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 38,233-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
  • Photo: A Boehme's giant day gecko (Phelsuma madagascariensis boehmei) at the Plzen Zoo.
  • Photo: A turkey vulture (Cathartes aura meridionalis) at Wild at Heart, a raptor rehab center in Cave Creek, AZ.
  • A emperor tamarin (Saguinus imperator imperator) at the Dallas World Aquarium.
  • Photo: A grey-headed kite (Leptodon cayanensis monachus) at BioParque do Rio.
  • Photo: An ovenbird (Seiurus aurocapilla) at the Marathon Wild Bird Center in Marathon, Florida.
  • Picture of a dwarf waterdog (Necturus punctatus) from a private collection.
  • Photo: White-winged parakeet (Brotogeris versicolurus) at Cafam.
  • Photo: A female redline darter (Etheostoma rufilineatum) photographed at the Alabama Aquatic Biodiversity Center in Marion, AL. This fish was collected from Butler Creek, Lauderdale County, AL.
  • Picture of a Gulf Coast water dog (Necturus beyeri) at the Cincinnati Zoo.
  • A boxelder bug (Boisea trivittata).
  • A common five-lined skink (Plestiodon fasciatus) collected from the Conasauga River.
  • Photo: A Irian Jaya carpet python (Morelia spilota variegata) at Seattle Reptiles.
  • Photo: White spotted puffer (Arothron hispidus) at Pure Aquariums.
  • A volcano rabbit (Romerolagus diazi) at Chapultepec Zoo in Mexico City. (IUCN: Endangered)
  • Indian tent turtle (Kachuga tentoria) at the Tennessee Aquarium.
  • Photo: An Iberian magpie (Cyanopica cooki) at the Plzen Zoo.
  • Black crocodile newt (Tylototriton taliangensis) at the National Mississippi River Museum and Aquarium in Dubuque, IA.
  • An Ecuadorian pink tarantula (Pamphobeteus platyomma) at the Cleveland Metroparks Zoo.
  • Picture of a lesser blue-eared glossy starling (Lamprotornis chloropterus) at the Houston Zoo.
  • Photo: Two brittle stars (Ophiothrix sp.) at Aquarium Berlin.
  • Picture of periwinkle snails (Littorina littorea) at the Virginia Aquarium.
  • Picture of Rajah, an endangered, male white Bengal tiger (Panthera tigris tigris) at Alabama Gulf Coast Zoo.
  • Picture of an endangered (IUCN) and federally endangered black-footed ferret (Mustela nigripes) at the Cheyenne Mountain Zoo.
  • A green eye gecko (Gekko smithii) in Jakarta, Indonesia in the care of PT. Alam Nusantara Jayatama.
  • Photo: An Eastern grass owl (Tyto longimembris amauronota) at the Avilon Zoo.
  • Photo: A green bright eyed frog (Boophis viridis) wild caught in Andasibe, Madagascar.
  • Photo: Northern Mexican garter snake (Thamnophis eques megalops) at the Albuquerque BioPark Aquarium.
  • Photo: A red-eared slider (Chrysemys scripta) at the Kansas City Zoo.
  • Photo: Japanese sparrowhawk (Accipiter gularis) at the Avilon Zoo.
  • A Yucatan neotropical rattlesnake (Crotalus tzabcan) at Zoo Atlanta.
  • A Madagascar reed frog ( Heterixalus madagascariensis) from the Plzen Zoo in the Czech Republic.
  • Photo: A critically endangered juvenile yellow-headed box turtle (Cuora aurocapitata aurocapitata) at the Turtle Survival Center.
  • Photo: Giant Emperor or Giant Charaxes (Charaxes castor) at the San Antonio Zoo.
  • Photo: Critically endangered Murray cod (Maccullochella peelii) at the Freshwater Ecology and Marine Biology Dept. at Templestowe College.
  • Photo: A rhinoceros iguana (Cyclura cornuta) at Parco Natura Viva in Bussolengo, Italy.
  • Photo: A Salado salamander (Eurycea chisholmensis) at the Conservation Department of the San Antonio Zoo. This species is listed as vulnerable on the IUCN Red List.
  • Photo: Sonora sucker (Catostomus insignis) at Mora National Fish Hatchery.
  • Mallard (Anas platyrhynchos) ducklings.
  • Picture of a Eurasian eagle owl (Bubo bubo omissus) at the Plzen Zoo in the Czech Republic.
  • Photo: El Muerto Island rattlesnake (Crotalus mitchellii muertensis) at the Arizona-Sonora Desert Museum.
  • A vulnerable (IUCN) and federally endangered, nine-week-old clouded leopard cub (Neofelis nebulosa nebulosa) at the Columbus Zoo.
  • Photo: A juvenile Texas cottontail rabbit (Sylvilagus floridanus alacer) at Houston SPCA’s Wildlife Center of Texas.
  • Yellow-backed morph of a dyeing poison frog (Dendrobates tinctorius) from a private collection.
  • Picture of a leopard seal (Hydrurga leptonyx) named Casey at the Taronga Zoo.
  • Picture of a bateleur eagle (Terathopius ecaudatus) at the LA Zoo.
  • Photo: Kikuyu black and white colobus (Colobus guereza kikuyuensis) at the Lisbon Zoo
  • Picture of a bird poop frog (Theloderma asperum) at the St. Louis Zoo.
  • Photo: A striped newt (Notophthalmus perstriatus) at the Sedgwick County Zoo.
  • Photo: A field mouse.
  • Photo: Slender sea robin (Prionotus scitulus) at Gulf Specimen Marine Lab and Aquarium.
  • Photo: A northern water snake (Nerodia sipedon) from a private collection.
  • An adult female wolf spider (Tigrosa helluo).
  • A yellow-headed blackbird (Xanthocephalus xanthocephalus) at the Wildlife Center in Espanola, New Mexico.
  • A mangrove salt marsh snake (Nerodia clarkii compressicauda) from the wild on Saddlebunch Key, Florida.
  • A long-eared owl (Asio otus tuftsi) at The Wildlife Center in Espanola, NM.
  • A Cuban knight anole (Anolis equestris) at the Houston Zoo.
  • Picture of a black oystercatcher (Haematopus bachmani) at the Monterey Bay Aquarium.
  • Photo: A Senegal flapshell turtle (Cyclanorbis senegalensis) at Safari Park Dvur Kralove.
  • Photo: Spotted scorpionfish (Scorpaena plumieri) at Ripley's Aquarium of Canada.
  • Picture of orange-breasted waxbills (Amandava subflava) from a private collection.
  • Photo: A coral (Acropora tortuosa) at the Downtown Aquarium in Denver, Colorado.
  • A federally endangered yellow-footed rock wallaby (Petrogale xanthopus) at Omaha Zoo's Wildlife Safari Park.
  • Picture of a blue spiny lizard (Sceloporus serrifer cyanogenys) at the Indianapolis Zoo.
  • Picture of a Reichenow's helmeted guineafowl (Numida meleagris reichenowi) at Sylvan Heights Bird Park.
  • Photo: Banded rubber frog (Phrynomantis bifasciatus) from a private collection.
  • A Southern black widow (Latrodectus mactans) at the Audubon Zoo in New Orleans, Louisiana.
  • Picture of a white-spotted gecko (Tarentola annularis) at the Great Bend Brit Spaugh Zoo in Great Bend, Kansas.
  • Picture of Dali, an endangered female great green macaw (Ara ambiguus) at Tracy Aviary.
  • Photo: An Australian saurus crane (Grus antigone gillae) from a private collection in Choussy, France.
  • Photo: A common bronzewing (Phaps chalcoptera) at the Prague Zoo.
  • A harpy eagle (Harpia harpyja) at the Los Angeles Zoo.
  • Picture of a critically endangered Delacour's langur (Trachypithecus delacouri) at the Endangered Primate Rescue Center in Cuc Phuong National Park, Vietnam.
  • Photo: Portraits of 'Orange', the last dusky seaside sparrow (Ammodramus maritimus nigrescens). This species went extinct in 1987, after their last habitats in northeast Florida were ruined by man, from the construction of an expressway to mosquito spraying.
  • Photo: A praying mantis from Bioko Island, Equatorial Guinea.
  • A narrow-bridged musk turtle (Claudius angustatus) at the Chapultepec Zoo in Mexico City.
  • Photo: A male eastern carpenter bee (Xylocopa virginica) wild caught in Lincoln, Nebraska.
  • Photo: Spur-thighed tortoise (Testudo graeca ibera) at Wroclaw Zoo.
  • Photo: An iris lorikeet (Psitteuteles iris iris) at the Plzen Zoo in the Czech Republic.
  • A Mexican hairy dwarf porcupine (Coendou mexicanus) at the Knoxville Zoo.
  • Photo: Northern white-lipped mud turtle (Kinosternon leucostomum leucostomum) at the National Mississippi River Museum and Aquarium in Dubuque, Iowa.
  • Picture of a brown tufted capuchin (Cebus apella apella) at the Rolling Hills Wildlife Adventure.
  • South Florida black swamp snake (Seminatrix pygaea cyclas) at the Archbold Biological Station.
  • A cliff chipmunk (Tamias dorsalis dorsalis) at Southwest Wildlife Conservation Center in Scottsdale, AZ.
  • A critically endangered (IUCN) and federally endangered Philippine crocodile (Crocodylus mindorensis) at the Gladys Porter Zoo.
  • Photo: A softshell clam (Mya arenaria) at the Maine State Aquarium in West Boothbay, ME.
  • Photo: Pearly razorfish (Xyrichtys novacula) at the Albuquerque BioPark Aquarium.
  • A Central American treesnake (Imantodes gemmistratus) at the LA Zoo.
  • Photo: Speckled cockroach (Nauphoeta cinerea) at the Budapest Zoo.
  • Photo: South temple pit viper (Tropidolaemus philippensis) at Davao Crocodile Park.
  • Photo: Pink-winged phasma (Phasma gigas) at the Moscow Zoo.
  • Photo: Two unidentified butterflies at ACCB in Siem Reap, Cambodia.
  • Picture of two critically endangered Pirri harlequin frogs (Atelopus glyphus) at the Panama Amphibian Rescue and Conservation Project.
  • Vulnerable blackside daces (Chrosomus cumberlandensis) at Conservation Fisheries in Knoxville, Tennessee.
  • Picture of an albino porcupine (Erethizon dorsatum) named Halsey at the Nebraska Wildlife Rehab in Louisville, NE.
  • Eastern indigo snake, Drymarchon corais couperi, at the Toledo Zoo. This species is federally threatened.
  • Picture of a house wren from the wild near Thomasville, Georgia.
  • An endangered (IUCN) and federally endangered African wild dog (Lycaon pictus)
  • A young female snowy owl (Bubo scandiacus).
  • A crested myna (Acridotheres cristatellus) at the Plzen Zoo in the Czech Republic.
  • Sand shrimp, Crangon septemspinosa, at the Sedge Island Natural Resource Education Center in the Sedge Islands Marine Conservation Zone, Barnegat Bay, New Jersey.
  • Photo: A mangrove tunicate (Ecteinascidia turbinata) at Gulf Specimen in Panacea, Florida.
  • Photo: An endangered Marañón dart frog (Excidobates mysteriosus) Shaldon Wildlife Trust in Shaldon, England.
  • Picture of an endangered fishing cat (Prionailurus viverrinus) at the Point Defiance Zoo.
  • Picture of a federally endangered, African leopard (Panthera pardus pardus) at the Houston Zoo.
  • Photo: A Saharan striped polecat (Ictonyx libycus) at the Plzen Zoo.
  • Picture of three vulnerable Cape vultures (Gyps coprotheres). This is the heaviest of the African vultures, with males reaching 16 lbs, and the females reaching 20 lbs. The male is darker and smallest, named Kruger, The largest is Motswari, she's the lightest; the third is Timbavati.
  • Raggiana Bird-of-paradise (Paradisaea raggiana augustaevictoriae) at the Cincinnati Zoo.
  • Photo: A rare Eastern indigo snake, Drymarchon corais couperi, at Toledo Zoo.
  • Picture of a Mexican bluewing or simply blue wing (Myscelia ethusa ethusa) at the Minnesota Zoo.
  • Vulnerable Stolzmann's horned frogs (Ceratophrys stolzmanni) collected near Pilalo, Ecuador.
  • Marbled or bird dropping frogs (Hyla marmorata) from a private collection.
  • A spiny softshell turtle (Apalone spinifera) at the aquarium at Gavins Point National Fish Hatchery.
  • Carolina pygmy rattlesnake (Sistrurus miliarius miliarius) at the Riverbanks Zoo.
  • Photo: An Eurasian eagle owl (Bubo bubo sibiricus) at Parco Natura Viva in Bussolengo, Italy
  • Photo: Jonquil parrot (Aprosmictus jonquillaceus) at Loro Parque Fundacion.
  • Photo: Female six spotted fishing spider (Dolomedes triton) from the University of Nebraska-Lincoln.
  • Photo: Balkan green lizard (Lacerta trilineata) at Wroclaw Zoo.
  • Photo: Baby muskrat (Ondatra zibethicus) at the Wildlife Rehabilitation Center of Minnesota.
  • A grey mouse lemur (Microcebus ganzhorni) at the Plzen Zoo.
  • Picture of a four-banded sandgrouse (Pterocles quadricinctus) at the Tulsa Zoo.
  • Rainbow grasshopper or barber pole grasshopper or picture grasshopper (Dactylotum bicolor) at Cedar Point Biological Station.
  • A Platte River caddisfly (Ironoquia plattensis) in its larval stage.
  • Picture of a vulnerable (IUCN) and federally endangered male Cabot's tragopan (Tragopan caboti) at Pheasant Heaven, a private pheasant breeding facility near Clinton, NC.
  • Picture of a female, one-year old leopard cat (Prionailurus bengalensis chinensis) named Asia.
  • Photo: A California red-shouldered hawk (Buteo lineatus elegans) at the North Florida Wildlife Center.
  • Picture of an endangered (IUCN) and federally-endangered black-footed ferret (Mustela nigripes) at the Cheyenne Mountain Zoo.
  • An endangered (IUCN) and federally endangered Higgins eye pearly mussel (Lampsilis higginsii) at the Genoa National Fish Hatchery, Genoa, Wisconsin.
  • Photo: Javan myna (Acridotheres javanicus) at Zoo Negara.
  • Photo: Kikuyu black and white colobus (Colobus guereza kikuyuensis) at the Lisbon Zoo
  • A California king snake (Lampropeltis getulus californiae) at the Cheyenne Mountain Zoo.
  • Photo: Earless monitor lizard (Lanthanotus borneensis) at the Budapest Zoo.
  • Photo: The endangered Florida perforate reindeer lichen (Cladonia perforata) at Archbold Biological Station.
  • Photo: Bluespotted stingray (Neotrygon kuhlii) at the Omaha Zoo.
  • Photo: Starfish (Aphelasterias japonica) at the Moscow Zoo.
  • A Florida kingsnake (Lampropeltis getula floridana) at Santa Fe Community College Teaching Zoo.
  • Photo: An Asian glossy starling (Aplonis panayensis) at Parque Biologico.
  • Picture of a critically endangered (IUCN) and federally endangered Vancouver Island marmot (Marmota vancouverensis) at the Toronto Zoo.
  • A critically endangered (IUCN) and federally endangered hawksbill turtle (Eretmochelys imbricata) at the XCaret Resort in Mexico.
  • Picture of a male Mountain goat (Oreamnos americanus) at the Cheyenne Mountain Zoo.
  • A vulnerable macaroni penguin (Eudyptes chrysolophus) at the Omaha Zoo.
  • Photo: Texas pimpleback mussel (Cyclonaias petrina) from the Crustacean and Molluskan Ecology Lab at Auburn University.
  • Picture of an endangered (IUCN) and federally endangered, male Asiatic lion (Panthera leo persica) at the Kamla Nehru Zoological Garden in Ahmedabad, India.
  • Picture of a banded sea star (Luidia alternata), bottom left, and three small spine sea stars (Echinaster spinulosus) at Gulf Specimen Marine Lab and Aquarium.
  • Picture of an endangered Louisiana pine snake (Pituophis melanoleucus ruthveni) at the Sedgwick County Zoo in Wichita, Kansas
  • Photo: Western reef egret (Egretta gularis) at Kamla Nehru Zoological Garden, Ahmedabad, India.
  • Photo: A Belize yellow headed amazon (Amazona oratrix belizensis) at the Jurong Bird Park.
  • Photo: A giant fringe-limbed treefrog (Ecnomiohyla fimbrimembra) at Zoo Atlanta.
  • Photo: An Eastern screech owl (Megascops asio naevius) at the Carolina Waterfowl Rescue.
  • Photo: A leathery sea squirt (Styela plicata) at Gulf Specimen in Panacea, Florida.
  • Zompro's walkingstick (Parapachymorpha zomproi) at the Exmoor Zoo.
  • Photo: Spiderman agama (Agama mwanzae) at the Houston Zoo.
  • Picture of an astraea snail, Astraea tecta.
  • Photo: New Mexico milksnake (Lampropeltis triangulum celaenops) at the Albuquerque BioPark Aquarium.
  • Picture of a ternate damsel (Amblyglyphidodon ternatensis) at the Oceanario in Palmar, Colombia.
  • Photo: Brown babbler (Turdoides plebejus) in Choussy, France.
  • Picture of a green-winged teal (Anas crecca carolinensis) at the Sylvan Heights Bird Park.
  • A southern two-lined salamander (Eurycea cirrigera) at the Riverbanks Zoo, Columbia, South Carolina.
  • Crowned iguana (Laemanctus serratus) from the Omaha Zoo.
  • Picture of a regal fritillary (Speyeria idalia) a native to Nebraska, at the Lincoln Children's Zoo.
  • Indian blue peafowl (Pavo cristatus) at the Lincoln Children's Zoo.
  • Plains leopard frog (Lithobates blairi) at Fenton Farm.
  • A broken striped newt (Notophthalmus viridescens dorsalis) at the North Carolina Zoo.
  • Toady rainfrog or rusty robber frog (Strabomantis or Craugastor bufoniformis), from Central America at Zoo Atlanta.
  • Photo: Japanese trap door snail (Bellamya chinensis) from a private collection.
  • Photo: An English sole (Parophrys vetulus) at the Alaska SeaLife Center.
  • Photo: Ground cuscus (Strigocuscus gymnotis) at the Plzen Zoo in the Czech Republic.
  • Picture of an Argentine horned frog (Ceratophrys ornata) at the Lincoln Children's Zoo.
  • Photo: Arctic char (Salvelinus alpinus) photographed at Downtown Aquarium in Denver, Colorado.
  • Photo: A popeye catalufa (Pristigenys serrula) at the Downtown Aquarium in Denver, Colorado.
  • Photo: A white-spotted hermit crab (Dardanus megistos) at Riverbanks Zoo and Garden.
  • Photo: A Moroccan eyed lizard (Timon tangitanus) at the Plzen Zoo in the Czech Republic.
  • Picture of a desert recluse (Loxosceles deserta) at Springs Preserve.
  • Photo: A peregrine falcon (Falco peregrinus cassini) at Unidad de Rehabilitación de Fauna Silvestre.
  • A critically endangered (IUCN) and federally endangered Philippine crocodile (Crocodylus mindorensis) at the Gladys Porter Zoo.
  • A gerbil (Meriones unguiculatus) at the Safari Land Pet Store.
  • Photo: An Indian roofed turtle (Pangshura tecta) at the Assam State Zoo cum Botanical Garden.
  • Picture of blackside dace (Chrosomus cumberlandensis) in spawning colors at Conservation Fisheries. This is a vulnerable species.
  • Photo: Eurasian dotterel (Charadrius morinellus) at Monticello Center in Italy.
  • Photo: A Hiwassee Crayfish (Cambarus hiwasseensis) at the West Liberty University Crayfish Conservation Lab in West Liberty, Virginia.
  • Photo: An eastern blackheaded oriole (Oriolus larvatus) collected at Chitengo Camp in Gorongosa National Park.
  • Photo: Oriole warbler (Hypergerus atriceps) at the Oklahoma City Zoo.
  • Vulnerable Pinyon jay (Gymnorhinus cyanocephalus) 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.
  • Photo: A Morrocan thicktail scorpion (Androctonus mauritanicus) at the Safari Land Pet Store.
  • A Choctawhatchee beach mouse (Peromyscus polionotus allophrys) a federally endangered rodent, at the USFWS office in Panama City, FL. This and several other beach mice subspecies are imperiled due to beach development.
  • Picture of a green-winged teals (Anas crecca carolinensis) at the National Mississippi River Museum and Aquarium in Dubuque, Iowa.
  • Picture of a red-tailed hawk (Buteo jamaicensis).
  • Photo: A juvenile red-footed booby (Sula sula) at Houston SPCA’s Wildlife Center of Texas.
  • Picture of Rajah, an endangered, male white Bengal tiger (Panthera tigris tigris) at Alabama Gulf Coast Zoo.
  • A boat-billed heron (Cochlearius cochlearius phillipsi) at the Gladys Porter Zoo in Brownsville, Texas.
  • Photo: A Belitung Island tarsier (Cephalopachus bancanus saltator) in Jakarta, Indonesia in the care of PT. Alam Nusantara Jayatama.
  • Picture of a black-headed cat snake (Boiga nigriceps) at the Oklahoma City Zoo.
  • Photo: A scorpion mud turtle (Kinosternon scorpiodes) at the Chapultepec Zoo in Mexico City.
  • Picture of an Eastern whipbird (Psophodes olivaceus) at Healesville Sanctuary
  • Photo: Tobacco hornworm (Manduca sexta) at the Audubon Insectarium.
  • Photo: A whiptail (Aspidoscelis sp) at Springs Preserve.
  • Photo: Devil Crayfish, Cambarus diogenes, at the Crayfish lab in West Liberty University in West Liberty, WV. This specimen is from Raleigh, NC.
  • Photo: A buffy fish owl (Ketupa ketupu aagaardi) at the Prague Zoo.
  • Photo: Dracula, a critically endangered Golden-bellied capuchin (Cebus xanthosternos) at the Lisbon Zoo
  • Photo: A Florida rootworm beetle (Diabratica balteata) at the University of Florida in Gainesville.
  • Picture of federally endangered jaguarundis (Puma yagouaroundi) at Bear Creek Feline Center.
  • Picture of a male American wigeon (Anas americana) at Sylvan Heights Bird Park.
  • Photo: A European rabbit (Oryctolagus cuniculus) at Zoopark Zajezd.
  • Photo: A tawny-browed owl (Pulsatrix koeniswaldiana) at BioParque do Rio.
  • A splendid leaf frog (Cruziohyla sylviae) at the National Aquarium in Baltimore.
  • Picture of a critically endangered juvenile red headed vulture (Sarcogyps calvus) at Parco Natura Viva in Bussolengo, Italy.
  • Photo: A female Petter's chameleon (Furcifer petteri) from a private collection in St. Augustine, Florida.
  • A red-shouldered hawk (Buteo lineatus) at the Sutton Avian Research Center.
  • A Congo caecilian (Herpele squalostoma) at the Sedgwick County Zoo in Wichita, Kansas.
  • A male chestnut sparrow (Sorella eminibey) at Safari Park Dvur Kralove.
  • A critically endangered (IUCN) and federally endangered Philippine crocodile (Crocodylus mindorensis) at the Gladys Porter Zoo.
  • Picture of a vulnerable spiny-tailed iguana (Ctenosaura hemilopha conspicuosa) at the St. Louis Zoo.
  • Photo: A spoonbill paddlefish (Polyodon spathula) at the Medicine Park Aquarium and Natural Sciences Center in Medicine Park, OK. This species is listed at vulnerable on the IUCN Red List.
  • Photo: Black agouti (Dasyprocta fuliginosa) at Parque Jaime Duque near Bogota, Colombia.
  • Black crocodile newt (Tylototriton taliangensis) at the National Mississippi River Museum and Aquarium in Dubuque, IA.
  • Picture of a Hahn's red-shouldered macaw (Diopsittaca nobilis nobilis) at the Audubon Zoo in New Orleans.
  • Photo: Tonks, a 16 day old baby aye-aye (Daubentonia madagascariensis) at the Denver Zoo. This species is listed as endangered by both the IUCN and the Federal List.
  • Photo: Grey gecko (Woodworthia maculatus) at the Wellington Zoo.
  • Photo: Critically endangered Bali myna or Bali starling (Leucopsar rothschildi) at Lisbon Zoo.
  • Photo: A Sri Lankan junglefowl (Gallus lafayetii) at Prague Zoo.
  • A Western screech owl, Sonoran Desert color phase (Megascops (Otus) kennicottii aikeni) at the Sutton Avian Research Center.
  • Photo: Toadhead turtle or gibba turtle (Mesoclemmys gibba) at Piscilago, a zoo in Colombia.
  • Photo: Andaman barn owl (Tyto alba deroepstorffi) at Kamla Nehru Zoological Garden, Ahmedabad, India.
  • Picture of a serval (Leptailurus serval) named 'Kenya' at the Fort Worth Zoo.
  • Photo: A monacled cobra (Naga kauthia) at Reptile Gardens.
  • Photo: One-week-old Guianan cock-of-the-rock (Rupicola rupicola) at the Dallas World Aquarium.
  • Photo: A Blyth's hawk-eagle (Nisaetus alboniger) at Jurong Bird Park, of Wildlife Reserves Singapore.
  • Photo: An Indo-Pacific borer urchin (Echinometra mathaei) at Riverbanks Zoo and Garden.
  • Photo: Spiderman agama (Agama mwanzae) at the Houston Zoo.
  • Photo: A Steppe agama (Trapelus sanguinolentus) at Prague Zoo.
  • Photo: A West Indian Whistling-duck (Dendrocygna arborea) at the Miller Park Zoo. This species is listed at vulnerable on the IUCN Red List.
  • Photo: A male Elliot's pheasant (Syrmaticus ellioti) at Tierpark Berlin.
  • A two-headed yellow-belied slider (Trachemys scripta scripta) at Riverbanks Zoo.
  • Photo: A slender mongoose (Galerella sanguinea) at the Plzen Zoo.
  • Picture of a white-spotted gecko (Tarentola annularis) at the Great Bend Brit Spaugh Zoo in Great Bend, Kansas.
  • Photo: A Papuan taipan (Oxyranus scutellatus canni) at Reptile Gardens.
  • Photo: A female European mouflon sheep (Ovis ovis musimon) at Parco Natura Viva in Bussolengo, Italy.
  • A gentoo penguin (Pygoscelis papua papua).
  • A Wyoming toad (Anaxyrus baxteri or Bufo baxteri) at the Omaha Zoo. (IUCN: Extinct in the wild; US: Endangered)
  • Photo: Jacintha eggfly butterfly (Hypolimnas bolina jacintha) at Singapore Zoo.
  • The bottom side of a Mississippi mud turtle (Kinosternon subrubrum hippocrepis) at Millard's Turtle Farm, Birmingham, Iowa.
  • Photo: Red fin rainbowfish (Melanotaenia maccullochi) at Plzen Zoo in the Czech Republic.
  • Photo: An Indian rhino at the Rolling Hills Wildlife Adventure in Salina, KS
  • Narrow-headed garter snake (Thamnophis rufipunctatus) at the Phoenix Zoo.
  • Photo: Male and female red flanked lorikeets (Charmosyna placentis placentis) at Loro Parque Fundacion.
  • Photo: A South American sea lion (Otaria flavescens) at Buin Marino.
  • An Arizona jewel beetle (Gymetis flavomarginata) at the St. Louis Zoo.
  • Picture of a blue phase of the strawberry poison dart frog (Oophaga (Dendrobates) pumilio) at the National Aquarium in Baltimore.
  • A Coqui frog (Eleutherodactylus coqui) at Zoo Atlanta. A very prolific frog from Puerto Rico that is now an invasive species in both Florida and Hawaii.
  • An endangered (IUCN) elongated tortoise (Indotestudo elongata) from the Assam State Zoo. This could be described as a new subspecies once genetic work is done.
  • Photo: A lesser baboon spider (Harpactirella lightfooti) from a private collection.
  • Photo: Gulf Coast ribbon snake (Thamnophis proximus orarius) at the Omaha Zoo.
  • A black-throated magpie-jay (Calocitta colliei) at the Houston Zoo.
  • Photo: A Malaysian gliding tree frog (Rhacophorus pardalis) from a private collection.
  • Photo: Leeloo, a six-year-old white-tailed prairie dog (Cynomys leucurus) photographed in Utah.
  • Picture of a ribbon snake (Thamnophis sauritus) at the New York State Zoo in Watertown, NY.
  • Picture of an endangered big-headed turtle (Platysternon megacephalum megacephalum) at the National Mississippi River Museum and Aquarium in Dubuque, Iowa.
  • Photo: Black-spined toad (Duttaphrynus melanostictus) photographed in the wild in Hong Kong.
  • An Espada's marsupial frog (Gastrotheca testudinea) at Pontificia Universidad Católica del Ecuador.
  • Photo: A ring-tailed mongoose (Galidia elegans) at the Plzen Zoo in the Czech Republic.
  • A federally endangered timber wolf (Canis lupus) named Kenai at the New York State Zoo.
  • A blue jay (Cyanocitta cristata) at the School of Biological Sciences at the University of Nebraska-Lincoln.
  • Picture of a blue-faced parrotfinch (Erythrura trichroa) from a private collection.
  • Picture of a Florida horse conch (Triplofusus giganteus) at the Columbus Zoo.
  • Photo: Candy striped shrimp (Lebbeus grandimanus) at the Alaska SeaLife Center.
  • Photo: White-ringed atlas moth (Epiphora mythimnia) at the McGuire Center of the Florida Museum of Natural History.
  • Photo: A Pacific bottlenose dolphin (Tursiops truncatus gillii) at SeaWorld San Diego.
  • Endangered Golden lion tamarins (Leontopithecus rosalia) at the Lincoln Children's Zoo.
  • A pair of vulnerable (IUCN) ashy darters (Etheostoma cinereum), a very rare fish species with a shrinking range in TN and VA, at Conservation Fisheries, a native stream fish breeding center. This fish should be listed as endangered but hasn't been due to lack of lack of funding and little survey work to determine just how imperiled it is.
  • Common marsupial frog (Gastrotheca marsupiata) at the Detroit Zoo.
  • Photo: An endangered Chile mountain false toad (Telmatobufo venustus) at the Santiago Zoo in Chile.
  • A russian tortoise (Testudo horsfieldii) at the Safari Land Pet Center. This species is listed as Vulnerable by IUCN.
  • Photo: A Madagascar hissing cockroach (Eliptorhina chopardi) from the Plzen Zoo in the Czech Republic.
  • Critically endangered (IUCN) Arakan forest turtle (Heosemys depressa) at the St. Louis Zoo.
  • Photo: A click beetle (family Elateridae) at the Audubon Zoo in New Orleans, Louisiana.
  • A critically endangered (IUCN) and federally endangered Philippine crocodile (Crocodylus mindorensis) at the Gladys Porter Zoo.
  • A marbled newt (Triturus marmoratus) photographed at Conservation Fisheries, a breeding center for rare native stream fish.
  • Photo: A male ultramarine grosbeak (Cyanoloxia brissonii sterea) at the Membeca Lagos Farm, near Rio de Janeiro, Brazil.
  • Masked bobwhite quail (Colinus virginianus ridgwayi), an endangered (IUCN) and federally endangered species, at the Phoenix Zoo.
  • Photo: A Guadalupe fur seal (Arctocephalus townsendi) at SeaWorld San Diego.
  • A critically endangered female blue-billed curassow (Crax alberti) at the National Aviary of Colombia.
  • Photo: A dusky parrot (Pionus fuscus) at Loro Parque Fundacion.
  • Picture of a Hawaiian short-eared owl (Asio flammeus sandwichensis) at the LA Zoo.
  • Photo: Atlantic sting ray (Dasyatis sabina) from Gulf Specimen Marine Laboratories.
  • Photo: An endangered Ruivaco-do-oeste, Achondrostoma occidentale, a rare freshwater fish at the Vasco da Gama Aquarium.
  • A mahogany glider (Petaurus gracilis), an endangered Australian mammal.
  • Photo: A juvenile big-eared opossum (Didelphis aurita) at the Membeca Lagos Farm, near Rio de Janeiro, Brazil.
  • Photo: A female Jackson's chameleon (Trioceros jacksonii jacksonii) from a private collection in St. Augustine, Florida.
  • A federally endangered Salt Creek tiger beetle (Cicindela nevadica lincolniana) in a lab at the University of Nebraska-Lincoln. With a count of fewer than 250 adults in the summer of 2007, this subspecies of tiger beetle could be the rarest insect in North America. Found only in the interior saline wetlands of Lancaster County, Nebraska, the beetle has been in decline for years due to habitat loss from development.
  • A Dabb spiny-tailed lizard (Uromastyx acanthinura) at the Fort Worth Zoo.
  • Photo: An English sparrow (also known as a house sparrow). This animal flew into a window of a building, a very common cause of injury and death to wild birds.
  • An Indian sambar deer (Rusa unicolor unicolor) at Kamla Nehru Zoological Garden, Ahmedabad, India.
  • Photo: A cork bark leaf-tailed gecko (Uroplatus pietschmanni) from a private collection.
  • A black milksnake (Lampropeltis triangulum gaigeae) at the Fort Worth Zoo.
  • Photo: A captive critically endangered (IUCN) and federally endangered California condor (Gymnogyps californianus) at the Phoenix Zoo.
  • A Spanish ribbed newt (Pleurodeles waltl).
  • Photo: A kelp gull (Larus dominicanus dominicanus) at BioParque do Rio.
  • Photo: An Eastern slender glass lizard (Ophisaurus attenuatus longicaudus) at the Auburn University Natural History Museum.
  • Arabian oryx, Oryx leucoryx, at the Phoenix Zoo. This species is listed as vulnerable.
  • A millipede (Diplopoda sp.).
  • Picture of a black-footed tree rat (Mesembriomys gouldii) named Pandy at the Taronga Zoo.
  • Picture of a Florida sandshell (Lampsilis floridensis) collected from the Ochlockonee River near Tallahassee, Florida.
  • An endangered (IUCN) and federally endangered Virgin Islands boa (Chilabothrus granti) at Toledo Zoo.
  • Picture of a black-throated Laughing Thrush (Garrulax chinensis) at the Houston Zoo.
  • Photo: Cliff swallow (Petrochelidon pyrrhonota) at Bay Beach Wildlife Sanctuary
  • Photo: A rufous-collared sparrow (Zonotrichia capensis subtorquata) at the Membeca Lagos Farm, near Rio de Janeiro, Brazil.
  • Photo: Two Jejunus stick insects (Lonchodes jejunus) at the Moscow Zoo.
  • Picture of a Clark's anemonefish (Amphiprion clarkii) at Pure Aquariums.
  • Photo: An Atlantic sea scallop (Placopecten magellanicus) at the Maine State Aquarium in West Boothbay, ME.
  • Photo: A male turtle carapaced marsupial frog (Gastrotheca testudinea) at Centro Jambatu in Quito, Ecuador.
  • Photo: Spencer's monitor (Varanus spenceri) at Lilydale High School in Australia.
  • Photo: An Alabama map turtle (Graptemys pulchra) at the Cheyenne Mountain Zoo.
  • Photo: Black-headed ibis or oriental white ibis (Threskiornis melanocephalus) at Kamla Nehru Zoological Garden, Ahmedabad, India.
  • Photo: A close up of the 'spade' on the back foot of a Plains spadefoot toad (Spea bombifrons) at the University of Nebraska.
  • Picture of a 29-year-old endangered male Asian elephant (Elephas maximus) named Billy at the LA Zoo.
  • Photo: An endangered Von der Decken's sifaka, Propithecus deckenii, at Lemuria Land.
  • Photo: A common bleak (Alburnus alburnus) at Fluviário de Mora in Portugal.
  • Picture of a grizzly bear (Ursus arctos horribilis) at the Sedgwick County Zoo.
  • A satanic leaf-tailed gecko (Uroplatus phantasticus) at the Houston Zoo, Houston, Texas. (IUCN: Vulnerable)
  • Spotted-necked otters (Hydrictis maculicollis) at the Omaha Zoo.
  • Photo: A blackstripe topminnow (Fundulus notatus) at the Medicine Park Aquarium and Natural Sciences Center in Medicine Park, OK.
  • Photo: A common toad (Rana arenarum) at Museo De Historia Natural "Alcide d'Orbigny".
  • Photo: An endangered March's palm pitviper (Bothriechis marchi) at the London Zoo.
  • An Indian sambar deer (Rusa unicolor unicolor) at Kamla Nehru Zoological Garden, Ahmedabad, India.
  • Photo: An Eurasian tree sparrow (Passer montanus saturatus) at Farmville de Bago on Negros Island in the Philippines.
  • Photo: A southern bald eagle (Haliaeetus leucocephalus leucocephalus) at Sia, the Comanche Nation Ethno-Ornithological Initiative.
  • Photo: Rainbow trout (Oncorhynchus mykiss) at East Bay Regional Park District.
  • Picture of a Bobcat (Lynx rufus) named Keta at the Miller Park Zoo.
  • Yellow-edged Giant Owl or Magnificent Owl (Caligo atreus) at the Henry Doorly Zoo and Aquarium.
  • Photo: Indo Pacific sergeant major (Abudefduf vaigiensis) photographed at Downtown Aquarium in Denver, Colorado.
  • Photo: Eleven-armed Sea Star (Coscinasterias muricata) at Melbourne Zoo.
  • A bumblebee dart frog (Dendrobates leucomelas) at the Omaha Zoo.
  • Critically endangered (IUCN) McCord's box turtle (Cuora mccordi) at the St. Louis Zoo.
  • Photo: A female reticulated siren (Siren reticulata) at Joe Budd Wildlife Management Area near Quincy, FL.
  • A green-cheeked conure or green-cheeked parakeet (Pyrrhura molinae) from the Gladys Porter Zoo in Brownsville, Texas.
  • A stygian owl (Asio stygius robustus) at Parque Jaime Duque near Bogota, Colombia.
  • Picture of a white-crested kalij pheasant (Lophura leucomelanos hamiltoni) at Himalayan Nature Park in Kufri.
  • Photo: A green-cheeked, or red-crowned, Amazon parrot (Amazona viridigenalis) at the Kansas City Zoo.
  • A vulnerable red-breasted goose (Branta ruficollis) at the Sedgwick County Zoo in Wichita, Kansas.
  • A screaming hairy armadillo (Chaetophractus vellerosus) at the Omaha Zoo.
  • Picture of grey-tailed moustached monkeys (Cercopithecus cephus cephodes) named Arlo and Blue at Park Assango, ONG Animal's World in Libreville, Gabon.
  • A Texas recluse spider (Loxosceles devia) at the Gladys Porter Zoo in Brownsville, Texas.
  • Photo: A king rail (Rallus elegans) at the Carolina Wildlife Center, a place that rescues and rehabilitates injured and orphaned wildlife.
  • Yellow ratsnake (Elaphe obsoleta quadrivittata) at the Omaha 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.
  • A critically endangered (IUCN) and federally endangered Philippine crocodile (Crocodylus mindorensis) at the Gladys Porter Zoo.
  • Ring-tailed lemur (Lemur catta) at the Lincoln Children's Zoo.
  • Photo: A porcelain crab (Porcellana sayana) at Gulf Specimen Marine Lab.
  • Picture of an Ord's kangaroo rat (Dipodomys ordii) at the Fort Worth Zoo.
  • A bat-eared fox (Otocyon megalotis megalotis) at the Omaha Zoo.
  • Photo: A Scottish wildcat, Felis silvestris grampia, at Wildwood Trust near Canterbury, England.
  • Picture of a variegated sea urchin (Lytechinus variegatus) at the Columbus Zoo.
  • Photo: Guianan red-cotinga (Phoenicircus carnifex) at the Dallas World Aquarium.
  • Photo: Oriole warbler (Hypergerus atriceps) at the Oklahoma City Zoo.
  • Picture of a Dumeril's monitor (Varanus dumerilii) at the Lincoln Children's Zoo, Lincoln, Nebraska.
  • A critically endangered black-eyed treefrog (Agalychnis moreletii) at the National Aquarium in Baltimore.
  • A marbled running frog (Kassina maculosa) at the Vancouver Aquarium.
  • Photo: An endangered thick-billed parrot (Rhynchopsitta pachyrhyncha) at World Bird Sanctuary.
  • Picture of an Argentine horned frog (Ceratophrys ornata) at the Lincoln Children's Zoo.
  • Photo: A least gerbil (Gerbillus pusillus) at the Plzen Zoo.
  • Photo: Cochise milksnake (Lampropeltis triangulum) at the Arizona- Sonora Desert Museum.
  • Bourret's pitviper (Protoborthrops jerdonii bourreti) at the Dallas Zoo.
  • A Jamaican iguana (Cyclura collei) from the Sedgwick County Zoo. This is one of the most critically endangered lizards in the world. Listed as critically endangered (IUCN) and federally endangered
  • A luna moth (Actias luna) at the Lincoln Children's Zoo.
  • Photo: A gray cracker butterfly (Hamadryas februa) at the Butterfly Pavilion.
  • Photo: Rainbow grasshoppers (Dactylotum bicolor) near Lakeside, Nebraska.
  • Photo: A one-toed amphiuma (Amphiuma pholeter) at the Oklahoma Aquarium.
  • Photo: A barn swallow (Hirundo rustica rustica) at Hessilhead Wildlife Rescue.
  • Photo: Two Jejunus stick insects (Lonchodes jejunus) at the Moscow Zoo.
  • Picture of a female silver-beaked tanager (Ramphocelus carbo) at the Tulsa Zoo.
  • A blue-winged kookaburra (Dacelo leachii) at the Houston Zoo.
  • Photo: An unidentified cricket species (Grillidea family) at the Museo d'Orbigny Natural History Museum in Cochabamba, Bolivia.
  • A butterfly mussel (Ellipsaria lineolata) at the Genoa National Fish Hatchery. This is one of 44 species of freshwater mussels still found in the upper Mississippi River near Prairie du Chien, WI.
  • A Wehrle's salamander (Plethodon wehrlei) from a private collection.
  • Picture of a strawberry dart frog (Oophaga (Dendrobates) pumilio).
  • A vulnerable (IUCN) and federally endangered clouded leopard (Neofelis nebulosa nebulosa) at the Houston Zoo.
  • Photo: Jewelled nawab (Polyura delphis) at Malacca Butterfly and Reptile Sanctuary.
  • Photo: Black hawk-eagle or tyrant hawk-eagle (Spizaetus tyrannus) at Parque Jaime Duque near Bogota, Colombia.
  • Photo: A critically endangered pygmy sculpin (Cottus paulus) at the Fish Biodiversity Lab, Auburn University, Auburn, Alabama.
  • Photo: Striped velvet gecko (Homopholis fasciata) at Wroclaw Zoo.
  • A roseate spoonbill (Platalea ajaja) at the Gladys Porter Zoo in Brownsville, Texas.
  • Photo: Crested serpent eagle (Spilornis cheela burmanicus) at ACCB in Siem Reap, Cambodia.
  • Picture of a Eurasian lynx (Lynx lynx) at the Columbus Zoo.
  • Great spotted woodpecker (Dendrocopos major pinetorum) from the Budapest Zoo.
  • Photo: A map frog (Boana geographicus) at Balsa de los Sapos.
  • Australian shelducks (Tadorna tadornoides) at the Kansas City Zoo.
  • Photo: An endangered Sakaramy killifish (Pachypanchax sakaramyi) at Denver Zoo.
  • Blanchard's cricket frog (Acris crepitans blanchardi) at the Toledo Zoo.
  • Photo: A barn swallow (Hirundo rustica rustica) at Hessilhead Wildlife Rescue.
  • Photo: A spotted-vent thin-toed frog (Leptodactylus ventrimaculatus) at Centro Jambatu in Quito, Ecuador.
  • Picture of an oiled California gull (Larus californicus) with a broken wing in a splint at the Santa Barbara Wildlife Care Network.
  • Photo: A Jerusalem cricket (Stenopelmatus fuscus) at the Butterfly Pavilion.
  • Photo: An endangered june sucker (Chasmistes liorus) at the Loveland Living Planet Aquarium in Draper, UT.
  • A West African dwarf crocodile (Osteolaemus tetraspis tetraspis) at the Lincoln Children's Zoo. This species is federally endangered and listed as vulnerable on IUCN.
  • Photo: A Black marsh turtle (Siebenrockiella crassicollis) at Angkor Centre for Conservation of Biodiversity (ACCB) in Cambodia.
  • Photo: Black-billed cuckoo (Coccyzus erythropthalmus) at Bay Beach Wildlife Sanctuary.
  • Photo: A small Indian kite (Milvus migrans govinda) from the Assam State Zoo.
  • A Mexican red-knee tarantula (Brachypelma harmorii) at the St. Louis Zoo.
  • Photo: Brownbanded cockroaches (Supella longipalpa) at the Urban Entomology Lab at the University of Florida at Gainesville.
  • Photo: An American barn owl (Tyto alba pratincola) at Houston SPCA’s Wildlife Center of Texas.
  • Picture of a silk worm (Bombyx mori) coccoon with a dead pupae next to it.
  • An Arizona toad (Anaxyrus microscaphus) at the Arizona-Sonora Desert Museum.
  • Picture of an orange spine surgeonfish (Naso lituratus) at Pure Aquariums from the Gulf Specimen Marine Lab.
  • Photo: A beautiful crayfish (Cambarus speciosus) at the West Liberty University Crayfish Conservation Lab in West Liberty, West Virginia.
  • Photo: Buck darter (Etheostoma nebra) at Conservation Fisheries.
  • Photo: Solomons corella (Cacatua ducorpsii) at Park Assango, ONG Animal's World in Libreville, Gabon.
  • Picture of a foxfish (Bodianus frenchii) at Omaha's Henry Doorly Zoo and Aquarium.
  • Photo: Dollar sunfish (Lepomis marginatus) at the Cincinnati Zoo.
  • Photo: A green rainbow lizard (Cnemidophorus lemniscatus) at the Houston Zoo.
  • Picture of a Temminck's tragopan (Tragopan temminckii) from Sylvan Heights Waterfowl Park.
  • Photo: A timber rattlesnake (Crotalus horridus horridus) at Reptile Gardens.
  • An endangered (IUCN) and federally endangered bonobo (Pan paniscus) at the Columbus Zoo.
  • Photo: An endangered brook barbel (Barbus caninus) at Alpenzoo in Innsbruck, Austria.
  • Photo: A Costa Rican chevron tarantula (Psalmopoeus reduncus) from a private collection.
  • Picture of a Zambezi flapshelled turtle (Cycloderma frenatum) at the National Mississippi River Museum and Aquarium in Dubuque, Iowa.
  • A coyote (Canis latrans) at the Great Plains Zoo.
  • Picture of a migratory locust (Locusta migratoria) at the Auckland Zoo.
  • Photo: Coral banded shrimp (Stenopus hispidus) at the Oklahoma City Zoo.
  • Photo: An eastern willow flycatcher (Empidonax traillii traillii) at the Wildlife Rehab Center of Minnesota.
  • Photo: A Pacific pink scallop (Chlamys rubida) at the Alaska SeaLife Center.
  • Photo: A damselfly larvae in the family Conagrionidae at the Pontotoc Ridge Preserve near Connerville, OK.
  • A stiletto snake (Atractaspis bibronii). This snake is also known as a Bibron's mole viper and Bibron's burrowing asp.
  • A western painted turtle (Chrysemys picta) at the Oregon Zoo.
  • Dabb spiny-tailed lizard (Uromastyx acanthinura) at the Fort Worth Zoo.
  • An eastern American toad (Bufo americanus americanus) found in Watertown, NY.
  • Photo: A crested eagle (Morphnus guianensis) at Zoologico de Quito.
  • Photo: A male and a female Thorold’s deer (Cervus albirostris) at the Prague Zoo. This species is listed as vulnerable on the IUCN Red List.
  • Photo: Senegal bichir (Polypterus senegalus) at the Moscow Zoo.
  • A prairie ringneck snake (Diadophis punctatus arnyi) from a private collection.
  • Photo: A Mindoro water monitor (Varanus bangonorum) on Semirara Island in the Philippines.
  • Eastern coral snake (Micrurus fulvius fulvius) at the Riverbanks Zoo.
  • Picture of a near threatened Bornean crested fireback pheasant (Lophura ignita ignita) at Pheasant Heaven, a private pheasant breeding facility near Clinton, NC.
  • An old world harvest mouse (Micromys minutus) at the Omaha Zoo.
  • Photo: A Lower Keys marsh rabbit, Sylvilagus palustris hefneri, from the wild.
  • Photo: A krait (Bungarus sindonus sindonus) at Reptile Gardens.
  • Puerto Rican crested toad (Peltophryne lemur) at the Sedgwick County Zoo in Wichita, Kansas. (IUCN: Critically Endangered, and federally threatened)
  • A red salamander (Pseudotriton ruber) at Zoo Atlanta, Atlanta, Georgia.
  • Photo: Two Costa Rican redleg tarantulas (Megaphobema mesomelas) from a private collection.
  • A black-capped chickadee (Poecile atricapillus atricapillus) from Omaha, NE.
  • A metallic green bee (Agapostemon virescens), which along with other bee species is a locally important pollinator of field crops.
  • Indian blue peafowl (Pavo cristatus) at the Lincoln Children's Zoo.
  • A vulnerable reticulated giraffe (Giraffa camelopardalis reticulata) with finer white lines in pattern, and an endangered Rothschild giraffe (Giraffa camelopardalis rothschildi) at Rolling Hills Wildlife Adventure near Salina, Kansas.
  • Picture of a critically endangered grey-shanked douc langur (Pygathrix cinerea) at the Endangered Primate Rescue Center in Cuc Phuong National Park, Vietnam. This animal's name is Eric.
  • Photo: A Torresian imperial pigeon (Ducula spilorrhoa tarara) at the Plzen Zoo.
  • A cotton-top tamarin (Saguinus oedipus) at the Rolling Hills Wildlife Adventure. (IUCN: Endangered)
  • Liguus tree snail (Liguus fasciatus) at Crocodile Lake National Wildlife Refuge, Key Largo, Florida.
  • Black crocodile newt (Tylototriton taliangensis) at the National Mississippi River Museum and Aquarium in Dubuque, IA.
  • Photo: A Nashville warbler (Oreothlypis ruficapilla) at Iowa Bird Rehabilitation.
  • Picture of a collared aracari (Pteroglossus torquatus) at the Houston Zoo.
  • Photo: Taxidermy specimen of an ivory-billed woodpecker at the University of Nebraska State Museum.
  • Photo: Water scavenger beetle (Hydrophilus sp.) at the Insectarium in New Orleans.
  • Photo: A yellow or eastern mantella (Mantella crocea) at the National Mississippi River Museum and Aquarium in Dubuque, IA.
  • A giant leaf-toed gecko (Hemidactylus giganteus) from a private collection.
  • A near threatened Bachman’s sparrow (Peucaea aestivalis aestivalis) caught and photographed at Kissimmee Prairie Preserve State Park, Okeechobee, Florida.
  • A red-eyed tree frog (Agalychnis callidryas) at the Sunset Zoo in Manhattan, Kansas.
  • Photo: An emperor penguin (Aptenodytes forsteri) at SeaWorld San Diego.
  • A Choctawhatchee beach mouse (Peromyscus polionotus allophrys) a federally endangered rodent, at the USFWS office in Panama City, FL. This and several other beach mice subspecies are imperiled due to beach development.
  • Picture of a federally endangered scarlet-chested parrot (Neophema splendida) at Parrots in Paradise, a bird attraction in Glass House Mountains, Queensland.
  • A green and black poison dart frog (Dendrobates auratus) collected near Pilalo, Ecuador.
  • Picture of a vulnerable Fly River turtle (Carettochelys insculpta) at Reptile Gardens.
  • An Eastern hog-nosed snake (Heterodon platirhinos) at the Houston Zoo.
  • Picture of a black-sided hawkfish (Paracirrhites forsteri) at Omaha's Henry Doorly Zoo and Aquarium.
  • Picture of a Barred flagtail (Kuhlia mugil) at Omaha's Henry Doorly Zoo and Aquarium.
  • Indian leaf (Kallima paralekta) at Malacca Butterfly and Reptile Sanctuary.
  • A variable reed frog (Hyperolius pictus) at the Vancouver Aquarium.
  • A Mandarin emperor newt (Tylototriton shanjing) at the Cheyenne Mountain Zoo.
  • Photo: Dark blue tiger butterfly (Tirumala septentrionis) at Butterfly Pavilion.
  • A mudpuppy (Necturus maculosus) at the Genoa National Fish Hatchery.
  • A black bullhead (Ameiurus melas) at Gavins Point National Fish Hatchery and Aquarium.
  • Photo: A flat-fingered robber frog (Pristimantis platydactylus) at Museo De Historia Natural "Alcide d'Orbigny".
  • Giant katydid (Stilpnochlora couloniana) at the Central Florida Zoo.
  • A black-capped lory (Lorius lory) at the Indianapolis Zoo.
  • Photo: A critically endangered pygmy sculpin (Cottus paulus) at the Fish Biodiversity Lab, Auburn University, Auburn, Alabama.
  • Photo: A federally-endangered Guyandotte River crayfish (Cambarus veteranus) at the West Liberty University Crayfish Conservation Lab in West Liberty, West Virginia.
  • Photo: An Atlantic rock crab (Cancer irroratus) at the Maine State Aquarium in West Boothbay, ME.
  • Photo: A male Sumba hornbill (Rhyticeros everetti) at Bali Bird Park in Bali, Indonesia.
  • Photo: A basin treefrog (Boana lanciformis) from the wild Manaus, Brazil.
  • A critically endangered harlequin frog (Atelopes varius) the Omaha Zoo. This species, from Panama, is now thought to be extinct in the wild. With only 300 or so in captivity, it is thought to be one of the rarest amphibians in the world.
  • Photo: A slate-colored junco (Junco hyemalis) at the Akron Zoo.
  • Photo: Colt coral (Cladiella sp.) at Butterfly Pavilion.
  • Photo: An eastern goliath stick insect (Eurycnema goliath) at the Melbourne Zoo.
  • Picture of an African rock python (Python sebae) at the National Mississippi River Museum and Aquarium in Dubuque, Iowa. This was a confiscated anim
  • Photo: Mangrove horseshoe crab (Carcinoscorpius rotundicauda) at the Singapore Zoo.
  • Photo: Two female hand-raised nine-day-old clouded leopard cubs (Neofelis nebulosa nebulosa) at the Nashville Zoo.
  • Picture of a great blue turaco (Corythaeola cristata) at the Sedgwick County Zoo.
  • Photo: A western rosella, Platycercus icterotis, at the Blank Park Zoo in Des Moines, Iowa.
  • An endangered (IUCN) and federally endangered San Esteban chuckwalla, Sauromalus varius, at the Arizona Sonora Desert Museum
  • Picture of a common tree snake (Dendrelaphis punctulatus) at the Healesville Sanctuary.
  • Photo: A male golden pheasant (Chrysolophus pictus) at Padmaja Naidu Himalayan Zoological Park.
  • Splendid mantella (Mantella pulchra) at the Detroit Zoo. (IUCN: Vulnerable)
  • Photo: An orange-billed thrush (Geokichla citrina melli) at the Prague Zoo.
  • Photo: Malayan tree nymph (Idea lynceus) at Malacca Butterfly and Reptile Sanctuary.
  • Photo: A Northern waterthrush (Parkesia noveboracensis) at Iowa Bird Rehabilitation.
  • Photo: Bubble tip anemone (Entacmaea quadricolor) at Butterfly Pavilion.
  • A horned frog (Ceratophrys cornuta) at the Riverbanks Zoo.
  • A Florida cooter (Pseudemys floridana) at the Chapultepec Zoo in Mexico City.
  • Photo: A female American rubyspot damselfly (Hetaerina americana) at Cedar Point Biological Station.
  • Photo: A male western red-billed toucan (Ramphastos tucanus tucanus) at the Dallas World Aquarium.
  • Photo: Jackson's three horned chameleon (Trioceros jacksonii) at the Budapest Zoo.
  • A black-throated monitor (Varanus albigularis ionidesi) at the Kansas City Zoo.
  • Picture of a spur-winged goose (Plectropterus gambensis) at the Cleveland Metroparks Zoo.
  • Four-striped grass mouse (Rhabdomys pumilio) at the Omaha Zoo.
  • Picture of a sanderling (Calidris alba) at the Monterey Bay Aquarium.
  • A red salamander (Pseudotriton ruber) at Zoo Atlanta, Atlanta, Georgia.
  • Picture of a Texas millipede (Orthoporus texicolens) at the Topeka Zoo.
  • A green conure (Aratinga holochlora) at the Gladys Porter Zoo in Brownsville, Texas.
  • 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.
  • Picture of an endangered, male Okinawa black-breasted leaf turtle, Geoemyda japonica, at the Turtle Conservancy.
  • A short-tailed weasel (Mustela erminea cicognanii) at the New York State Zoo.
  • A Fowler’s toad (Bufo fowleri) at Conasauga river.
  • Photo: Yuma coral (Ricordea yuma) from a private collection in Saint Louis.
  • Photo: A mottled rock rattlesnake (Crotalus lepidus lepidus) at Reptile Gardens.
  • Photo: Four longfin inshore squid (Doryteuthis pealeii) at the Maine State Aquarium in West Boothbay, ME.
  • Picture of an Eastern collared lizard (Crotaphytus collaris collaris) at the Wichita Mountains National Wildlife Refuge near Lawton, OK.
  • Photo: A gold-and-white marmoset (Mico chrysoleucus) at Fundacao Jardim Zoologico de Brasilia.
  • Photo: A female black kalij pheasant (Lophura leucomelanos moffitti) at a private collection.
  • Photo: A stick insect (Phasmatidae sp.) at the University of the Philippines.
  • Photo: A silver carp (Hypophthalmichthys molitrix) at the Schramm Education Center near Gretna, NE.
  • Picture of a Cook's tree boa (Corallus cookii) at the Palm Beach Zoo.
  • Picture of a white-backed duck, Thalassornis leuconotus, at Sylvan Heights Bird Park.
  • Picture of a red-tailed hawk (Buteo jamaicensis).
  • Picture of a vulnerable Hispaniolan or Haitian slider turtle (Trachemys decorata) at the Bermuda Aquarium, Museum and Zoo.
  • Photo: Eastern skink (Scincus mitranus) at the at the Albuquerque BioPark Aquarium.
  • Photo: A double-collared seedeater (Sporophila caerulescens caerulescens) at Fundacao Jardim Zoologico de Brasilia.
  • A great grey owl (Strix nebulosa nebulosa) at the New York State Zoo.
  • A largemouth bass (Micropterus salmoides) at the Genoa National Fish Hatchery.
  • Photo: Trachyaretaon sp "AuroraÓ at the Budapest Zoo. This is new to science.
  • Photo: Aymara parakeet (Psilopsiagon aymara) at Loro Parque Fundacion.
  • A tiger rat snake (Spilotes pullatus) profile at the Gladys Porter Zoo.
  • A Cope's treefrog (Hyla chrysoscelis) caught in the wild near Dunbar, Nebraska.
  • Photo: Garden snail (Cornu aspersum) at Graham's Quinta dos Malvedos Vineyard.
  • Juvenile mink (Neovison vison).
  • Photo: An Ecuadorian white shrimp (Litopenaeus vannamei) at the Oklahoma Aquarium.
  • Picture of a Cereopsis or Cape Barren goose (Cereopsis novaehollandiae) at the Gladys Porter Zoo in Brownsville, Texas.
  • Photo: A fox squirrel, Sciurus niger.
  • Picture of a blue and yellow macaw (Ara ararauna) at the Kansas City Zoo.
  • Photo: Red apple crab (Sesarma bidens) from a private collection.
  • Photo: Great sculpin (Myoxocephalus polyacanthocephalus) at the Alaska SeaLife Center in Seward, AK.
  • Photo: A wonderful crayfish (Faxonius mirus) collected near Flint River, Alabama, by the West Liberty University Crayfish Conservation Lab.
  • A pied crow (Corvus albus) at Zoo Atlanta.
  • A female ruffed grouse (Bonasa umbellus mediana) at the Wildlife Rehab Center of Minnesota.
  • Photo: An eastern willow flycatcher (Empidonax traillii traillii) at the Wildlife Rehab Center of Minnesota.
  • Picture of a Malachite (Siproeta stelenes biplagiata) in Gamboa, Panama.
  • Photo: A male Southern Gran Canaria skink, Chalcides sexlineatus sexlineatus, at the Plzen Zoo.
  • A critically endangered, male Sumatran orangutan, Pongo abelii, at Rolling Hills Wildlife Adventure.
  • Southern corroboree frogs (Pseudophryne corroboree) a critically endangered species at the Healesville Sanctuary in Healesville, Victoria, Australia.
  • Photo: Lobed brain coral, Lobophyllia hemprichii) from a private collection in Saint Louis.
  • Southern corroboree frog (Pseudophryne corroboree) a critically endangered species at the Healesville Wildlife Sanctuary in Melbourne, Australia.
  • Photo: An olive sunbird (Nectarinia olivacea) from Bioko Island, Equatorial Guinea.
  • Photo: An Elliot's short-tailed shrew (Blarina hylophaga hylophaga) at the WildCare Foundation, a wildlife rehabber in Noble, Oklahoma.
  • An endangered Amargosa toad (Anaxyrus nelsoni) near Beatty, Nevada.
  • Photo: A barbary sheep (Ammotragus lervia) at Parco Natura Viva in Bussolengo, Italy.
  • Picture of an endangered (IUCN) and federally endangered Malayan tapir (Tapirus indicus).
  • Photo: A European hare (Lepus europaeus) at Centro Fauna Selvatica "Il Pettirosso".
  • Photo: A sunray brain coral (Diploastrea heliopora) at the Downtown Aquarium in Denver, Colorado.
  • A federally endangered Florida panther (Puma concolor coryi) named Lucy at Tampa's Lowry Park Zoo.
  • Photo: Arizona mountain kingsnake (Lampropeltis pyromelana pyromelana) at the Arizona-Sonora Desert Museum.
  • Picture of an American avocet (Recurvirostra americana) at Tracy Aviary.
  • Rough-legged hawk (Buteo lagopus sanctijohannis) at the Toledo Zoo.
  • Picture of Thomson's gazelles (Eudorcas thomsonii) at the Columbus Zoo.
  • Photo: A slender-billed parakeet (Enicognathus leptorhynchus) at Fauna Andina, a conservation center near Villarrica, Chile.
  • A federally endangered female Alabama beach mouse (Peromyscus polionotus ammobates).
  • Photo: Daring jumping spider (Phidippus audax) at the Insectarium in New Orleans.
  • Picture of an endangered pileated gibbon with her eight-month-old infant (Hylobates pileatus) at the Gibbon Conservation Center
  • A federally endangered female Alabama beach mouse (Peromyscus polionotus ammobates).
  • A vulnerable (IUCN) and federally endangered Boulder darter (Etheostoma wapiti) at Conservation Fisheries.
  • Photo: Southeast Asian katydid (Mecapoda elongata) at the Audubon Insectarium.
  • Photo: Buck darter (Etheostoma nebra) at Conservation Fisheries.
  • A Peters dwarf frog (Physalaemus petersi) at Pontificia Universidad Católica del Ecuador.
  • Picture of a grizzly bear (Ursus arctos horribilis) at the Sedgwick County Zoo.
  • Picture of a spinifex hopping mouse (Notomys alexis) at the Wild Life Sydney Zoo.
  • Picture of a green heron (Butorides virescens) at the Saint Louis Zoo.
  • A blue-spotted salamander (Ambystoma laterale) at the National Mississippi River Museum and Aquarium, Dubuque, Iowa.
  • Photo: A cork bark leaf-tailed gecko (Uroplatus pietschmanni) from a private collection.
  • Photo: A yellow-headed caracara (Milvago chimachima) at the Summit Municipal Park in Gamboa, Panama.
  • Gulf coast box turtle, Terrapene triunguis major, at the Sedgwick County Zoo.
  • Photo: Himalayan brown bear (Ursus arctos isabellinus) at Himalayan Nature Park in Kufri.
  • A groundhog (Marmota monax).
  • Photo: Whip scorpion (Hypoctonus rangunensis) at the Singapore Zoo.
  • Larval (grub) form of a scarab beetle known generally as a 'June bug', Osmoderma subplanata.
  • Picture of grey-tailed moustached monkeys (Cercopithecus cephus cephodes) named Arlo and Blue at the wildlife rehab center of ONG Animals World in Libreville, Gabon.
  • A cobalt blue tarantula (Haplopelma lividum) at Omaha's Henry Doorly Zoo.
  • Photo: Scarlet badis (Dario dario) from a private collection.
  • Photo: Walking stick (Lonchodiodes jeloces) at the Moscow Zoo.
  • A vulnerable southern bald Ibis (Geronticus calvus) at the Houston Zoo.
  • Photo: A red rubber frog (Phrynomantis microps) at a private collection.
  • A mallard (Anas platyrhynchos) duckling.
  • Photo: Josephine's lorikeet (Charmosyna josefinae) photographed at Loro Parque Fundacion.
  • Mountain short-horned lizard (Phrynosoma douglasii hernandesi) at the Albuquerque BioPark Aquarium.
  • Photo: A southern black flycatcher (Melaenornis pammelaina pammelaina) collected at Chitengo Camp in Gorongosa National Park.
  • Photo: A leopard gecko (Eublpharis macularis) from the Lincoln Children's Zoo in Lincoln, Nebraska.
  • Photo: Graveldiver (Scytalina cerdale) at the Alaska SeaLife Center in Seward, AK.
  • A Cuban Amazon parrot (Amazona leucocephala leucocephala) at the Houston Zoo.  This species is listed as near threatened on the IUCN Red List.
  • Photo: Splash-back poison frog (Ranitomeya variabilis) at the Houston Zoo.
  • Picture of a bat cave cockroach (Eublaberus distanti) at the Cincinnati Zoo.
  • Photo: Hungarian meadow viper (Vipera ursinii rakosiensis) at the Budapest Zoo.
  • Photo: A rummy nose tetra (Hemigrammus rhodostomus) at the Singapore Zoo's River Safari area.
  • Photo: A Philippine catsnake (Boiga philippina) at the Avilon Zoo.
  • Picture of a yellow fattail scorpion (Androctonus australis) at the Houston Zoo.
  • Photo: Yellow-ridged toucan (Ramphastos vitellinus culminatus) at Parque Jaime Duque near Bogota, Colombia.
  • An American bullfrog (Lithobates catesbeiana) caught in the wild in Nebraska.
  • A West African egg-eating snake (Dasypeltis gansi) at the Rolling Hills Zoo.
  • Picture of a Northern mockingbird (Mimus polyglottos) from a private collection in the Dominican Republic.
  • Puerto Rican crested toad (Peltophryne lemur) at the Sedgwick County Zoo in Wichita, Kansas. (IUCN: Critically Endangered, and federally threatened)
  • Picture of an emerald beetle (Smaragdestes orzini) at the Cincinnati Zoo.
  • Photo: Clown knifefish (Chitala ornata) at L'aquarium tropical du palais de la Porte DorŽe.
  • A black-spectacled toad (Duttaphynus melanostictus) photographed in the wild in Hong Kong.
  • A Sonoran sidewinder (Cotralus cerastes cercombombus) at Reptile Gardens.
  • Photo: A female redline darter (Etheostoma rufilineatum) photographed at the Alabama Aquatic Biodiversity Center in Marion, AL. This fish was collected from Butler Creek, Lauderdale County, AL.
  • Photo: An Atlantic salmon (Salmo salar) at the Maine State Aquarium in West Boothbay, ME. This species is listed as vulnerable by IUCN.
  • Photo: A Malabar parakeet, Psittacula columboides, at Loro Parque Fundacion.
  • A Sandhill crane (Grus canadensis) at the Sutton Avian Research Center.
  • Photo: A Pharaoh eagle-owl (Bubo ascalaphus) named Coll at The International Centre for Birds of Prey in England.
  • Photo: A common kingsnake or albino eastern kingsnake (Lampropeltis getula getula) at the Tennessee Aquarium.
  • Black crocodile newt (Tylototriton taliangensis) at the National Mississippi River Museum and Aquarium in Dubuque, IA.
  • Photo: A juvenile northern rough-winged swallow (Stelgidopteryx serripennis serripennis) at the Wildlife Rehabilitation Center of Minnesota.
  • Photo: A grey-headed goldfinch (Carduelis carduelis subulata) at Zoo Plzeň.
  • Photo: A coral hind or vermillion grouper (Cephalopholis miniata) at the Oklahoma Aquarium.
  • Photo: A federally endangered interior least tern (Sterna antillarum athalassos).
  • Photo: Two juvenile common opossum (Didelphis marsupialis) at Cetas-IBAMA, a wildlife rehab center in Manaus, Brazil.
  • A brownbelly leaf frog (Phyllomedusa tarsius) collected near Pilalo, Ecuador.
  • Photo: A decorated warbonnet (Chirolophis decoratus) at the Alaska SeaLife Center.
  • Picture of a vulnerable (IUCN) and federally threatened Southern rockhopper penguin (Eudyptes chrysocome chrysocome).
  • Photo: Southwestern speckled rattlesnake (Crotalus mitchellii pyrrhus) at the LA Zoo.
  • A Yucatan neotropical rattlesnake (Crotalus tzabcan) at Zoo Atlanta.
  • Photo: Stag beetle (Rheatulus didieri) at Malacca Butterfly and Reptile Sanctuary.
  • Photo: A group of critically endangered Louisiana pearlshell (Margaritifera hembeli) photographed at the Alabama Aquatic Biodiversity Center in Marion, AL.
  • Photo: A Payson blonde tarantula (Aphonopelma paysoni) at the Butterfly Pavilion.
  • Cope's gray tree frog (Hyla chrysoscelis) at the Detroit Zoo.
  • Picture of an endangered (IUCN) and federally endangered liontailed macaque, Macaca silenus, at Singapore Zoo.
  • Picture of a Black and gold bumblebee (Bombus auricomus).
  • Photo: A Chinese swimming scorpion (Lychas mucronatus) at Angkor Centre for Conservation of Biodiversity (ACCB) in Cambodia.
  • Photo: A spiny red sea star (Hippasteria phrygiana) at the Alaska SeaLife Center.
  • Wied's marmoset (aka Kuhlii's marmoset) (Callithrix kuhlii) at the Lincoln Childrens Zoo.
  • A St. Andrew beach mouse (Peromyscus polionotus peninsularis) a federally endangered rodent, at the USFWS office in Panama City, FL. This and several other beach mice subspecies are imperiled due to beach development.
  • Photo: An Arabian jird (Meriones arimalius) at the Plzen Zoo.
  • Photo: A banded leporinus (Leporinus fasciatus) at the Oklahoma City Zoo.
  • Picture of lovebugs (Plecia nearctica) collected from the wild near Gainesville, Florida.
  • Photo: Two batman bugs or Moapa Warm Springs naucorid (Limnocoris moapensis) at Warm Springs Natural Area, Upper Muddy River, NE Clark County, Nevada.
  • Photo: Long-mandibled stag beetle (Cyclommatus metallifer) at the Insectarium in New Orleans.
  • Photo: African golden oriole (Oriolus auratus) in Choussy, France.
  • 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.
  • Photo: A South Andean deer (Hippocamelus bisulcus) at Fauna Andina, a conservation center near Villarrica, Chile.
  • Photo: A spike (Eurynia dilatata) at the Center for Aquatic Mollusk Programs in Lake City, Minnesota.
  • Photo: A dusky-legged guan (Penelope obscura bronzina) at BioParque do Rio.
  • Photo: A marsh tchagra (Bocagia minuta anchietae) at a field museum in Gorongosa National Park.
  • Picture of a red-browed finch (Neochmia temporalis) at the Healesville Sanctuary.
  • Photo: A cream striped bulbul (Pycnonotus leucogrammicus) at the Plzen Zoo.
  • Picture of a Colombian chachalaca (Ortalis columbiana) at the National Aviary breeding center.
  • Sicklefin redhorse fish (Moxostoma sp. "sicklefin redhorse") a rare and undescribed species of redhorse found only in the Blue Ridge section of the Little Tennessee River and Hiwassee River. Photographed at Conservation Fisheries, a breeding center for rare native stream fish.
  • Photo: A tungarra frog (Engystomps pustulosus) at the captive breeding facility in Quito, Ecuador.
  • Photo: Cameroon red baboon tarantula (Hysterocrates gigas) at the Omaha Zoo.
  • Picture of a sugar glider (Petaurus breviceps).
  • Photo: A coastal taipan (Oxyuranus scutellatus scutellatus) at Reptile Gardens.
  • Photo: Andean parakeet (Bolborhynchus orbygnesius) at Loro Parque Fundacion.
  • Photo: An inland taipan (Oxyranus microlepidotus) at Reptile Gardens.
  • An endangered Forsten's (travancore) tortoise (Indotestudo forstenii) at Zoo Atlanta. This terrestrial species is from Indonesia's Sulawesi Island.
  • Photo: Blue haliclona sponge (Haliclona sp.) at Butterfly Pavilion.
  • Mississippi green water snake (Nerodia cyclopion) at the Estuarium in Dauphin Island, AL.
  • Picture of critically endangered, yearling Burmese star tortoises (Geochelone platynota) at the Turtle Conservancy.
  • Yellow-collared lovebird (Agapornis personatus) at Piscilago Zoo in Bogota, Colombia.
  • Photo: A male and female pin-tailed parrotfinch (Erythrura prasina prasina) at Penang Bird Park.
  • An endangered (IUCN and US) golden-cheeked warbler (Dendroica chrysoparia) at Fort Hood, Texas.
  • A green aracari (Pteroglossus viridis) at the Houston Zoo
  • Picture of an endangered (IUCN) and federally endangered black footed ferret (Mustela nigripes) at the Toronto Zoo.
  • Photo: Santa Isabel angelfish (Pterophyllum scalare) at the Dallas World Aquarium.
  • Photo: A Weatherford Creek crayfish (Faxonius sp.) collected in the Weatherford Creek drainage, Tennessee, by the West Liberty University Crayfish Conservation Lab.
  • Photo: A spiny softshell turtle (Trionyx spiniferus) at Reptile Gardens.
  • Arizona treefrog (Hyla wrightorum) at the Arizona-Sonora Desert Museum.
  • A violet turaco (Musophaga violacea) at the Lincoln Children's Zoo.
  • Threadfin cardinalfish (Zoramia leptacantha) at Omaha’s Henry Doorly Zoo and Aquarium.
  • Red-finned cigar-shark (Leptobarbus rubripinna) at Zoo Negara.
  • Photo: A Western creek chubsucker (Erimyzon claviformis) at Conservation Fisheries in Knoxville, Tennessee.
  • A critically endangered (IUCN) and federally endangered Philippine crocodile (Crocodylus mindorensis) at the Gladys Porter Zoo.
  • Photo: African flower chafer (Mecynorhina polyphemus) at the Insectarium in New Orleans.
  • A federally threatened Cuban iguana (Cyclura nubila nubila) at the San Diego Zoo.
  • Picture of an orange spine surgeonfish (Naso lituratus) at Pure Aquariums from the Gulf Specimen Marine Lab.
  • Photo: A large-spotted genet (Genetta maculata mossambica) named 'Zulu’, at Zooville USA near Plant City, Florida.
  • Photo: An Atlantic needlefish (Strongylura marina) at Gulf Specimen Marine Lab and Aquarium.
  • Picture of a plumed whistling duck, Dendrocygna eytoni, at the Blank Park Zoo in Des Moines, Iowa.
  • Photo: A valley flame crayfish, Cambarus deweesae, wild caught near West Liberty, West Virginia.
  • Photo: Transcaspian vole (Microtus transcaspicus) at the A.N. Severtsov Institute of Ecology and Evolution Russian Academy of Science.
  • Photo: A giant Blomberg toad (Rhaebo blombergi) at Centro Jambatu in Quito, Ecuador.
  • Photo: Cape girdled lizard (Cordylus cordylus) at the Budapest Zoo.
  • Picture of a critically endangered Kakapo (Strigops habroptilus) at Zealandia, in Wellington, New Zealand.
  • Photo: Pink-bellied imperial pigeon (Ducula poliocephala) at the Avilon Zoo.
  • Photo: Southwestern speckled rattlesnake (Crotalus mitchellii pyrrhus) at the LA Zoo.
  • Picture of Rani, an endangered female Bengal tiger (Panthera tigris tigris) at Alabama Gulf Coast Zoo.
  • Photo: A South American puffing snake (Pseustes sulphureus) at the Brevard Zoo.
  • Photo: A northern prairie skink (Plestiodon septentrionalis) collected in Jefferson County, Nebraska.
  • Photo: A Rodrigues fruit bat (Pteropus rodricensis) at the Lincoln Children's Zoo, Lincoln, Nebraska.
  • Picture of a Postman butterfly (Heliconius melpomene plesseni) at the Saint Louis Zoo.
  • Picture of a female white-faced ibis (Plegadis chihi) at Tracy Aviary.
  • An ornate spiny tail lizard (Uromastyx ornata) named Luxor at The LIving Desert in Palm Desert, California.
  • Photo: A black-capped vireo (Vireo atricapilla) at Fort Hood, Texas.
  • The greater yellow-headed vulture (Cathartes melambrotus) at the Sedgwick County Zoo in Wichita, Kansas.
  • Photo: A striped newt (Notophthalmus perstriatus) at the Sedgwick County Zoo.
  • Photo: A crowned spiny lizard (Acanthosaura coronate) at Petra Aqua.
  • A federally endangered Mexican gray wolf (Canis lupus baileyi) at the Wild Canid Survival and Research Center.
  • Photo: A vulnerable Fiordland crested penguin (Eudyptes pachyrhynchus) at the Taronga Zoo in Sydney, Australia.
  • Picture of a federally endangered poweshiek skipperling (Oarisma poweshiek) at the Minnesota Zoo.
  • Picture of a northern spur-winged goose, Plectropterus gambensis gambensis, at Sylvan Heights Bird Park.
  • Picture of a great black hawk (Buteogallus urubitinga) at the National Aviary breeding center.
  • A pair of rock pigeons, Columba livia, at the Blank Park Zoo in Des Moines, Iowa.
  • Photo: A female carpenter ant (Camponotus sansabeanus) at the Dallas Zoo. This animal was collected from South Padre Island.
  • Photo: Jungle perch (Kuhlia rupestris) at the Freshwater Ecology and Marine Biology Dept. at Templestowe College.
  • Photo: Blue-foot baboon tarantula (Idiothele mira) at the Moscow Zoo.
  • Photo: An eastern blacknose dace (Rhinichthys atratulus) at the Center for Aquatic Mollusk Programs in Lake City, Minnesota.
  • Photo: A pair of white-eyed giant leaf-tailed gecko (Uroplatus giganteus) at Riverbanks Zoo and Garden.
  • Great Plains narrow-mouthed toad (Gastrophryne olivacea) at the Arizona-Sonora Desert Museum.
  • Photo: A bay-breasted warbler (Setophaga castanea) at the Wildlife Rehab Center of Minnesota.
  • Picture of a Vicente's poison frog (Oophaga vicentei) at the Panama Amphibian Rescue and Conservation Project.
  • Photo: A male Michie’s tufted deer (Elaphodus cephalophus michianus) at Tierpark Berlin.
  • Photo: A blue whistling-thrush (Myophonus caeruleus ssp.) from a private collection in Choussy, France.
  • Photo: Balkan loach (Cobitis elongata) at Alpenzoo in Innsbruck, Austria.
  • Picture of a female fringe-lipped bat, Trachops cirrhosus
  • Photo: Red-legged seriama (Cariama cristata) from Parc des Oiseaux in Villars Les Dombes, France.
  • Picture of a Turquoise tanager (Tangara mexicana) at Tracy Aviary.
  • Photo: A Peregrine falcon (Falco peregrinus brookei) at the Wildlife Rescue Center of Rome (LIPU).
  • Photo: Egyptian grasshopper (Anacridium aegyptium) at Graham's Quinta dos Malvedos Vineyard.
  • Picture of a green junglefowl (Gallus varius) at the San Antonio Zoo.
  • St. Helena Mountain kingsnake (Lampropeltis zonata zonata) at the Phoenix Zoo.
  • A whiskered auklet (Aethia pygmaea) at the Cincinnati Zoo.
  • Photo: An olive ridley sea turtle, Lepidochelys olivacea, at the Loggerhead Marinelife Center.
  • Picture of a yellow-billed stork (Mycteria ibis) at The Living Desert in Palm Desert, California.
  • Brown booby (Sula leucogaster brewsteri) in adult plumage at International Bird Rescue Center.
  • Photo: Tail of a red tailed amazon (Amazona brasiliensis) at Loro Parque Fundacion.
  • Photo: Red swamp crayfish (Procambarus clarkii) at the Woodland Park Zoo.
  • Photo: Italian fire salamander, Salamandra salamandra gigliolii, at Parco Natura Viva.
  • Picture of a female greylag goose, Anser anser, at Sylvan Heights Bird Park.
  • Picture of a mexican tetra (Astyanax mexicanus) at the Tulsa Zoo.
  • Photo: Chrome roach (Gyna caffrorum) at the Budapest Zoo.
  • Limon giant glass frog (Sachatamia ilex) at Zoo Atlanta.
  • Picture of a leopard skink (Ctenotus pantherinus) at the Wild Life Sydney Zoo.
  • Photo: Golden perch (Macquaria ambigua) at the Freshwater Ecology and Marine Biology Dept. at Templestowe College.
  • Picture of a vulnerable Renard's meadow viper (Vipera renardi) at the St. Louis Zoo.
  • Twin spot rattlesnake (Crotalus pricei) at the Fresno Chaffe Zoo.
  • Photo: An endangered Assam roofed turtle (Pangshura sylhetensis) at the Assam State Zoo cum Botanical Garden.
  • A sturgeon chub (Macrhybopsis gelida) at the Nebraska Game & Parks Commission, Nebraska.
  • Photo: A northern water snake (Nerodia sipedon) from a private collection.
  • Picture of a butterfly splitfins or butterfly goodeids (Ameca splendens) at the Denver Aquarium, Denver, Colorado. This species is considered extinct in the wild.
  • Photo: A moustached parakeet, Psittacula alexandri dammermani, at Loro Parque Fundacion.
  • Picture of a batfish (Ogcocephalus cubiformes) at Gulf Specimen Marine Lab and Aquarium.
  • Photo: A greater rhea (Rhea americana) at the Audubon Zoo, part of the Audubon Nature Institute.
  • Green toad (Anaxyrus debilis) at the Arizona-Sonora Desert Museum.
  • Photo: A critically endangered Yamashina's ground gecko (Goniurosaurus yamashinae) from a private collection.
  • Picture of a federally endangered New Zealand pigeon (Hemiphaga novaeseelandiae) at The Animal Sanctuary, an animal rehab center in Warkworth, New Zealand.
  • Photo: Collared lory (Phigys solitarius) at Loro Parque Fundacion.
  • Photo: A Rio Santiago poison-dart frog (Dendrobates captivus) at Centro Jambatu in Quito, Ecuador.
  • Photo: South Morocco spur thighed tortoise (Testudo graeca soussensis) at the Plzen Zoo in the Czech Republic.
  • Picture of a northern spiny soft-shelled turtle (Apalone spinifera hartwegi) at the Oklahoma City Zoo.
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