets (Charmosyna placentis placentis) at the Boonshoft Museum.
  • Photo: A Java yellow kneed tarantula (Selenocosmia javanensis) from a private collection.
  • Photo: A spiny softshell turtle (Trionyx spiniferus) at Reptile Gardens.
  • A satanic leaf-tailed gecko (Uroplatus phantasticus) at the Houston Zoo, Houston, Texas. (IUCN: Vulnerable)
  • A federally endangered male Florida grasshopper sparrow (Ammodramus savannarum floridanus). This sparrow was photographed inside of a shooting tent at the Kissimmee Prairie Preserve State Park, one of the last examples of Florida dry prairie which is an essential habitat for species like this one.
  • Photo: Squat lobster (Munida quadrispina) at Ripley's Aquarium of Canada.
  • Picture of a male Mountain goat (Oreamnos americanus) at the Cheyenne Mountain Zoo.
  • Photo: (Kryptopterus lais) at Zoo Negara.
  • Photo: Threespine stickleback (Gasterosteus aculeatus) at East Bay Regional Park District.
  • Portrait of a male northern bobwhite quail (Colinus virginianus).
  • Photo: A Brongersma's toad (Barbarophryne brongersmai) at Aquarium Berlin.
  • Picture of a blue phase of the strawberry poison dart frog (Oophaga (Dendrobates) pumilio) at the National Aquarium in Baltimore.
  • Photo: An endangered red dhole (Cuon alpinus) at the Singapore Zoo.
  • Photo: Southwestern speckled rattlesnake (Crotalus mitchellii pyrrhus) at the LA Zoo.
  • Picture of a Haitian dwarf boa (Tropidophis haetianus) at the Parque Zoologico Nacional in Santo Domingo, Dominican Republic.
  • A giant water beetle (Belostomatidae sp.)
  • Photo: A spotted laughingthrush (Garrulax ocellatus artemisiae) at the Prague Zoo.
  • A frog beetle (Sagra sp.) at the Audubon Insectarium in New Orleans.
  • Picture of purple sea urchins (Strongylocentrotus purpuratus) at the National Mississippi River Museum and Aquarium in Dubuque, Iowa.
  • Photo: A white-backed mousebird (Colius colius) at the Dallas Zoo.
  • A Nile soft shell turtle (Trionyx triunguis) at the Omaha zoo.
  • Picture of a common squirrel monkey, Saimiri sciureus, at the Lincoln Children's Zoo.
  • Photo: Spotted puffer (Tetraodon fluviatilis) at the Oklahoma City Zoo.
  • Picture of Johnny the serval (Leptailurus serval) at the Lincoln Children's Zoo.
  • Photo: Aymara parakeet (Psilopsiagon aymara) at Loro Parque Fundacion.
  • Photo: Warmouth (Lepomis gulosus) at Welaka National Fish Hatchery Aquarium.
  • Photo: A Northern studfish (Fundulus catenatus) from a private collection in Knoxville, Tennessee.
  • Picture of a red-crested finch (Coryphospingus cucullatus) at the Tulsa Zoo.
  • Picture of a Florida bark scorpion (Centruroides gracilis) at the Dallas World Aquarium.
  • Picture of an endangered pygmy hippopotamus (Choeropsis liberiensis) named Betty at the Omaha Zoo.
  • Three eyelash frogs or Solomon island leaf frogs (Ceratobatrachus guentheri) at Omaha's Henry Doorly Zoo.
  • Photo: Honduran ratsnake (Elaphe flavirufa pardalina) at the Oklahoma City Zoo.
  • A vulnerable (IUCN) greater prairie-chicken (Tympanuchus cupido.)
  • Photo: A Philippine catsnake (Boiga philippina) at the Avilon Zoo.
  • Photo: Long-mandibled stag beetle (Cyclommatus metallifer) at the Insectarium in New Orleans.
  • Photo: Common midwife toad (Alytes obstetricans) at the London Zoo.
  • A western fox snake (Elaphe vulpina vulpina).
  • Photo: A Key Largo woodrat (Neotoma floridana) (US: Endangered) at Disney's Animal Kingdom.
  • An Osage copperhead (Agkistrodon contortrix phaeogaster) at Reptile Gardens.
  • Photo: A scorpion mud turtle (Kinosternon scorpiodes) at the Chapultepec Zoo in Mexico City.
  • Picture of a little spectaclecase (Villosa lienosa) collected from the Ochlockonee River near Tallahassee, Florida.
  • South Georgia king penguins (Aptenodytes patagonicus patagonicus) at the Indianapolis Zoo.
  • Photo: A barred buttonquail (Turnix suscitator) at the Plzen Zoo.
  • Photo: A common noctule bat (Nyctalus noctula noctula) at Centro Fauna Selvatica "Il Pettirosso".
  • Picture of an endangered (IUCN) and federally endangered siamang (Symphalangus syndactylus) at the Houston Zoo.
  • A Gould's monitor lizard (Varanus gouldii) at Omaha's Henry Doorly Zoo.
  • Photo: Two male purple martins (Progne subis subis) at Rogers Wildlife Rehabilitation in Hutchins, TX.
  • Picture of an endangered Hispaniolan hutia (Plagiodontia aedium) at the Parque Zoologico Nacional in Santo Domingo, Dominican Republic.
  • Picture of an endangered (IUCN) and federally endangered Malayan tapir (Tapirus indicus).
  • Green crab, Carcinus maenas, at the Sedge Island Natural Resource Education Center in the Sedge Islands Marine Conservation Zone, Barnegat Bay, New Jersey.
  • Picture of a black-ray goby (Stonogobiops nematodes) at Pure Aquariums.
  • Photo: Reticulated knifefish (Papyrocranus afer) at L'aquarium tropical du palais de la Porte DorŽe.
  • Picture of Rani, an endangered female Bengal tiger (Panthera tigris tigris) at Alabama Gulf Coast Zoo.
  • Picture of an Eastern collared lizard (Crotaphytus collaris collaris) at the Wichita Mountains National Wildlife Refuge near Lawton, OK.
  • A Graells's black-mantled tamarin (Saguinus nigricollis graellsi) at Berlin Zoo.
  • Photo: A male, crab eating fox (Cerdocyon thous azarae) named Pesto at Fundacao Jardim Zoologico de Brasilia.
  • Photo: Black agouti (Dasyprocta fuliginosa) at Parque Jaime Duque near Bogota, Colombia.
  • Photo: A four-horned chameleon (Chamaeleo quadricornis) at the Fort Worth Zoo.
  • Photo: Grass wren (Cistothorus platensis) at the Wildlife Rehabilitation Center of Minnesota
  • Photo: A male and female pair of pied harrier (Circus melanoleucos) at the Avilon Zoo.
  • Picture of a sharp-nosed viper (Deinagkistrodon acutus) at the Dallas Zoo.
  • Photo: Black kite (Milvus migrans parasitus) at PBZT, the Parc Botanique Et Zoologique de Tsimbazaza.
  • A sturgeon chub (Macrhybopsis gelida).
  • Picture of Raphael, an endangered 8 1/2 week-old Bengal tiger cub (Panthera tigris tigris) at Alabama Gulf Coast Zoo.
  • A federally endangered timber wolf (Canis lupus) named Kenai at the New York State Zoo.
  • A Dekay's brownsnake (Storeria dekayi texana) collected from Nebraska.
  • A vulnerable big-headed Amazon river turtle (Peltocephalus dumerilianus) at the National Aquarium, Baltimore.
  • An American crow (Corvus brachyrhynchos) at the Sutton Avian Research Center, Bartlesville, Oklahoma.
  • Photo: A striped love beetle (Eudicella gralli pauperata) at Aquarium Berlin.
  • A red-crested cardinal (Paroaria coronata) at the Omaha Henry Doorly Zoo, in Omaha, Nebraska.
  • Photo: Black-spotted pond frog (Pelophylax nigromaculatus) at the Moscow Zoo.
  • Photo: An Eurasian tree sparrow (Passer montanus saturatus) at Farmville de Bago on Negros Island in the Philippines.
  • Picture of a springbok mantis (Miomantis caffra) at the Auckland Zoo.
  • Photo: A redspotted sunfish (Lepomis miniatus) at the Medicine Park Aquarium and Natural Sciences Center in Medicine Park, OK.
  • Photo: Savanna hawk (Buteogallus meridionalis) at Parque Jaime Duque near Bogota, Colombia.
  • Photo: (Kryptopterus lais) at Zoo Negara.
  • A Gulf marsh snake (Nerodia fasciata clarki) at the Estuarium in Dauphin Island, AL.
  • Photo: An Oriental pied hornbill (Anthracoceros albirostris convexus) at the Jurong Bird Park.
  • Photo: A masked grassfinch (Poephila personata personata) at Plzen Zoo in the Czech Republic.
  • 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: A Vulturine guineafowl, Acryllium vulturinum.
  • Wood frog (Lithobates sylvaticus or Rana sylvatica) at the National Aquarium in Baltimore.
  • Photo: Golden-breasted bunting (Emberiza flaviventris) in Choussy, France.
  • Couch's spadefoot toad (Scaphiopus couchii) at the Arizona-Sonora Desert Museum.
  • A white-eyed vireo (Vireo griseus) at Fort Hood, Texas.
  • Photo: A Solomon Island spiny monitor (Varanus spinulosus) at the San Antonio Zoo.
  • Photo: An unidentified minnow mayfly (Baetidae sp.) collected by the West Liberty University Crayfish Conservation Lab. This insect was collected from Seven Springs, Pennsylvania
  • 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.
  • Photo: Island applesnail, Pomacea maculata, at Ding Darling National Wildlife Refuge on Sanibel Island, Florida.
  • A smallmouth bass (Micropterus dolomieu), wild-caught from the Clark Fork River near Noxon, Montana.
  • Picture of a Cutthroat trout (Oncorhynchus clarkii) at the Loveland Living Planet Aquarium.
  • Photo: Smooth green snake (Liochlorophis vernalis) collected in Virginia.
  • Photo: A female palm cockatoo (Probosciger aterrimus goliath) at Loro Parque Fundacion.
  • A studio portrait of a vulnerable (IUCN) male lesser prairie-chicken (Tympanuchus pallidicinctus) that was caught to be radio collared.
  • Photo: An endangered mountainous star coral (Orbicella faveolata) at Riverbanks Zoo and Garden.
  • Picture of a speckled hognose snake (Leioheterodon geayi) at Pet Paradise.
  • Photo: A mobile logperch (Percina kathae) photographed at the Alabama Aquatic Biodiversity Center in Marion, AL. This fish was collected from Walnut Creek, a tributary of the Cahaba River, AL.
  • Picture of a Yellow-breasted Ground-dove (Gallicolumba tristigmata) at the Houston Zoo.
  • Picture of a Siamese fireback pheasant (Lophura diardi) at Pheasant Heaven, a private pheasant breeding center near Clinton, NC.
  • Picture of a tri-colored bat (Perimyotis subflavus).
  • Madagascar ground boa (Acrantophis madagascariensis) at Tampa's Lowry Park Zoo.
  • A federally endangered margay (Leopardus wiedii wiedii) named Carlotta at the Cincinnati Zoo. She’s a $30,000 cat because that’s what the court costs and fines added up to for the man who she was confiscated from in Indiana. She was most likely born in the wild and is nearing the end of her life span at the age of 19.
  • Photo: Tree coral (Dendrophyllia ramea) at the Lisbon Aquarium
  • Picture of a washboard mussel (Megalonaias nervosa) collected from the Ochlockonee River near Tallahassee, Florida.
  • Toady rainfrog or rusty robber frog (Strabomantis or Craugastor bufoniformis), from Central America at Zoo Atlanta.
  • Photo: A sand perch (Diplectrum bivittatum) at Gulf Specimen Marine Lab.
  • Photo: A bushy tailed jird (Sekeetamys calurus makrami) at the Plzen Zoo.
  • Photo: Bicolored trailing ants (Monomorium floricola) at the Urban Entomology Lab at the University of Florida at Gainesville.
  • A painted wood turtle (Rhinoclemmys pulcherrima) at the Lincoln Children's Zoo, Lincoln, Nebraska.
  • An old world harvest mouse (Micromys minutus) at the Omaha Zoo.
  • Picture of a swan goose (Anser cygnoides) listed as vulnerable at the Miller Park Zoo.
  • Picture of an agile wallaby (Macropus agilis) at the Brevard Zoo in Melbourne, FL.
  • Picture of a Mexican black kingsnake (Lampropeltis getula nigrita) at the Omaha Henry Doorly Zoo.
  • Photo: Horned shark (Heterodontus francisci) at the Arizona- Sonora Desert Museum.
  • Photo: A northern prairie skink (Plestiodon septentrionalis) collected in Jefferson County, Nebraska.
  • Photo: A Guadalupe fur seal (Arctocephalus townsendi) at SeaWorld San Diego.
  • A Northern Appalachian brook trout (Salvelinus fontinalis) at the Tennessee Aquarium.
  • Picture of a flat rock scorpion (Hadogenes troglodytes) at the St. Louis Zoo.
  • Picture of an endangered (IUCN) and federally endangered, 21-year-old, lion-tailed macaque (Macaca silenus) named Babu at the Cincinnati Zoo.
  • A Mexican spiny-tail iguana (Ctenosaura pectinata), at the Chapultepec Zoo, Mexico City, Mexico.
  • Photo: A Mount Omei babbler (Liocichla omeiensis) at Wroclaw Zoo.This species is listed as vulnerable according to IUCN.
  • Photo: Squeaking crab (Ovalipes guadalupensis) at Gulf Specimen Marine Lab.
  • Photo: An Amazon blue bloom tarantula (Xenesthis intermedia) from a private collection.
  • Picture of a Cook's tree boa (Corallus cookii) at the Palm Beach Zoo.
  • Photo: A scorpion mud turtle (Kinosternon scorpiodes) at the Chapultepec Zoo in Mexico City.
  • Photo: Spiny red sea star (Hippasteria spinosa) at the Alaska SeaLife Center in Seward, AK.
  • A tailess tenrec (Tenrec ecaudatus) in Madagascar.
  • A great grey owl (Strix nebulosa nebulosa) at the New York State Zoo.
  • Picture of a blue neon (Paracyprichromis nigripinnis) at Omaha's Henry Doorly Zoo and Aquarium.
  • Photo: The Magdalena River turtle or Rio Magdalena river turtle (Podocnemis lewyana) at Cafam Zoo in Melgar, Colombia.
  • Photo: Pharaoh eagle-owl (Bubo ascalaphus) at the Woodland Park Zoo. This bird's name is Buddy, a male, about five years old.
  • A vulnerable Egyptian spiny-tailed Lizard (Uromastyx aegyptia) at the Buffalo Zoo.
  • Picture of a vulnerable female Congo peacock (Afropavo congensis) at the Houston Zoo.
  • Photo: Boulder brain coral (Colpophyllia natans) at Mote Tropical Research Laboratory.
  • Photo: Orange domino roach (Therea regularis) at the Budapest Zoo.
  • Photo: A Rufous hornbill (Buceros hydrocorax mindanensis) at Jurong Bird Park.
  • Picture of an Oscar fish (Astronotus ocellatus) at the U.S. Geological Survey Southeast Science Center.
  • Photo: Chinese cave gecko (Goniurosaurus hainanensis) at Loro Parque.
  • Photo: Male and female red-footed falcon (Falco vespertinus) at Monticello Center in Italy.
  • Photo: A male long-wattled umbrellabird (Cephalopterus penduliger) at the Dallas World Aquarium.
  • Photo: A one-toed amphiuma (Amphiuma pholeter) at the Oklahoma Aquarium.
  • Picture of a green jay (Cyanocorax yncas) at the Houston Zoo.
  • A prairie ringneck snake (Diadophis punctatus arnyi) from a private collection.
  • An endangered (IUCN) and federally endangered green sea turtle, also known as a white sea turtle (Chelonia mydas) at the XCaret Resort in Mexico.
  • Photo: Striped velvet gecko (Homopholis fasciata) at Wroclaw Zoo.
  • Marbled newt (Triturus marmoratus) shot at Conservation Fisheries, a breeding center for rare native stream fish.
  • Photo: A thick-billed green pigeon (Treron curvirostra) at Jurong Bird Park, part of Wildlife Reserves Singapore.
  • Photo: Ground-hopper (Erianthus versicolor) at Wroclaw Zoo.
  • A Javan leopard cat (Prionailurus javanensis javanensis) in Jakarta, Indonesia in the care of PT. Alam Nusantara Jayatama.
  • A Florida scrub millipede (Floridobolus penneri) at the Archbold Biological Station on the Lake Wales Ridge of Florida.
  • Photo: Asian blue quail (Coturnix chinensis) at Bay Beach Wildlife Sanctuary
  • Photo: A wabash pigtoe (Fusconaia flava) at the Center for Aquatic Mollusk Programs in Lake City, Minnesota.
  • A two-headed yellow-belied slider (Trachemys scripta scripta) at Riverbanks Zoo.
  • Photo: A Komodo dragon, Varanus komodoensis, at Sedgwick County Zoo. This animal is less than three months old and was a parthenogenetic birth.
  • An endangered (IUCN) four-eyed turtle (Sacalia quadriocellata) at the Tennessee Aquarium.
  • Photo: Himalayan brown bear (Ursus arctos isabellinus) at Himalayan Nature Park in Kufri.
  • Photo: A Finnish forest reindeer (Rangifer tarandus fennicus) at Berlin Zoo in Berlin, Germany.
  • Photo: A brown trout (Salmo trutta) at the Schramm Education Center near Gretna, NE.
  • An endangered (IUCN) green mantella (Mantella viridis) at the National Aquarium in Baltimore.
  • A scissor grinder cicada (Neotibicen pruinosus) in Lincoln, NE.
  • A vermillion sea star, Mediaster aequalis.
  • Photo: Longnose sucker (Catostomus catostomus) at the Alaska SeaLife Center in Seward, AK.
  • Picture of a white-spotted gecko (Tarentola annularis) at the Great Bend Brit Spaugh Zoo in Great Bend, Kansas.
  • Photo: Pacific staghorn sculpin (Leptocottus armatus) at East Bay Regional Park District.
  • Photo: Crossbill (Loxia curvirostra curvirostra) at Alpenzoo in Innsbruck, Austria.
  • Photo: A Mississippi kite (Ictinia mississippiensis) at the WildCare Foundation.
  • Picture of a yellow-crowned night heron (Nyctanassa violacea) at the Caldwell Zoo in Tyler, Texas.
  • Photo: An Island day gecko (Phelsuma nigristriata) at the Plzen Zoo.
  • Photo: A gray tree frog (Hyla versicolor) at the aquarium at Gavins Point National Fish Hatchery.
  • Photo: An Ecuadorian rainbow birdeater (Pamphobeteus ultramarinus) at Museum of Nature South Tyrol.
  • Leafcutter ants (Atta spp.) at the St. Louis Zoo.
  • Picture of a red-tailed boa (Boa constrictor) at the Lincoln Children's Zoo.
  • A female black-headed weaver (Ploceus melanocephalus) at Safari Park Dvur Kralove.
  • A coyote (Canis latrans) at the Great Plains Zoo.
  • Photo: A blue-crowned conure (Psittacara acuticaudatus acuticaudatus) at Jurong Bird Park, part of Wildlife Reserves Singapore.
  • An eastern giant eland (Taurotragus derbianus gigas) at the Houston Zoo.
  • Picture of lesser scaup ducks (Aythya affinis) at the Sylvan Heights Bird Park.
  • Photo: Black-billed turaco (Tauraco schuettii emini) at the Madrid Zoo.
  • A kinkajou (Potos flavus) at the NYS Zoo. This animal is native to Central and South America.
  • Photo: Tennessee mudbug (Cambarus thomai) from the wild.
  • Photo: An European wildcat (Felis silvestris silvestris) at Parco Natura Viva in Bussolengo, Italy.
  • A piping plover (Charadrius melodus). (US: Endangered)
  • A chestnut weaver (Ploceus rubiginosus) at the Omaha Zoo.
  • Photo: A Lear's macaw, Anodorhynchus leari, at Loro Parque Fundacion.
  • Photo: A walleye (Sander vitreum) at the Genoa National Fish Hatchery.
  • Photo: A common bronzewing (Phaps chalcoptera) at Zoo Plzeň.
  • Picture of a baracoa anole (Anolis baracoae) in a private collection in Houston, Texas.
  • A bluegill (Lepomis macrochirus).
  • Photo: The blue glassy tiger (Ideopsis vulgaris contigua) at ACCB in Siem Reap, Cambodia.
  • A red legged frog (Rana aurora) at the Oregon Zoo.
  • Big-headed rainfrog or big-headed robber frog (Craugastor megacephalus) at Zoo Atlanta. This species is primarily from Panama.
  • Pine Barrens treefrog (Hyla andersonii) at the Toledo Zoo.
  • A bluegill (Lepomis macrochirus).
  • An endangered lar gibbon (Hylobates lar) at the Gladys Porter Zoo in Brownsville, Texas.
  • Fork-tailed drongo (Dicrurus adsimilis) in Gorongosa in Mozambique, Africa.
  • Photo: A Solomon Island spiny monitor (Varanus spinulosus) at the San Antonio Zoo.
  • Photo: Oleander aphids (Aphis nerii) at the Audubon Insectarium, part of the Audubon Nature Institute.
  • A caterpillar of the Gulf fritillary butterfly (Agraulis vanillae) at the Audubon Insectarium in New Orleans, Louisiana.
  • Photo: Western corn rootworm beetle (Diabrotica virgifera virgifera) at the University of Florida at Gainesville.
  • A day-biting fly (Chrysops sp.), thought to carry the disease loa loa (Filariasis), from Bioko Island, Equatorial Guinea.
  • Photo: Federally threatened Decurrent false aster (Boltonia decurrens), at the Missouri Botanical Garden.
  • A giant desert hairy scorpion (Hadrurus arizonensis) at the Gladys Porter Zoo in Brownsville, Texas.
  • Photo: A cascabel (Crotalus terrificus) at Reptile Gardens.
  • Photo: Two critically endangered Madagascar pochard, Aythya innotata, at the Pochard Captive Breeding Center in Antsohihy, Madagascar.
  • Photo: Dalmatian wall lizard (Podarcis melisellensis) at Wroclaw Zoo.
  • Photo: A Siberian yellow-throated marten (Martes flavigula aterrima) at Tierpark Berlin.
  • Photo: A banded mystery snail (Viviparus georgianus) at the Center for Aquatic Mollusk Programs in Lake City, Minnesota.
  • Photo: A female red junglefowl (Gallus gallus gallus) at the Plzen Zoo in the Czech Republic.
  • A picture of a critically endangered and federally endangered, female South China tiger, Panthera tigris amoyensis, at the Suzhou Zoo in China.
  • Photo: Vulnerable babirusas (Babyrousa celebensis) at Night Safari, Singapore.
  • Two moon jellies, Aurelia aurita, at Shark Reef Aquarium.
  • A Florida cooter (Pseudemys floridana) at the Chapultepec Zoo in Mexico City.
  • Photo: A smooth snake (Coronella austriaca) at Prague Zoo. This species can be reliably identified by it's distinctive crown marking on the top of it's head.
  • Picture of a federally endangered, female Neotropical river otter (Lontra longicaudis) at the Summit Municipal Park in Gamboa, Panama.
  • Photo: A torrent frog (Telmatobius hintoni) at Museo De Historia Natural Alcide d'Orbigny, a natural history museum and rare amphibian breeding center in Chocabamba Bolivia.
  • Chestnut-fronted macaw (Ara severus) at the Fort Worth Zoo.
  • Photo: A Mekong snail-eating Turtle (Malayemys subtrijuga) at Angkor Centre for Conservation of Biodiversity (ACCB) in Cambodia.
  • Photo: Three juvenile common opossum (Didelphis marsupialis) at Cetas-IBAMA, a wildlife rehab center in Manaus, Brazil.
  • Picture of a reticulate gila monster (Heloderma suspectum suspectum) at the Gladys Porter Zoo in Brownsville, Texas.
  • Photo: A veiled chameleon (Chamaeleo calyptratus) at Rolling Hills Wildlife Adventure.
  • A five-lined skink (Eumeces fasciatus) collected from the Conasauga River.
  • Photo: A vulnerable Fiordland crested penguin (Eudyptes pachyrhynchus) at the Taronga Zoo in Sydney, Australia.
  • Photo: A critically endangered Javan slow loris (Nycticebus javanicus) at Jakarta Natural Resource Conservation Center in Indonesia.
  • Photo: A Florida cormorant (Phalacrocorax auritus floriduanus) at the Jacksonville Zoo and Gardens, Jacksonville, Florida.
  • Photo: A three-toed box turtle (Terrapene carolina triunguis) from the Houston Zoo.
  • Photo: A male purple martin (Progne subis subis) at Rogers Wildlife Rehabilitation in Hutchins, TX.
  • Photo: A sauger (Sander canadensis) at the Medicine Park Aquarium and Natural Sciences Center in Medicine Park, OK.
  • A Trans-Pecos rat snake (Bogertophis subocularis) at the Omaha Zoo.
  • Photo: Striped dottyback (Pseudochromis sankeyi) at Pure Aquariums.
  • A sturgeon chub (Macrhybopsis gelida).
  • Photo: A bay pipefish, Syngnathus leptorhynchus, at the Alaska SeaLife Center
  • Photo: Madagascar land snail (Helicophanta bicingulata) at the Plzen Zoo in the Czech Republic.
  • Photo: A federally endnagered Alula, also known as olulu, Brighamia insignis.
  • Photo: A male Mishmi takin (Budorcas taxicolor) at the Prague Zoo. This species is listed as vulnerable on the IUCN Red List.
  • Boulder darter (Etheostoma wapiti), a vulnerable (IUCN) and federally endangered species, at Conservation Fisheries, a native stream fish breeding center.
  • Photo: Dalmatian pelican (Pelecanus crispus) from Parc des Oiseaux in Villars Les Dombes, France.
  • Photo: Harperella (Ptilimnium nodosum) a federally endangered plant that is native to wetlands on the Atlantic and Gulf Coasts.
  • A vulnerable blue crowned pigeon (Goura cristata) at Omaha's Henry Doorly Zoo and Aquarium, Omaha, Nebraska.
  • Photo: A helmeted hornbill head that's been carved intricately.
  • Photo: A Kilimanjaro mustard baboon spider (Pterinochilus chordatus) at Prague Zoo.
  • Picture of the Everglade gray squirrel or Florida gray squirrel (Sciurus carolinensis extimus) at Ark Angels Wildlife Rescue.
  • An African brush-tailed porcupine (Atherurus africanus) at the Omaha Zoo.
  • Photo: Madagascar clawless gecko (Ebenavia inunguis) from a private collection.
  • Northern white-faced owls (Ptilopsis leucotis) named Gizmo and Dobby, at the Cincinnati Zoo.
  • Photo: White spotted puffer (Arothron hispidus) at Pure Aquariums.
  • Photo: Fire-tuffed barbet (Psilopogon pyrolophus) in Arona, Tenerife, Spain.
  • An Australian shelduck (Tadorna tadornoides) at the Kansas City Zoo.
  • Photo: Rainbow trout (Oncorhynchus mykiss) at East Bay Regional Park District.
  • Picture of a western yellow-bellied racer or Mormon racer (Coluber constrictor mormon) from the wild in Utah.
  • Picture of a male Pompadour Cotinga (Xipholena punicea) at the Houston Zoo.
  • Photo: A black-bellied plover or grey plover (Pluvialis squatarola), in winter plumage, at the Marathon Wild Bird Center in Marathon, Florida.
  • A Stresemann’s lorikeet (Trichoglossus forsteni stresemanni) at Loro Parque Fundacion. This species is listed as vulnerable on the IUCN red list.
  • A critically endangered (IUCN) and federally endangered Philippine crocodile (Crocodylus mindorensis) at the Gladys Porter Zoo.
  • Picture of a magenta dottyback (Pseudochromis porphyreus) at Pure Aquariums.
  • Picture of a female, critically endangered Yangtze giant softshell turtle (Rafetus swinhoei) at the Suzhou Zoo in China.
  • Photo: A leaf-tailed gecko (Uroplatus henkeleli) at Omaha's Henry Doorly Zoo.
  • Photo: Plains lubber grasshopper (Brachystola magna), male (left) and female, at Cedar Point Biological Station.
  • Photo: Iberian barbel or Barbo-do-Norte (Luciobarbus bocagei) at the Environmental Education Center of the Ribeiras de Gaia.
  • Photo: A blue rice coral (Montipora flabellata) at California Science Center in Los Angeles, CA. This species is listed as vulnerable by IUCN.
  • Picture of an emerald tree skink (Lamprolepis smaragdina) at the Virginia Zoo.
  • Photo: A Io caterpillar (Automeris io) at the Audubon Insectarium in New Orleans.
  • Picture of a federally threatened, Canada lynx (Lynx canadensis) named Yukon at Point Defiance Zoo.
  • Von der Decken's hornbill (Tockus deckeni) at Tampa's Lowry Park Zoo. The male has an orange beak, while the female has a black beak.
  • A vulnerable Swainson's toucan (Ramphastos ambiguus swainsonii) at the Omaha Henry Doorly Zoo, in Omaha, Nebraska.
  • A common kingsnake or albino eastern kingsnake (Lampropeltis getula getula) at the Tennessee Aquarium.
  • Dung beetles (Proagoderus brucei) from the wild in Cameroon.
  • Photo: A female, pearl-spotted killifish (Aphanius mento) at Aquarium Berlin.
  • Yellow-crowned Amazon or Yellow-crowned parrot (Amazona ochrocephala ochrocephala) Parrots in Paradise, a bird attraction in Glass House Mountains, Queensland.
  • A female (yellow in color) Golden Asian mantis (Hierodula venosa) at the Bugarium at the Albuquerque BioPark.
  • Photo: Collared lory (Phigys solitarius) at Loro Parque Fundacion.
  • A white rhinoceros (Ceratotherium simum simum) at Rolling Hills Wildlife Adventure in Salina, Kansas.
  • A harpy eagle (Harpia harpyja) at the Los Angeles Zoo.
  • Picture of a panther chameleon (Furcifer pardalis) at the Lincoln Children's Zoo.
  • Photo: Queen triggerfish (Balistes vetula) at the Omaha Zoo.
  • A black crake (Zapornia flavirostra) at the Columbus Zoo.
  • A muscovy duck named Joelle (Cairina moschata moschata) at the Gladys Porter Zoo in Brownsville, Texas.
  • Picture of a migratory locust (Locusta migratoria) at the Auckland Zoo.
  • Photo: A slender-billed gull (Larus genei) at Zoo Plzeň.
  • Photo: An endangered Bells turtle (Myuchelys bellii) at Turtles Australia.
  • A lilac-breasted roller, Coracias caudatus.
  • A Peters dwarf frog (Physalaemus petersi) at Pontificia Universidad Católica del Ecuador.
  • Picture of a critically endangered blue-crowned laughing thrush (Garrulax courtoisi simaoensis) at the Houston Zoo.
  • Picture of a common brushtail possum (Trichosurus vulpecula) at the Kiwi Birdlife Park in Queenstown, New Zealand.
  • studio portrait of a flathead snake, Tantilla gracilis.
  • Photo: A hand-raised koala (Phascolarctos cinereus) at Dreamworld in Queensland, Australia.
  • Photo: A honeycomb filefish (Cantherhines pardalis) at Semirara Marine Hatchery Laboratory in the Philippines.
  • Photo: African striped skink, Trachylepis striata, at the Houston Zoo.
  • Picture of a male greater scaup (Aythya marila) at Sylvan Heights Bird Park.
  • Photo: An European green lizard (Lacerta viridis viridis) at Parco Natura Viva in Bussolengo, Italy.
  • Photo: A Guadalupe fur seal (Arctocephalus townsendi) at SeaWorld San Diego.
  • Picture of a lesser siren (Siren intermedia texana) at the National Mississippi River Museum and Aquarium in Dubuque, Iowa.
  • Photo: A Mormyrus rume at L'aquarium tropical du palais de la Porte DorŽe.
  • Photo: An unidentified white orchid shrimp (Caridina sp.) white orchid, from a private collection.
  • Picture of a panacea walking sponge (Tetilla laminaris) at Gulf Specimen Marine Lab and Aquarium.
  • Picture of a sugar glider (Petaurus breviceps) at the Rolling Hills Wildlife Adventure.
  • A pair of vulnerable 1-year-old fossas, Cryptoprocta ferox, at the Omaha Zoo. This is Madagascar's largest mammalian predator, and its numbers are declining in the wild
  • An American crow (Corvus brachyrhynchos) at the Sutton Avian Research Center, Bartlesville, Oklahoma.
  • A white-faced whistling duck (Dendrocygna viduata) at the Lincoln Children's Zoo.
  • A Choco toad (Rhaebo hypomelas) collected near Pilalo, Ecuador.
  • Photo: A critically endangered brown spider monkey (Ateles hybridus) at Piscilago Zoo.
  • An eastern screech owl (Megascops asio asio) at Lincoln Children's Zoo.
  • A young western gray squirrel (Sciurus griseus) at Wildlife Images, an animal rehabilitation center near Merlin, Oregon.
  • Picture of a female purple martin (Progne subis) from WildCare in Noble, Oklahoma.
  • Picture of an Aleutian cackling goose, Branta hutchinsii leucopareia, at Sylvan Heights Bird Park.
  • Picture of aRio Grande siren (Siren intermedia) at the San Antonio Zoo.
  • Photo: A Meadow River Mudbug, Cambarus pauleyi, wild caught near West Liberty, West Virginia.
  • Photo: Honeypot ant (Myrmecocystus mexicanus) at the Bugarium at the Albuquerque BioPark.
  • Photo: Clown knifefish (Chitala ornata) at L'aquarium tropical du palais de la Porte DorŽe.
  • A federally endangered Karner blue butterfly, Lycaeides melissa samuelis.
  • Picture of a red banded snapping shrimp (Alpheus randalli) at Pure Aquariums.
  • Picture of a Chuxiong fire-bellied newt (Cynops cyanurus chuxiongensis) at the St. Louis Zoo.
  • A shortnose gar (Lepisosteus platostomus) at Gavins Point National Fish Hatchery and Aquarium.
  • A volcano rabbit (Romerolagus diazi) at Chapultepec Zoo in Mexico City. (IUCN: Endangered)
  • A greater kudu (Tragelaphus strepsiceros) and her calf at the Gladys Porter Zoo in Brownsville, Texas.
  • Photo: A Hawfinch (Coccothraustes coccothraustes) at the Plzen Zoo in the Czech Republic.
  • Photo: A 200-lb reticulated python (Broghammerus reticulatus) at the Naples Zoo in Naples, Florida.
  • Picture of a vulnerable male lesser white-fronted goose (Anser erythropus) at Sylvan Heights Bird Park.
  • Picture of a female common tern (Sterna hirundo) at the Buttonwood Park Zoo in New Bedford, Massachusetts.
  • Picture of a blue-tailed fire-bellied newt (Cynops cyanurus) at the St. Louis Zoo.
  • Fat tailed gerbil (Pachyuromys duprasi) at the Omaha Zoo.
  • A critically endangered Celebes crested macaque, Macaca nigra.
  • Photo: Walking stick (Trachythorax maculicollis) at the Budapest Zoo.
  • A yellow-striped caecilian (Ichthyophis kohtaoensis) at the San Antonio Zoo.
  • Photo: Two true tomato frogs (Dyscophus antongilii) at Omaha’s Henry Doorly Zoo.
  • Photo: An unidentified caterpillar (Noctuidae sp.) at Graham's Quinta dos Malvedos Vineyard.
  • Photo: Silver butter catfish (Schilbe intermedius) at L'aquarium tropical du palais de la Porte DorŽe.
  • Picture of a vulnerable Madagascar spider tortoise (Pyxis arachnoides oblonga) at the Fresno Chaffe Zoo.
  • Photo: A red squirrel (Sciurus vulgaris fuscoater) at Zoopark Zajezd.
  • Photo: A female spot-breasted oriole (Icterus pectoralis) from a private collection in St. Augustine, Florida.
  • Picture of a partial albino red-tailed hawk (Buteo jamaicensis) at the Minnesota Zoo.
  • Photo: A bronze mantella (Mantella betsileo) at Omaha's Henry Doorly Zoo.
  • Picture of a jacky dragon (Amphibolurus muricatus) at the Healesville Sanctuary.
  • Photo: A Brongersma's toad (Barbarophryne brongersmai) at Aquarium Berlin.
  • Picture of a vulnerable Hispaniolan elegant slider (Trachemys decorata) from a private collection in the Dominican Republic.
  • Photo: An eastern diamondback rattlesnake (Crotalus adamanteus) at Reptile Gardens.
  • Photo: An endangered (IUCN) and federally endangered snow leopard (Panthera uncia) at the Miller Park Zoo.
  • Photo: A clown leporinus (Leporinus klausewitzi) at the Denver Zoo.
  • Picture of an inshore lizardfish (Synodus foetens) at Gulf Specimen Marine Lab and Aquarium.
  • Picture of a Colombian color morph of a harlequin poison frog (Oophaga histrionica) at the Cali Zoo.
  • Photo: Mating southern green stink bugs (Nezara viridula virgifera) at the University of Florida in Gainesville.
  • Picture of a spectacled duck (Speculanas specularis) at the Sylvan Heights Bird Park.
  • A Northern mockingbird (Mimus polyglottos polyglottos) at the Santa Barbara Wildlife Care Network.
  • Picture of a diamond firetail (Stagonopleura guttata) at Healesville Sanctuary.
  • Photo: A critically endangered Philippine eagle (Pithecophaga jefferyi) at the Philippine Eagle Center.
  • Puerto Rican crested toad (Peltophryne lemur) at the Sedgwick County Zoo in Wichita, Kansas. (IUCN: Critically Endangered, and federally threatened)
  • Picture of a spotted python (Antaresia maculosa) from a private collection.
  • Pictrure of Raphael, an endangered 8 1/2 week-old Bengal tiger cub (Panthera tigris tigris) at Alabama Gulf Coast Zoo.
  • Picture of a female evening bat (Nycticeius humeralis) at the WildCare Foundation.
  • A Mohol bushbaby (Galago moholi) at the Cleveland Metroparks Zoo.
  • Picture of a critically endangered blue-eyed black lemur (Eulemur flavifrons) named "Presley" at the Duke Lemur Center.
  • An endangered (IUCN) and federally endangered chimpanzee (Pan troglodytes) at Rolling Hills Wildlife Adventure near Salina, KS.
  • Picture of a vulnerable Madagascar spider tortoise (Pyxis arachnoides oblonga) at the Fresno Chaffe Zoo.
  • Photo: An endangered female gray-bellied marsupial frog (Gastrotheca litonedis) at Centro Jambatu in Quito, Ecuador.
  • Photo: Common two-banded sea bream, Diplodus vulgaris, saltwater fish at the Vasco da Gama Aquarium.
  • An eastern screech owl (Megascopes asio asio) at The Wildlife Center in Espanola, NM.
  • Picture of an Almirante morph of a strawberry poison frog (Oophaga pumilio) from a private collection.
  • Photo: Hepatic tanager (Piranga flava) at the National Aviary of Colombia (Aviario Nacional de Colombia).
  • Picture of a spectacled duck (Speculanas specularis) at the Sylvan Heights Bird Park.
  • Photo: A female and male purple honeycreeper (Cyanerpes caeruleus) at the Nashville Zoo.
  • Photo: A small Indian kite (Milvus migrans govinda) at the Assam State Zoo and Botanical Garden in India.
  • Photo: A rana de Cristal de María Elena (Chimerella mariaelenae) at Balsa de los Sapos.
  • Photo: A mole salamander (Ambystoma talpoideum) from a private collection.
  • Cape cobra (Naja nivea) at the LA Zoo.
  • Photo: A tripoli aoudad (Ammotragus lervia fassini) at Wroclaw Zoo. This species is listed as vulnerable according to IUCN.
  • A red salamander (Pseudotriton ruber) at Zoo Atlanta, Atlanta, Georgia.
  • Picture of an endangered red panda (Ailurus fulgens fulgens) at the Lincoln Children's Zoo.
  • Photo: Banded lapwing (Vanellus tricolor) at Moonlit Sanctuary.
  • Picture of a many-lined salamander (Stereochilus marginatus) from a private collection.
  • Photo: Red-legged tinamou (Crypturellus erythropus) at the National Aviary of Colombia.
  • Golden pheasants (Chrysolophus pictus) at the Bramble Park Zoo.
  • Photo: A red-flat clawed hermit crab (Pagarus impressus) at Gulf Specimen Marine Lab and Aquarium.
  • Photo: A cactus ferruginous pygmy owl (Glaucidium brasilianum cactorum) at Wild at Heart raptor rehabilitation center.
  • Photo: A Rio Cauca caecilian or rubber eel (Typhlonectes natans) at the Detroit Zoo.
  • Southern vested tamandua (Tamandua tetradactyla straminea) at Tampa’s Lowry Park Zoo.
  • Photo: A soybean plant (Glycine max) faces off against a roundup-resistant horseweed plant at the University of Nebraska's East Campus.
  • Picture of a russet angelfish (Centropyge potteri) at Pure Aquariums.
  • Photo: A photographer prepares for a photo shoot at the Alaska SeaLife Center in Seward, AK.
  • An eastern yellow-billed hornbill (Tockus flavirostris flavirostris) at the Indianapolis Zoo.
  • Photo: Common spadefoot toad (Pelobates fuscus) at the Plzen Zoo in the Czech Republic.
  • Picture of a brown tufted capuchin (Cebus apella apella) at the Rolling Hills Wildlife Adventure.
  • Photo: Three lined girdled lizard, Zonosaurus trilineatus, one of just two in captivity, at the Plzen Zoo.
  • Photo: A lesser siren (Siren cf. intermedia) collected from a tributary of the Choctawhatchee River, Florida.
  • Photo: Arctic cookie stars, Ceramaster arcticus, at the Alaska SeaLife Center.
  • Photo: A female brown eared pheasant (Crossoptilon mantchuricum) from a private collection.
  • Photo: A male lesser bird-of-paradise (Paradisaea minor) at the Dallas World Aquarium.
  • Photo: A white-collared kingfisher (Todiramphus chloris humii) at Jurong Bird Park, part of Wildlife Reserves Singapore.
  • A vulnerable Pesquet's parrot (Psittrichas fulgidus psittrichadini) at the Houston Zoo.
  • Portrait of male and female northern bobwhite quail (Colinus virginianus).
  • Photo: A purple heron (Ardea purpurea manilensis) at the Plzen Zoo.
  • Photo: Blue dasher (Pachydiplax longipennis) at the Trinity Western University.
  • A familiar bluet (Enallagma civile) a damselfly from Dieken Prairie near Undadilla, Nebraska.
  • Picture of federally threatened spectacled eiders (Somateria fischeri) at the Alaska SeaLife Center.
  • Picture of the feet of a great blue heron (Ardea herodias occidentalis) at the National Aviary breeding center.
  • Juvenile mink (Neovison vison).
  • Photo: A central bright-eyed frog (Boophis rappiodes) from the Plzen Zoo in the Czech Republic.
  • Pearl River map turtle (Graptemys gibbonsi) at the National Mississippi River Museum and Aquarium in Dubuque, IA.
  • Photo: A black wildebeest or White-tailed gnu (Connochaetes gnou) at the Singapore Zoo.
  • A vulnerable (IUCN) Tarahumara leopard frog (Lithobates tarahumarae) at the Arizona-Sonora Desert Museum.
  • Photo: Walking stick (Aretaon sp. "Palawan") at the Budapest Zoo.
  • A tiger rat snake (Spilotes pullatus) profile at the Gladys Porter Zoo.
  • Photo: Brazilian horned frog (Ceratophrys aurita) from a private collection.
  • Photo: An Australian helmeted gecko (Diplodactylus galeatus) from a private collection.
  • Photo: Great crested newt, Triturus cristatus carnifex, at the Vasco da Gama Aquarium.
  • Photo: A female wrinkled hornbill (Aceros corrugatus rugosus) at Penang Bird Park.
  • Picture of a bay duiker (Cephalophus dorsalis) named Billy Bob at the Ellen Trout Zoo.
  • Photo: A three-toed box turtle (Terrapene carolina triunguis) from the Houston Zoo.
  • Photo: An Australian sea apple (Pseudocolochirus axiologus) at the Dallas World Aquarium.
  • A critically endangered (IUCN) and federally endangered red wolf (Canis rufus gregoryi) at the Great Plains Zoo.
  • Cape Fear shiners (Notropis mekistocholas) a federally endangered species at a native stream fish breeding center. (IUCN: Endangered, US: Endangered)
  • Picture of a toucan barbet (Semnornis ramphastinus) at the National Aviary breeding center in Palmar, Colombia.
  • Photo: A sunda scops-owl (Otus lempiji lempiji) at Penang Bird Park.
  • Photo: Knobby brain coral (Pseudodiploria clivosa) at Mote Tropical Research Laboratory.
  • Photo: A crab-eating macaque (Macaca fascicularis fascicularis) at Monkey Forest.
  • Photo: An Atlantic Central American milksnake (Lampropeltis triangulum polyzona) at Pet Paradise.
  • Photo: Alpine field mouse (Apodemus alpicola) at the Plzen Zoo in the Czech Republic.
  • Photo: Yellow-crowned canary (Serinus flavivertex) in Santa Cruz, Tenerife, Spain.
  • Picture of a male spot-billed toucanet (Selenidera maculirostris) at the Dallas World Aquarium.
  • Photo: California Mussel (Mytilus californianus) at the University of California, Davis.
  • Photo: A southern cave crayfish (Orconectes australis) collected near Huntsville, Alabama, by the West Liberty University Crayfish Conservation Lab.
  • A yak (Bos grunniens) at the Sedgwick County Zoo in Wichita, Kansas.
  • A federally endangered timber wolf (Canis lupus) named Kenai at the New York State Zoo.
  • A western massasauga (Sistrurus tergeminus tergeminus) at Reptile Gardens.
  • Photo: A Hong Kong whipping frog (Polypedates megacephalus) from the wild in Cambodia.
  • Photo: A Western marbled velvet gecko (Oedura fimbria) from a private collection.
  • Photo: A Philippine scops owl (Otus megalotis) at the Plzen Zoo in the Czech Republic.
  • Picture of a yellow-fin fairy wrasse (Cirrhilabrus flavidorsalis) at Pure Aquariums.
  • Photo: A yellow-footed green pigeon (Treron phoenicopterus annamensis) at Phnom Tamao Wildlife Rescue Center - Wildlife Alliance.
  • Picture of a dusky turtle dove (Streptopelia lugens) in Choussy, France.
  • Sanguine poison frog (Allobates zaparo) from a private collection.
  • Photo: A starry flounder (Platichthys stellatus) at the Alaska SeaLife Center.
  • A male Eurasian blackcap (Sylvia atricapilla) at the Environmental Education Center of the Ribeiras de Gaia.
  • A mata mata (Chelus fimbriatus) at Reptile Gardens.
  • Picture of a rosy wolfsnail (Euglandina rosea) at the Central Florida Zoo.
  • Picture of an albino porcupine (Erethizon dorsatum) named Halsey at the Nebraska Wildlife Rehab in Louisville, NE.
  • Photo: European bee-eater (Merops apiaster) from the Budapest Zoo.
  • Photo: A belted sandfish (Serranus subligarius) at Gulf Specimen Marine Lab.
  • Hairy bush viper (Atheris hispida) at Zoo Atlanta.
  • Photo: Blue-spotted ribbontail ray (Taeniura lymma) at the Lisbon Aquarium, Oceanario de Lisboa.
  • Photo: Indian rat snake, Ptyas mucosus, at the Assam State Zoo in Guwahati, Assam, India.
  • Picture of a potto (Perodicticus potto) at the Cleveland Metroparks Zoo.
  • Osage copperhead (Agkistrodon contortrix phaeogaster) at the Tulsa Zoo.
  • Photo: A male mindanao wrinkled hornbill, Rhabdotorrhinus leucocephalus, at Talarak Foundation.
  • Photo: A spectacled cobra (naja naja) at Reptile Gardens.
  • Photo: A male and female Cheer pheasant (Catreus wallichii) at the Conservation Breeding Center for Pheasants and Herbivores in Kurseong, West Bengal, India.
  • A crested toad (Bufo typhonius) at the Houston Zoo.
  • A sawfin shiner (Notropis sp.) at Conservation Fisheries in Knoxville, Tennessee.
  • Picture of endangered Banggai cardinalfish (Pterapogon kauderni) at Omaha's Henry Doorly Zoo and Aquarium.
  • Picture of a Forest giant owl butterfly (Caligo eurilochus) at the Saint Louis Zoo.
  • A vulnerable (IUCN) and federally endangered California tiger salamander (Ambystoma californiense) at the Fresno Cahffee Zoo, Fresno, California.
  • Photo: A masked bobwhite quail (Colinus virginanus ridgwayi) at the Phoenix Zoo, Phoenix, Arizona.
  • A giant hispanolian anole (Anolis ricordi) at the Omaha Zoo.
  • Picture of a javan munia (Lonchura leucogastroides) from a private collection.
  • Photo: BocourtÕs arboreal alligator lizard (Abronia vasconcelosii) at Urban Ark Conservation
  • Photo: A vesper sparrow (Pooecetes gramineus) at the Iowa Bird Rehabilitation.
  • Photo: A collared kingfisher (Todiramphus chloris collaris) at the Avilon Zoo.
  • An acorn woodpecker (Melanerpes formicivorus) at Wildlife Images, an animal rehabilitation center near Merlin, Oregon.
  • Picture of an endangered (IUCN) and federally endangered, Grand Cayman blue iguana (Cyclura lewisi) at the Sedgwick County Zoo in Wichita, Kansas.
  • Photo: A WoodworthÕs frog (Limnonectes woodworthi) at the University of the Philippines.
  • Photo: An American wolffish (Anarhichas lupus) at the Maine State Aquarium in West Boothbay, ME.
  • A raccoon dog (Nyctereutes procyonoides) named Thor at Zoo Atlanta. Engaging and curious but skittish, the raccoon dog was said to be a shape shifter according to ancient Japanese legend.
  • Picture of a vulnerable male Congo peacock (Afropavo congensis) at the Saint Louis Zoo.
  • A Florida cottonmouth (Agkistrodon piscivorus conanti) at the Archbold Biological Station.
  • Photo: The melanistic (dark phase) of a booted eagle (Hieraaetus pennatus) at Sia, the Comanche Nation Ethno-Ornithological Initiative.
  • Picture of a four-horned chameleon (Chamaeleo quadricornis quadricornis) at the Saint Louis Zoo.
  • Picture of a vulnerable male lesser white-fronted goose (Anser erythropus) at Sylvan Heights Bird Park.
  • Photo: A male Violaceous euphonia (Euphonia violacea) at Zoopark Zajezd.
  • A Javan leopard cat (Prionailurus javanensis javanensis) in Jakarta, Indonesia in the care of PT. Alam Nusantara Jayatama.
  • Photo: A squacco heron (Ardeola ralloides) at the Prague Zoo.
  • Photo: A greater forest wallaby (Dorcopsis hageni) from a private collection.
  • Photo: Critically endangered Nubian flap-shelled turtle (Cyclanorbis elegans) at Wroclaw Zoo.
  • A Southern screamer (Chauna torquata) at the Kansas City Zoo.
  • Photo: The endangered Florida perforate reindeer lichen (Cladonia perforata) at Archbold Biological Station.
  • Photo: A silver-eyed cat gecko (Aeluroscalabotes felinus) at Conservation Fisheries.
  • Photo: Hepatic tanager (Piranga flava) at the National Aviary of Colombia (Aviario Nacional de Colombia).
  • Picture of a hooded parrot (Psephotellus dissimilis) at Sylvan Heights Bird Park (this species was previously Psephotus dissimilis.
  • Photo: A squacco heron (Ardeola ralloides) at the Prague Zoo.
  • Picture of a vulnerable Renard's meadow viper (Vipera renardi) at the St. Louis Zoo.
  • Picture of a Sonoran mountain kingsnake (Lampropeltis pyromelana knoblochi) at Pet Paradise.
  • Photo: Reed vole (Microtus fortis) at the Plzen Zoo in the Czech Republic.
  • Picture of a pintail wrasse (Cirrhilabrus lanceolatus) at Nebraska Aquatic Supply.
  • Picture of a Lewis' moon snail (Polinices lewisii) at the Monterey Bay Aquarium.
  • Picture of a Japanese mountain hawk-eagle (Nisaetus nipalensis orientalis) at the LA Zoo.
  • Photo: A male archduke (Lexias pardalis dirteana) at Malacca Butterfly and Reptile Sanctuary.
  • Picture of a zebra dove (Geopelia striata) from a private collection in the Dominican Republic.
  • Photo: Cape parrot, Poicephalus robustus, at Loro Parque Fundacion.
  • Photo: A black striped skink (Amphiglossus macrocercus) at the Plzen Zoo.
  • A Clark's nutcracker (Nucifraga columbiana) at the University of Nebraska-Lincoln.
  • Peru marsupial frog (Gastrotheca peruana) at the National Aquarium in Baltimore.
  • Photo: An European greenfinch (Carduelis chloris aurantiiventris) at Centro Fauna Selvatica "Il Pettirosso".
  • A red shiner (Cyprinella lutrensis).
  • Photo: Andaman Island stick insect (Sceptrophasma hispidula) from the Plzen Zoo in the Czech Republic.
  • Picture of an Eastern collared lizard (Crotaphytus collaris) at the Saint Louis Zoo.
  • Photo: A decorator crab (Stenocionops furcata coelata) at Gulf Specimen Marine Lab.
  • Picture of a long clawed hermit crab (Pagurus longicarpus) at Gulf Specimen Marine Lab and Aquarium.
  • Picture of a crab-eating fox (Cerdocyon thous) named Pepito at the Summit Municipal Park in Gamboa, Panama.
  • Photo: An endangered sleeping Ecuadorian monkey frog (Callimedusa ecuatoriana) at Centro Jambatu in Quito, Ecuador.
  • Picture of a smew (Mergellus albellus) at the Kansas City Zoo.
  • Picture of a small cabbage white butterfly (Pieris rapae rapae) at Healesville Sanctuary.
  • Picture of a granite spiny lizard (Sceloporus orcutti) at the Santa Barbara Zoo.
  • A hosue gecko (Hemidactylus mabouia) collected in Chitengo Camp, in Gorongosa National Park.
  • Photo: Single-wattled cassowary (Casuarius unappendiculatus rufotinctus) at Taman Safari.
  • Picture of a Siamese fireback pheasant (Lophura diardi) at Pheasant Heaven, a private pheasant breeding center near Clinton, NC.
  • Photo: A Harrison's antelope squirrel (Ammospermophilus harrisii) at the LA Zoo.
  • lack crocodile newt (Tylototriton taliangensis) at the National Mississippi River Museum and Aquarium in Dubuque, IA.
  • Photo: An endangered female Darwin’s frog (Rhinoderma darwinii) at the Santiago Zoo in Chile.
  • Picture of a vulnerable male Siamese fighting fish (Betta splendens) at Pure Aquariums.
  • Photo: A Guam rail (Hypotaenidia owstoni) at the Santa Fe College Teaching Zoo. This species is extinct in the wild.
  • A boxelder bug (Boisea trivittata).
  • A white-eyed imperial pigeon (Ducula perspicillata perspicillata) at the Houston Zoo.
  • A little grassbird (Megalurus gramineus) from a Private Collection, in Queensland, Australia.
  • Picture of a lesser snow goose (Chen caerulescens caerulescens).
  • Photo: A fouling anemone (Aiptasiomorpha texaensis) at Gulf Specimen in Panacea, Florida.
  • Picture of a gray mouse lemur (Microcebus murinus) at the Duke Lemur Center.
  • Photo: Western sooty grunter (Hephaestus jenkinsi) at the Freshwater Ecology and Marine Biology Dept. at Templestowe College.
  • A razorback sucker (Xyrauchen texanus), from the Colorado River System. (US: Endangered; IUCN: Critically endangered)
  • A curve-billed thrasher (Toxostoma curvirostre) named Albon at The Living Desert in Palm Desert, California.
  • A lesser goldfinch (Carduelis psaltria) at the Brown Ranch, Texas.
  • Picture of an oriole blackbird (Gymnomystax mexicanus) at the National Aviary breeding center in Palmar, Colombia.
  • Relict darter (Etheostoma chienense) a federally threatened species at Conservation Fisheries, a native stream fish breeding center.
  • Photo: A red bellied parrot (Poicephalus rufiventris) at the Jurong Bird Park.
  • A giant leaf-toed gecko (Hemidactylus giganteus) from a private collection.
  • A spotted salamander (Ambystoma maculatum) at Zoo Atlanta, Atlanta, Georgia.
  • Photo: A Torresian imperial pigeon (Ducula spilorrhoa tarara) at the Plzen Zoo.
  • Photo: Desert pocket mouse (Chaetodipus penicillatus) in the black phase from Greenlee County, AZ. This species lives on dark lava flows and its fur matches its habitat well.
  • Photo: A Vietnamese white cloud minnow (Tanichthys micagemmae) photographed at Zoo Plzen.
  • Golden-headed lion tamarin (Leontopithecus chrysomelas) at the Riverside Zoo. (IUCN: Endangered)
  • A federally threatened New Mexico ridge-nosed rattlesnake, Crotalus willardi obscurus, at the Arizona Sonora Desert Museum.
  • Photo: A starlight Bristlenose (Ancistrus dolichopterus) at Singapore Zoo.
  • Photo: A common house cricket (Acheta domestica).
  • Picture of an endangered (IUCN) and federally endangered Malayan tapir (Tapirus indicus).
  • Juvenile American bullfrog (Lithobates catesbeiana) at Jurong Bird Park, part of Wildlife Reserves Singapore.
  • Baron's green racer (Philodryas baroni) at the Woodland Park Zoo.
  • A red legged frog (Rana aurora) at the Oregon Zoo.
  • A critically endangered (IUCN) and federally endangered, injured Kemp's ridley sea turtle (Lepidochelys kempii) at the Gladys Porter Zoo.
  • Picture of White Cloud Mountain minnow (Tanichthys albonubes) at the Tulsa Zoo.
  • Smooth-sided toad (Rhaebo guttatus) at the National Aquarium in Baltimore.
  • Picture of an endangered rowi kiwi or okarito kiwi (Apteryx rowi) at the West Coast Wildlife Centre in Franz Josef Glacier, New Zealand.
  • Abbott's cockatoo (Cacatua sulphurea abbotti) at Loro Parque Fundacion.
  • Photo: Florida bush katydid (Stilpnochlora couloniana) at the Exmoor Zoo.
  • Picture of an endangered (IUCN) and federally endangered mature male drill (Mandrillus leucophaeus) named Lyle at Zoo Atlanta.
  • Photo: Texas pimpleback mussel (Cyclonaias petrina) from the Crustacean and Molluskan Ecology Lab at Auburn University.
  • Photo: A critically endangered 18-year-old male tamaraw or Mindoro dwarf buffalo (Bubalus mindorensis) at Tamaraw Gene Pool Farm.
  • Picture of a common collared lizard (Crotaphytus collaris) at the Sedgwick County Zoo in Wichita, Kansas.
  • Photo: Crested Goshawk (Accipiter trivirgatus extimus) at the Avilon Zoo.
  • Photo: A black eagle (Ictinaetus malalensis malalensis) at a private collection in Jakarta, Indonesia.
  • A furrowed wood turtle (Rhinoclemmys areolata) at the Chapultepec Zoo in Mexico City.
  • A musk ox (Ovibos moschatus moschatus) at the University of Alaska in Fairbanks, AK.
  • Picture of a Hogchoker (Trinectes maculatus) at Gulf Specimen Marine Lab and Aquarium.
  • Photo: A masked greenling (Hexagrammos octogrammus) at the Alaska SeaLife Center.
  • Photo: A Wagner's gerbil, Gerbillus dasyurus, at the Plzen Zoo in the Czech Republic.
  • Photo: A Los Tayos rocket frog (Hyloxalus nexipus) at Balsa de los Sapos.
  • Picture of a 29-year-old endangered male Asian elephant (Elephas maximus) named Billy at the LA Zoo.
  • Everglades ratsnake (Elaphe obsoleta rossalleni) at the Omaha Zoo.
  • A male Atlas beetle (Chalcosoma atlas) at the Omaha Henry Doorly Zoo, Omaha, Nebraska.
  • Picture of a North American ruddy duck (Oxyura jamaicensis) at Sylvan Heights Bird Park.
  • Photo: Red turban snail (Pomaulax gibberosus) at the Dallas Children's Aquarium.
  • Picture of an endangered (IUCN) and federally endangered Malayan tapir (Tapirus indicus).
  • Picture of a vulnerable long-tailed duck or oldsquaw (Clangula hyemalis) in summer plumage at Patuxent Wildlife Research Center.
  • A Swainson's hawk (Buteo swainsoni) at the World Bird Sanctuary.
  • Photo: Bearded vulture (Gypaetus barbatus) at Parco Natura Viva.
  • A painted wood turtle (Rhinoclemmys pulcherrima) at the Lincoln Children's Zoo, Lincoln, Nebraska.
  • A Tuxtlan jumping pitviper or Olmecan pitviper (Atropoides olmec) at the Chapultepec Zoo, Mexico City, Mexico.
  • Picture of a Rio Grande siren (Siren intermedia) at the San Antonio Zoo.
  • A splendid leaf frog (Cruziohyla sylviae) at the National Aquarium in Baltimore.
  • Photo: Northern prairie lizard (Sceloporus consobrinus) collected in Cherry County, Nebraska.
  • Photo: An Eastern grass owl (Tyto longimembris amauronota) at the Avilon Zoo.
  • Picture of largescale four-eyed fish (Anableps anableps) at the Oklahoma City Zoo.
  • Photo: An adult female worker European paper wasp (Polistes dominula) at Cedar Point Biological Station.
  • A sunbittern (Eurypyga helias ) at the Cincinnati Zoo.
  • Picture of round pearlshells (Glebula rotundata) collected from the Chipola River near Wewahitchka, Florida.
  • A brown anole (Anolis sagrei) at the Audubon Zoo in New Orleans, Louisiana.
  • Photo: A California desert tortoise (Gopherus agassizii agassizii) named Flower, at California Science Center in Los Angeles, California.
  • Picture of a tailless whipscorpion (Phrynus marginemaculatus) at the Central Florida Zoo.
  • A short-tailed weasel (Mustela erminea cicognanii) at the New York State Zoo.
  • A tufted puffin (Fratercula cirrhata) at the Omaha Zoo.
  • An eastern gray squirrel (Sciurus carolinensis carolinensis), at Goose Creek Wildlife Sanctuary, Inc., a wildlife rescue center in Tallahassee, Florida.
  • A vulnerable (IUCN) giant Asian pond turtle (Heosemys grandis) at the Phoenix Zoo.
  • Photo: A great kiskadee (Pitangus sulfuratus maximiliani) at BioParque do Rio.
  • Photo: A vulnerable dwarf pea pufferfish (Carinotetraodon travancoricus) at a private collection in Gainesville, Florida.
  • Albino green frog (Lithobates clamitans) at the National Aquarium in Baltimore.
  • A moluccan imperial pigeon (Ducula perspicillata perspicillata) at the Houston Zoo.
  • A striped skunk (Mephitis mephitis).
  • Harley the federally threatened Queensland koala (Phascolarctos cinereus adustus) recovers from two broken legs at the Australia Zoo Wildlife Hospital in Queensland. He was hit by a car, which is a common occurrence with koalas and fatal for many.
  • A vulnerable North American wood turtle (Glyptemys insculpta) from a private collection.
  • Photo: Two Balsas splitfins (Ilyodon whitei) at Zoo Plzeň.
  • Picture of an armored sea star (Astropecten armratus) at the REEF, at the University of California, Santa Barbara.
  • A juvenile red rat snake (Elaphe guttata) at the Archbold Biological Station.
  • Photo: A juvenile male giant stick insect (Spinohirasea bengalensis) at the Moscow Zoo.
  • Photo: A chameleon (Calumma hilleniusi) in Madagascar.
  • Picture of a brown spotted pitviper or Chinese habu pitviper (Protobothrops mucrosquamatus) at the St. Louis Zoo.
  • An Angolan python (Python anchietae) at the Omaha Zoo.
  • Photo: A black piranha (Serrasalmus rhombeus) at Shark Reef Aquarium at Mandalay Bay, Las Vegas, NV.
  • Photo: Brazilian blue and red tarantula (Avicularia geroldi) at the Bugarium at the Albuquerque BioPark.
  • Picture of a critically endangered (IUCN) and federally endangered Sumatran rhinoceros (Dicerorhinus sumatrensis) at the Cincinnati Zoo.
  • Photo: Red-spot assassin bug (Platymeris laevicollis) at the Bugarium at the Albuquerque BioPark.
  • Photo: A vulnerable bare faced curassow, Crax fasciolata, at the Faunia zoo in Madrid, Spain.
  • An endangered Bob's robber frog (Craugastor punctariolus) at Zoo Atlanta.
  • Photo: A ferruginous hawk (Buteo regalis) at the Sutton Avian Research Center.
  • Picture of South-American comb ducks (Sarkidiornis melanotos sylvicola) at Sylvan Heights Bird Park.
  • Photo: A LeislerÕs bat, Nyctalus leisleri, at Wildwood Trust near Canterbury, England.
  • Photo: An Eastern screech owl (Megascops asio naevius) at the Carolina Waterfowl Rescue.
  • A lesser goldfinch (Carduelis psaltria) at the Brown Ranch, Texas.
  • Photo: A male Petter's chameleon (Furcifer petteri) from a private collection in St. Augustine, Florida.
  • Photo: An Eastern kingbird (Tyrannus tyrannus) at the Wildlife Rescue Center of Minnesota.
  • A vulnerable African elephant (Loxodonta africana) at the Indianapolis Zoo.
  • Photo: A lesser redpoll (Acanthis cabaret) at Zoo Plzeň.
  • Photo: Guianan toucanet (Selenidera piperivora) from Le Parc des Oiseaux in Villars Les Dombes, France.
  • Photo: Dark fishing spider (Dolomedes tenebrosus) at the Audubon Insectarium.
  • Picture of a female eastern towhee (Pipilo erythrophthalmus) at Tall Timbers Research Station and Land Conservancy.
  • Photo: Chromidotilapia melaniae at L'aquarium tropical du palais de la Porte DorŽe.
  • Picture of a Haitian curlytail lizard (Leiocephalus personatus mentalis) at the Parque Zoologico Nacional in Santo Domingo, Dominican Republic.
  • Photo: A Snake River cutthroat trout (Oncorhynchus clarkii behnkeli) at the Schramm Education Center near Gretna, NE.
  • Photo: Flower beetles (Mecynorhina polyphemus confluens) at the Budapest Zoo.
  • Photo: A New Guinea bronzewing (Henicophaps albifrons) at Ragunan Zoo in Jakarta, Indonesia.
  • Photo: Small Indian civet (Viverricula indica) at the Assam State Zoo in Guwahati, Assam, India.
  • Photo: Saffron cod (Eleginus gracilis) at the Alaska SeaLife Center.
  • Picture of a federally endangered jaguar, Panthera onca, at the Omaha Henry Doorly Zoo.
  • Picture of endangered pileated gibbons, including an eight-month-old infant (Hylobates pileatus) at the Gibbon Conservation Center
  • Photo: Blushing star coral (Stephanocoenia intersepts)at Mote Tropical Research Laboratory.
  • A giant water beetle (Belostomatidae sp.)
  • Picture of a twospot turkeyfish (Dendrochirus biocellatus) at Omaha's Henry Doorly Zoo and Aquarium.
  • A splendid leaf frog (Cruziohyla sylviae) at the National Aquarium in Baltimore.
  • Picture of two New Zealand kakas (Nestor meridionalis septentrionalis) at the Auckland Zoo. This species is listed as endangered by IUCN.
  • Photo: A male Roberta's toothcarp or Roberta's killifish (Valencia robertae) from Greece at the Plzen Zoo. This species is critically endangered and occurs in two small rivers in Greece: lower Pinios in northern Peloponnese and Mornos Rivers in southern mainland of Greece.
  • Photo: A Florida water snake (Nerodia fasciata pictiventris) at Reptile Gardens.
  • Photo: A pair of pacific banana slugs (Ariolimax columbianus) at Northwest Trek Wildlife Park in Eatonville, Washington.
  • Picture of a male Chilean pintail (Anas georgica spinicauda) at Sylvan Heights Bird Park.
  • Photo: A gopher rockfish (Sebastes carnatus) at the Downtown Aquarium in Denver, Colorado.
  • Picture of a Texas coral snake (Micrurus tener) at the Fort Worth Zoo.
  • Bryn, the federally endangered Columbia Basin pygmy rabbit (Brachylagus idahoensis), sat for this portrait in 2007 at the Oregon Zoo in Portland, Oregon. She was one of two female Columbia Basin pygmy rabbits left, the end of the line for this species of animals. Since there are no males left, this means only animals intercrossed with the Idaho race will survive. She died in 2008, marking the end of her genetic line. This subpopulation lost its sagebrush habitat as the land was developed for agriculture in the state of Washington.
  • Photo: A prickly gecko (Heteronotia binoei) at Omaha's Henry Doorly Zoo.
  • Photo: A female widow skimmer dragonfly (Libellula luctuosa) photographed at Spring Creek Prairie Audubon Center near Denton, NE. This animal was originally collected from Bobcat Prairie near Denton, NE.
  • Portrait of a female northern bobwhite quail (Colinus virginianus).
  • Photo: A brown headed parrot (Poicephalus cryptoxanthus tanganyikae) at Plzen Zoo.
  • Photo: A critically endangered Javan black-winged starling (Acridotheres melanopterus) at Jakarta Natural Resource Conservation Center.
  • Photo: A Naked sand darter (Ammocrypta beanii) at the Auburn University Natural History Museum.
  • Photo: Horned screamer (Anhima cornuta) at the National Aviary of Colombia.
  • Photo: A common Suriname toad (Pipa pipa) at Centro Jambatu in Quito, Ecuador.
  • Picture of a baby black vulture (Coragyps atratus) at the WildCare Foundation.
  • Photo: A male masked bobwhite quail (Colinus virginianus ridgwayi) at the Sutton Avian Research Center near Bartlesville, Oklahoma.
  • Picture of a freckled duck (Stictonetta naevosa) at Sylvan Heights Bird Park.
  • A pair of South Georgia king penguins, Aptenodytes patagonicus patagonicus.
  • A Luzon Bleeding heart (Gallicolumba luzonica) at the Columbus Zoo.
  • Gray-banded kingsnake (Lampropeltis alterna) at the Fort Worth Zoo.
  • Photo: An Adenomera cf andreae, from the wild in Manaus, Brazil.
  • Photo: Orange chevron tarantula (Tapinauchenius gigas) at the Moscow Zoo.
  • A Florida box turtle (Terrapene carolina bauri) from a private collection.
  • A federally threatened spectacled caiman (Caiman crocodilus crocodilus) at Omaha's Henry Doorly Zoo.
  • Photo: An Eastern bottle-nosed mormyrid (Mormyrus longirostris) at the Singapore Zoo.
  • A Magellanic penguin (Spheniscus magellanicus) at the Cincinnati Zoo.
  • Picture of Rajah, an endangered male, white Bengal tiger (Panthera tigris tigris) at Alabama Gulf Coast Zoo.
  • Photo: A timor monitor (Varanus timorensis) at Taman Mini Indonesia Indah.
  • Photo: Long-eared jerboa (Euchoreutes naso) at the Moscow Zoo.
  • Photo: A male central greenside darter (Etheostoma blennioides pholidotum) collected from Big Darby Creek near Circleville, OH.
  • Federally endangered woodland caribou (Rangifer tarandus caribou) named Costello. He is eight years old.
  • An Thailand golden fringe tarantula (Ornithoctonus aureotibialis), collected from Surat Thani location, from a private collection.
  • A vulnerable (IUCN) and federally endangered California tiger salamander (Ambystoma californiense) at the Fresno Cahffee Zoo, Fresno, California.
  • Tiger rattlesnake (Crotalus tigris) at the Arizona-Sonora Desert Museum.
  • Picture of a West African lungfish (Protopterus annectens) at the Oklahoma City Zoo
  • Photo: A dragon headed katydid (Eumegalodon blanchardi) at the Omaha Henry Doorly Zoo, Omaha, Nebraska.
  • Photo: A female RiedelÕs eclectus parrot, Eclectus roratus riedeli, at Loro Parque Fundacion.
  • Picture of a northwestern garter snake (Thamnophis sirtalis) at the Oregon Zoo.
  • Picture of a federally endangered black caiman (Melanosuchus niger) at the St. Augustine Alligator Farm.
  • Photo: A walleye surfperch (Hyperprosopon argenteum) at California Science Center in Los Angeles, California.
  • Arizona black rattlesnake (Crotalus oreganus cerberus).
  • Photo: Palm cockatoo (Probosciger aterrimus) at the Houston Zoo.
  • Picture of an Eastern ribbon snake or common ribbon snake (Thamnophis sauritus sauritus) at the National Mississippi River Museum and Aquarium in Dubuque, Iowa.
  • Photo: Blue mahseer (Neolissochilus stracheyi) at Zoo Negara.
  • Picture of a New York weasel (Mustela frenata noveboracensis) at the John Ball Zoo in Grand Rapids, Michigan.
  • Picture of a mealy Amazon parrot (Amazona farinosa) at Parque Zoologico Nacional, the zoo in Santo Domingo, Dominican Republic.
  • Photo: A yellow-crested cockatoo (Cacatua sulphurea parvula) at Ragunan Zoo in Jakarta, Indonesia.
  • Picture of Katrina, a federally endangered, black phased African leopard (Panthera pardus pardus), at the Alabama Gulf Coast Zoo.
  • Cope's gray tree frog (Hyla chrysoscelis) at the Detroit Zoo.
  • Photo: Red bamboo snake (Oreocryptophis porphyraceus pulchra) from a private collection.
  • Photo: An Eastern eyed click beetle (Alaus oculatus) at the Audubon Insectarium, part of the Audubon Nature Institute.
  • Photo: A coppersmith barbet (Megalaima haemacephala) at the Jurong Bird Park.
  • Photo: Southwestern speckled rattlesnake (Crotalus mitchellii pyrrhus) at the LA Zoo.
  • Photo: Brawleys Fork crayfish, Cambarus williami, at the Crayfish lab in West Liberty University in West Liberty, WV. This specimen is from Brawney Fork, TN.
  • Photo: Green clinging crab (Mithraculus sculptus) at the Loveland Living Planet Aquarium in Draper, UT.
  • Picture of a crimson-rumped toucanet (Aulacorhynchus haematopygus) at the National Aviary breeding center in Palmar, Colombia.
  • Photo: A rana Mono Amazónica (Agalychnis hulli) at Balsa de los Sapos.
  • Photo: A cape kurper (Sandelia capensis) at Plzen Zoo, in the Czech Republic.
  • Picture of a western black widow spider (Latrodectus hesperus) at Springs Preserve.
  • A vulnerable (IUCN) Tarahumara leopard frog (Lithobates tarahumarae) at the Arizona-Sonora Desert Museum.
  • Picture of a critically endangered Malaysian river painted terrapin (Batagur borneoensis) at Omaha's Henry Doorly Zoo.
  • Photo: A long-tailed chinchilla at the Capital Humane Society in Lincoln.
  • An endangered Carnaby's black cockatoo (Calyptorhynchus latirostris) at the Jurong Bird Park.
  • A Florida cooter (Pseudemys floridana) at the Chapultepec Zoo in Mexico City.
  • Picture of a Great Basin gopher snake (Pituophis catenifer deserticola) at the Toronto Zoo.
  • Picture of a ternate damsel (Amblyglyphidodon ternatensis) at the Oceanario in Palmar, Colombia.
  • Photo: A Plectreurid spider (Plectreurys sp.) at the Audubon Insectarium, part of the Audubon Nature Institute.
  • Photo: A central blue-tongued skink (Tiliqua multifasciata) at the Dallas Zoo.
  • Photo: A 6 month old pale-mandibled aracari (Pteroglossus torquatus erythropygius) at the Dallas World Aquarium.
  • A juvenile Antilles pinktoe (Caribena versicolor) at the Omaha’s Henry Doorly Zoo.
  • Photo: Ferruginous pygmy owl (Glaucidium brasilianum) at the National Aviary of Colombia.
  • Picture of a four-week old, male leopard cat (Prionailurus bengalensis chinensis).
  • A vulnerable (IUCN) Madagascar painted frog (Mantella madagascariensis) from a private collection.
  • Photo: A walleye (Sander vitreum) at the Genoa National Fish Hatchery.
  • An Australian barn-owl (Tyto alba delicatula) at Healesville Sanctuary.
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