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 37,930-picture Photo Ark for an animal or species. Scroll down to see every species in the Ark … if you’ve got all day.

  • 11,683 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 scissor grinder cicada (Neotibicen pruinosus) in Lincoln, NE.
  • Picture of a vulnerable male Swan goose, Anser cygnoides, at Sylvan Heights Bird Park.
  • 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.
  • Picture of a vulnerable male Eastern hoolock gibbon (Hoolock leuconedys) at the Gibbon Conservation Center.
  • Picture of a Western banded gecko (Coleonyx variegatus) at the Cheyenne Mountain Zoo.
  • Picture of a horned puffin (Fratercula corniculata) at the Monterey Bay Aquarium.
  • A vulnerable (IUCN) ashy darter (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.
  • A Gunther's banded treefrog, Hypsiboas fasciatus.
  • Male and female brown-headed cowbirds (Molothrus ater).
  • Photo: A nose-horned chameleon (Calumma nasutum) in Madagascar.
  • A male eastern bongo (Tragelaphus eurycerus isaaci) at the Great Plains Zoo.
  • A federally endangered Mexican gray wolf (Canis lupus baileyi) at the Wild Canid Survival and Research Center.
  • A Northern black-bellied whistling duck (Dendrocygna autumnalis autumnalis) at the Sylvan Heights Bird Park.
  • A greater roadrunner (Geococcyx californianus) at the Sutton Avian Research Center, Bartlesville, Oklahoma.
  • Picture of a red-crested bustard (Lophotis ruficrista) at the Saint Louis Zoo.
  • Picture of sulphur-crested cockatoo (Cacatua galerita galerita) named peanut at the Minnesota Zoo.
  • Photo: Prickly sculpin (Cottus asper) at the Fish Conservation and Culture Lab in Byron, CA at UC Davis.
  • Photo: Hardhead minnow (Mylopharodon conocephalus) at the University of California, Davis.
  • Photo: An white-bellied bustard (Eupodotis senegalensis) at Parque Biologico.
  • Photo: A Western smooth knob-tailed gecko (Nephrurus levis pilbarensis) from a private collection.
  • Photo: Red-spot assassin bug (Platymeris laevicollis) at the Bugarium at the Albuquerque BioPark.
  • Picture of a Flying steamer duck, Tachyeres patachonicus, from Sylvan Heights Bird Park.
  • Photo: Green grass lizard (Takydromus smaragdinus) at Wroclaw Zoo.
  • An endangered Malayan tiger, Panthera tigris jacksoni, at the Omaha Zoo.
  • A striped skunk (Mephitis mephitis).
  • Photo: A sun glass frog tadpole (Hyalinobatrachium aureoguttatum) at Centro Jambatu in Quito, Ecuador.
  • Photo: A Sunda ratsnake (Coelognathus subradiata) at the Dallas Zoo.
  • Texas ratsnake (Elaphe obsoleta lindheimeri) at the Omaha Zoo.
  • Photo: An endangered female gray-bellied marsupial frog (Gastrotheca litonedis) at Centro Jambatu in Quito, Ecuador.
  • Photo: Spotted tiger glasswing (Tithorea tarricina) at the San Antonio Zoo.
  • Photo: A Philippine hanging parrot (Loriculus philippensis regulus) at Negros Forest Park.
  • A Bachman’s sparrow (Peucaea aestivalis aestivalis) at the Greenwood Plantation near Thomasville, Georgia.Peucaea aestivalis
  • A critically endangered and federally endangered, six-week-old female baby gorilla (Gorilla gorilla gorilla) at the Cincinnati Zoo.
  • Picture of a male Chilean pintail (Anas georgica spinicauda) at Sylvan Heights Bird Park.
  • Photo: Freshwater drum (Aplodinotus grunniens) at the Minnesota Department of Natural Resources Center for Aquatic Mollusk Programs.
  • Photo: The foot of a Fiji Island crested iguana (Brachylophus vitiensis), a critically endangered reptile at the Taronga Zoo.
  • Picture of a longspined porcupinefish also known as a freckled porcupinefish or Porcupine pufferfish (Diodon holocanthus) at the Nebraska Aquatic Supply.
  • Picture of a batfish (Ogcocephalus cubiformes) at Gulf Specimen Marine Lab and Aquarium.
  • A critically endangered (IUCN) and federally endangered red wolf (Canis rufus gregoryi) at the Great Plains Zoo.
  • Photo: A critically endangered Louisiana pearlshell (Margaritifera hembeli) photographed at the Alabama Aquatic Biodiversity Center in Marion, AL.
  • Picture of a red-capped cardinal (Paroaria gularis) at the Miller Park Zoo.
  • Photo: A male Florida Keys mole skink (Plestiodon egregius egregius) wild caught at Big Pine Key, Florida.
  • Photo: A phantasmal dart frog (Epipediobates tricolor) at the National Aquarium in Baltimore.
  • Picture of a Grant's zebra (Equus quagga boehmi) at the Houston Zoo.
  • Photo: A decorator crab (Stenocionops furcata coelata) at Gulf Specimen Marine Lab.
  • Photo: A juvenile song sparrow (Melospiza melodia euphonia) at Rum River Central Park.
  • A juvenile skunk (Mephitis mephitis).
  • Picture of Rajah, an endangered, male, white Bengal tiger (Panthera tigris tigris) at Alabama Gulf Coast Zoo.
  • Picture of an endangered fishing cat (Prionailurus viverrinus) at the Point Defiance Zoo.
  • Photo: Sponge gobies (Evermannichthys metzelaari) at Gulf Specimen Marine Lab and Aquarium.
  • A squirrel tree frog (Hyla squirella) at the Vancouver Aquarium.
  • An eastern coachwhip (Masticophis flagellum flagellum) from a private collection.
  • Picture of a vulnerable gray bamboo lemur (Hapalemur griseus griseus) named Li'l Bit at the Cincinnati Zoo.
  • Picture of an endangered, male Okinawa black-breasted leaf turtle, Geoemyda japonica, at the Turtle Conservancy.
  • Photo: A pregnant, female Australian velvet gecko (Oedura monilis) from a private collection.
  • Photo: A bank myna (Acridotheres ginginianus) at the Plzen Zoo in the Czech Republic.
  • Photo: Alaska Skate (Bathyraja parmifera) at the Alaska SeaLife Center in Seward, AK.
  • Baglafecht Weaver (Ploceus baglafecht reichenowi) at the Henry Doorly Zoo and Aquarium.
  • Photo: A Colorado potato beetle (Leptinotarsa decemlineata) at the St. Louis Zoo.
  • A portrait of a marbled cat (Pardofelis marmorata marmorata).
  • Photo: Iberian gudgeon (Gobio lozanoi) at the Environmental Education Center of the Ribeiras de Gaia.
  • Photo: Pied-billed grebe (Podilymbus podiceps) from Nebraska Wildlife Rehab in Omaha, Nebraska.
  • Siebenrock's snake-necked turtle (Chelodina siebenrocki) at the Tennessee Aquarium.
  • A critically endangered (IUCN) and federally endangered, injured Kemp's ridley sea turtle (Lepidochelys kempii) at the Gladys Porter Zoo.
  • European white stork (Ciconia ciconia ciconia) at the Lincoln Children's Zoo.
  • Photo: A female Mindanao wrinkled hornbill, Rhabdotorrhinus leucocephalus, at Talarak Foundation.
  • Photo: A Sunda laughingthrush (Garrulax palliatus) at Taman Mini Indonesia Indah.
  • Picture of a male Himalayan monal pheasant (Lophophorus impejanus) at Pheasant Heaven, a private pheasant breeding center near Clinton, NC.
  • Photo: Isok barb (Probarbus jullieni) at Zoo Negara
  • Photo: Southwestern speckled rattlesnake (Crotalus mitchellii pyrrhus) at the LA Zoo.
  • Picture of a female long-billed curlew (Numenius americanus) at the Tracy Aviary. She's the only one in captivity.
  • A vulnerable (IUCN) and federally endangered California tiger salamander (Ambystoma californiense) at the Fresno Cahffee Zoo, Fresno, California.
  • Picture of a great black hawk (Buteogallus urubitinga) at the National Aviary breeding center.
  • A southern white-faced owl (Ptilopsis granti) at the Houston Zoo.
  • Photo: Green eye coral (Mycedium sp.) at Butterfly Pavilion.
  • Picture of two evening bats (Nycticeius humeralis) at a private collection in Oklahoma.
  • An eastern screech owl (Megascops (Otus) asio).
  • Picture of a prothonotary warbler (Protonotaria citrea) at the Virginia Aquarium.
  • Picture of a gliding or Spurrell's tree frog (Agalychnis spurrelli) at the Saint Louis Zoo.
  • Photo: A critically endangered webbed harlequin frog, (Atelopus palmatus) a at Centro Jambatu in Quito, Ecuador.
  • Photo: A four-eyed butterfly fish (Chaetodon capistratus) the Denver Zoo.
  • Photo: A walleye (Sander vitreum) at the Genoa National Fish Hatchery.
  • A Colombian four-eyed frog (Pleurodema brachyops) at the Vancouver Aquarium.
  • Picture of a fiery-billed aracari (Pteroglossus frantzii) at the Dallas World Aquarium.
  • An annulated boa (Corallus blombergi) at the Knoxville Zoo.
  • Photo: North American tube anemone (Ceriantheopsis americanus) at Gulf Specimen Marine Lab and Aquarium.
  • Photo: Cobalt winged parakeet (Brotogeris cyanoptera cyanoptera) at Loro Parque Fundacion.
  • Portrait of a male northern bobwhite quail (Colinus virginianus).
  • Photo: A Sunda porcupine (Hystrix javanica) at a private collection in Jakarta, Indonesia.
  • Photo: Yellow tree monitor (Varanus reisingeri) at Davao Crocodile Park.
  • Picture of a red-tailed hawk (Buteo jamaicensis) at the Denver Zoo.
  • A groundhog (Marmota monax).
  • A western fox snake (Elaphe vulpina vulpina).
  • Picture of a band-tailed pigeon (Columba fasciata crissalis) at the Nispero Zoo.
  • Photo: Red winged parrot (Aprosmictus erythropterus coccineopterus) at Loro Parque Fundacion.
  • Photo: Southern oyster drill (Stramonita haemastoma) at the Dallas Children's Aquarium.
  • Critically endangered (IUCN) Apache trout (Oncorhynchus apache) at the Arizona- Sonora Desert Museum in Tucson, AZ.
  • A swallow-tail kite (Elanoides forficatus) at the Audubon Center for Birds of Prey.
  • Picture of a common toad-headed turtle (Mesoclemmys nasuta) at the National Mississippi River Museum and Aquarium in Dubuque, Iowa.
  • A male house finch (Carpodacus mexicanus) at the Brown Ranch, Texas.
  • A federally endangered Karner blue butterflies (Lycaeides melissa samuelis) in pupa form , at the Toledo Zoological Gardens.
  • A white-breasted nuthatch (Sitta carolinensis).
  • A striped skunk (Mephitis mephitis).
  • Picture of a male pin-tailed whydah (Vidua macroura) at Sylvan Heights Waterfowl Park.
  • Topeka shiners (Notropis topeka) at the University of Kansas Field Station. (US: Endangered)
  • Photo: Behind the scenes look at a National Geographic Photo Ark shoot of American flamingos (Phoenicopterus ruber) at the Lincoln Children's Zoo in Lincoln, NE.
  • Photo: An unidentified species of moth at Centro Jambatu in Quito, Ecuador.
  • Photo: Costa Rican rainbow-striped galliwasp (Diploglossus monotropis) at the Nashville Zoo.
  • A federally endangered juvenile male Alabama beach mouse (Peromyscus polionotus ammobates).
  • Photo: A flier (Centrarchus macropterus) at the Medicine Park Aquarium and Natural Sciences Center in Medicine Park, OK.
  • Picture of an Oldham's leaf turtle (Cyclemys oldhamii) at the Turtle Conservation Center in Cuc Phuong National Park, Vietnam.
  • A striped skunk (Mephitis mephitis).
  • A vulnerable (IUCN) and federally endangered Black-footed cat (Felis nigripes) at the Omaha Zoo.
  • Picture of a male Aleutian cackling goose (Branta hutchinsii leucopareia) at Sylvan Heights Bird Park.
  • Malaysian horned leaf frog (Megophrys nasuta) from a private collection.
  • A tiger moth (Haploa reversa) from Dieken Prairie near Unadilla, Nebraska.
  • A mimic poison frog (Ranitomeya imitator intermedius) from a private collection.
  • A screaming hairy armadillo (Chaetophractus vellerosus) at the Omaha Zoo.
  • Photo: An Amazon sapphire pinktoe tarantula (Ybyrapora diversipes) at the Butterfly Pavilion.
  • Photo: A male lined seedeater (Sporophila lineola) at the Membeca Lagos Farm, near Rio de Janeiro, Brazil.
  • Japanese pond turtle (Mauremys japonica) at the Tennessee Aquarium.
  • Photo: Lined chiton (Tonicella lineata) at the Trinity Western University.
  • An endangered (IUCN) four-eyed turtle (Sacalia quadriocellata) at the Tennessee Aquarium.
  • Picture of a scarlet-rumped cacique (Cacicus uropygialis) at the National Aviary breeding center in Palmar, Colombia.
  • Photo: A male Kafue lechwe (Kobus kaufensis) at Parco Natura Viva in Bussolengo, Italy.
  • Picture of a red-cheeked cordon-bleu finch (Uraeginthus bengalus brunneigularis) from a private collection.
  • A moluccan imperial pigeon (Ducula perspicillata perspicillata) at the Houston Zoo.
  • Photo: A vulnerable, federally threatened male Steller's eider (Polysticta stelleri) at the Alaska SeaLife Center.
  • Photo: Wandering garter snake (Thamnophis elegans vagrans) at the Loveland Living Planet Aquarium in Draper, UT.
  • Photo: A Pfaffenhut sea urchin (Tripneustes gratilla) at Aquarium Berlin.
  • Photo: Pompadour cotinga (Xipholena punicea) at the Dallas World Aquarium.
  • Picture of a lanner falcon (Falco biarmicus) named Slider at the LA Zoo.
  • Photo: A Fiji Island banded iguana (Brachylophus fasciatus) at Omaha's Henry Doorly Zoo.
  • Picture of a magnificent rabbitfish (Siganus magnificus) at Pure Aquariums.
  • Photo: Female vivid dancer damselfly (Argia vivida) at Cedar Point Biological Station.
  • Picture of a female Papuan hornbill (Rhyticeros plicatus) at Ocean Park in Hong Kong
  • Oriental whipsnake (Ahaetulla prasina prasina) at Singapore Zoo.
  • A federally threatened Northern spotted owl (Strix occidentalis caurina) named Opal.
  • Photo: A male European bison (Bison bonasus) at Parco Natura Viva in Bussolengo, Italy.
  • An endangered Malayan tiger, Panthera tigris jacksoni, at the Omaha Zoo.
  • Photo: Silver variation, red fox (Vulpes vulpes) named "Sterling" at Southwest Wildlife Conservation Center.
  • Photo: Yellow billed Amazon, Amazona collaria, at Loro Parque Fundacion.
  • Photo: Screaming piha (Lipaugus vociferans) at the Dallas World Aquarium.
  • A giant Malaysian palm weevil (Macrochirus praetor) at the Omaha Henry Doorly Zoo, Omaha, Nebraska.
  • Photo: An eastern massasauga (Sistrurus catenatus catenatus) at Reptile Gardens.
  • Photo: Brown-throated conure (Aratinga pertinax surinama) at Piscilago.
  • Photo: Bulls-eye poison dart frog (Oophaga (Dendrobates) histrionicus) at the National Aquarium in Baltimore.
  • Photo: Mangrove snake (Boiga dendrophila latifasciata) at Davao Crocodile Park.
  • Picture of a leaf scorpionfish (Taenianotus triacanthus) at Omaha's Henry Doorly Zoo and Aquarium.
  • Picture of a wandering whistling duck (Dendrocygna arcuata) at the Sylvan Heights Bird Park.
  • Picture of an endangered (IUCN) and federally endangered lion tailed macaque, Macaca silenus, at Singapore Zoo.
  • Photo: Moth (Chemerina caliginearia) at Graham's Quinta dos Malvedos Vineyard.
  • A ringed map turtle, Graptemys oculifera, at the National Mississippi River Museum and Aquarium in Dubuque, IA. This species is listed as endangered (IUCN) and federally threatened.
  • Picture of Argentine red shovelers (Anas platalea) at the Sylvan Heights Bird Park.
  • Photo: An olive ridley sea turtle, Lepidochelys olivacea, at the Loggerhead Marinelife Center.
  • An endangered (IUCN) and federally endangered female Galapagos tortoise (Chelonoidis vicina) at the Gladys Porter Zoo in Brownsville, Texas.
  • Photo: Palawan hornbill (Anthracoceros marchei) at Wroclaw Zoo. This species is listed as vulnerable according to IUCN.
  • Photo: Bulls-eye poison dart frog (Oophaga (Dendrobates) histrionicus) at the National Aquarium in Baltimore.
  • A bushy-tailed woodrat (Neotoma cinerea cinnamomea) at Omaha's Henry Doorly Zoo and Aquarium.
  • Photo: African wild cat, (Felis silvestris ocreata) at the Moscow Zoo. This cat is named Demi Moore.
  • Photo: Two scorpion mud turtles (Kinosternon scorpioides scorpioides) at Fundacao Jardim Zoologico de Brasilia.
  • Picture of a white-faced ibis (Plegadis chihi) named Gonzo at The Living Desert in Palm Desert, California.
  • Photo: Common Indian monitor lizard (Varanus bengalensis) at Kamla Nehru Zoological Garden, Ahmedabad, India.
  • Picture of a male and female pin-tailed whydah (Vidua macroura) at Sylvan Heights Waterfowl Park.
  • Photo: Andaman barn owl (Tyto alba deroepstorffi) at Kamla Nehru Zoological Garden, Ahmedabad, India.
  • Photo: Coho salmon (Oncorhynchus kisutch) at the Alaska SeaLife Center in Seward, AK.
  • Photo: Three 20-day-old fledgling Florida grasshopper sparrows (Ammodramus savannarum floridanus) at White Oak Conservation Center, Yulee, Florida.
  • A mallard (Anas platyrhynchos) duckling.
  • A bordered patch butterfly (Chlosyne lacinia) at the Gladys Porter Zoo in Brownsville, Texas.
  • Photo: Grevy's zebra at the Lee G. Simmons Conservation Park and Wildlife Safari near Ashland, Nebraska.
  • Photo: Nubian goat at the Lincoln Children's Zoo.
  • Photo: Timor monitor (Varanus timorensis) at Wroclaw Zoo.
  • A Northwestern neotropical rattlesnake (Crotalus durissus culminatus) at the Gladys Porter Zoo in Brownsville, Texas. This is a xanthic specimen, lacking normal pigmentation.
  • Male bees (Bombus sp.) swarm around sunflowers at Branched Oak Lake.
  • A southern three-banded armadillo (Tolypeutes matacus) at the Lincoln Children's Zoo, Lincoln, Nebraska. (IUCN: Near Threatened)
  • Photo: An ornate flying snake, Chrysopelea ornata ornatissima, at the Assam State Zoo cum Botanical Garden in Guwahati, Assam, India.
  • Photo: Mindanao brown deer (Rusa marianna nigella) at Crocolandia in the Philippines.
  • A federally-endangered snail kite (Rostrhamus sociabilis) at the Audubon Center for Birds of Prey, a rehab and education center.
  • Photo: Sea apple (Pseudocolochirus violaceus) at Butterfly Pavilion.
  • Photo: Crossbill (Loxia curvirostra curvirostra) at Alpenzoo in Innsbruck, Austria.
  • Photo: A brown trout (Salmo trutta morpha), wild caught on the Clark Fork River near Noxon, Montana.
  • Photo: An African magpie (Pica mauritanica) at the Plzen Zoo in the Czech Republic.
  • Photo: A naked mole rat (Heterocephalus glaber) at the Lincoln Children's Zoo.
  • Picture of a male, vulnerable North Sulawesi babirusa (Babyrousa celebensis) at the LA Zoo.
  • Photo: A fawn Sitka blacktail deer (Odocoileus hemionus) at the Alaska Zoo.
  • Picture of a Malagasy leaf-nosed snake (Langaha madagascariensis) in Madagascar.
  • Picture of purple sea urchins (Strongylocentrotus purpuratus) at the National Mississippi River Museum and Aquarium in Dubuque, Iowa.
  • Photo: A campo troupial (Icterus jamacaii) at Fundacao Jardim Zoologico de Brasilia.
  • Photo: Cupboard spider (Steatoda grossa) at the Exmoor Zoo.
  • Photo: A vulnerable banded palm civet (Hemigalus derbyanus) named Yala at the Cincinnati Zoo. Yala means "go" in Arabic, the keepers said, which is appropriate because this creature moved like greased lighting.
  • Picture of a long-billed corella (Cacatua tenuirostris) at the Healesville Sanctuary.
  • Photo: Patagonian sierra finch (Phrygilus patagonicus) in Choussy, France.
  • Picture of a tuatara (Sphenodon punctatus) at the St. Louis Zoo.
  • Picture of a vulnerable binturong (Arctictis binturong) at the Great Bend Brit Spaugh Zoo.
  • Picture of a Potto (Perodicticus potto) at the Cleveland Metroparks Zoo.
  • Photo: A scorpion mud turtle (Kinosternon scorpiodes) at the Chapultepec Zoo in Mexico City.
  • Photo: A female wolf spider (Schizocosa communis) from the University of Nebraska-Lincoln.
  • Photo: Three female leopard geckos (Eublepharis macularius) at the Sunset Zoo in Manhattan, Kansas.
  • An Ozark zigzag salamander (Plethodon angusticlavius) at Missouri State University, Springfield, Missouri.
  • An American oystercatcher (Haematopus palliatus) at the Sedge Island Natural Resource Education Center in the Sedge Islands Marine Conservation Zone, Barnegat Bay, New Jersey.
  • An Ozark zigzag salamander (Plethodon angusticlavius) at Missouri State University, Springfield, Missouri.
  • Photo: Black rockfish (Sebastes melanops) at East Bay Regional Park District.
  • A kit fox (Vulpes macrotis) named Frankie at The Living Desert in Palm Desert, California.
  • Photo: A juvenile zebra shark, Stegostoma fasciatum, at Shark Reef Aquarium.
  • Picture of a Caspian tern (Hydroprogne caspia) at Tracy Aviary.
  • Photo: Eastern skink (Scincus mitranus) at the at the Albuquerque BioPark Aquarium.
  • An endangered (IUCN) Bernhard's mantella (Mantella bernhardi) at the St. Louis Zoo.
  • Photo: An eastern massasauga (Sistrurus catenatus catenatus) at Reptile Gardens.
  • Picture of a vulnerable (IUCN) and federally endangered Attwater's prairie chicken (Tympanuchus cupido attwateri) at the Caldwell Zoo in Tyler, Texas.
  • Photo: An elegant parrot (Neophema elegans) at the Plzen Zoo.
  • Photo: An Eastern hellbender (Cryptobranchus alleganiensis alleganiensis) at the St. Louis Zoo. This facility is famous for rearing hellbenders, but also for studying cures for chytrid (bd) fungus and other threats.
  • An eastern chipmunk (Tamias striatus fisheri) at the New York State Zoo.
  • Photo: Bottlebrush crayfish, Barbicambarus cornutus, at the Crayfish lab in West Liberty University in West Liberty, WV. This specimen is from Baron Creek, TN.
  • Photo: A Ganzhorn’s mouse-lemur (Microcebus ganzhorni) at the Plzen Zoo in the Czech Republic.
  • A captive reindeer (Rangifer tarandus) with its handler at the University of Alaska in Fairbanks.
  • Photo: An unidentified ground beetle belonging to the Carabidae family at Museo d'Orbigny.
  • A West African gaboon viper (Bitis gabonica rhinoceros) at Zoo Atlanta.
  • An endangered Riobamba marsupial frog (Gastrotheca riobambae) at Pontificia Universidad Catolica.
  • Picture of two vulnerable (IUCN) and federally endangered Cabot's tragopan (Tragopan caboti) at Pheasant Heaven, a private pheasant breeding facility near Clinton, NC.
  • Photo: A starry flounder (Platichthys stellatus) at the Alaska SeaLife Center.
  • Photo: A Malayan box turtle (Cuora amboinensis amboinensis) at the Avilon Zoo. This species is listed as vulnerable on the IUCN red list.
  • Photo: A Nathusius' pipistrelle, Pipistrellus nathusii, at Wildwood Trust near Canterbury, England.
  • Photo: A cormorant (Phalacrocorax carbo carbo) at Hessilhead Wildlife Rescue.
  • Photo: A Tug Valley crayfish, Cambarus hatfieldi, wild caught near West Liberty, West Virginia.
  • Photo: A Texas banded gecko (Coleonyx brevis) at Reptile Gardens.
  • A banded leaf-toed gecko (Hemidactylus maculatus) from a private collection.
  • Picture of a Sonoran spotted whiptail lizard (Aspidoscelis sonorae) at Omaha's Henry Doorly Zoo.
  • Photo: A hoverfly (Syrphus or Toxomerus species) photographed at Spring Creek Prairie Audubon Center near Denton, NE. This animal was originally collected from Bobcat Prairie near Denton, NE.
  • An endangered San Lucas marsupial frog (Gastrotheca pseustes) at Pontificia Universidad Catolica.
  • Photo: White seaperch (Phanerodon furcatus) at East Bay Regional Park District.
  • Photo: Striped brook snake, Pseudoxyrhopus quinquelineatus, at the Plzen Zoo.
  • Photo: An Atlantic croaker (Micropogonias undulatus) at the Institute of Marine Mammal Studies (IMMS) at Gulfport, MS. This animal is part of their public education area.
  • A biologist studies 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.
  • El Segundo flower-loving fly (Rhaphiomidas terminatus terminatus). This insect was thought to be extinct since the end of the 1960s but a small remnant population of less than 100 individuals was discovered in the early 2000s.
  • Photo: A clown leporinus (Leporinus klausewitzi) at the Denver Zoo.
  • Picture of a vulnerable Malay peacock pheasant (Polyplectron malacense) at Pheasant Heaven, a private pheasant breeding center near Clinton, NC.
  • Photo: Teays River crayfish (Cambarus sciotensis) from the wild.
  • Photo: A female Cuban kestrel (Falco sparverius sparveroides) named Sweetie at the Marathon Wild Bird Center in Marathon, Florida.
  • Photo: A black piranha (Serrasalmus rhombeus) at Shark Reef Aquarium at Mandalay Bay, Las Vegas, NV.
  • Photo: An African bullfrog (Oyxicephalus adspersus) at Reptile Gardens.
  • A northern green frog (Rana clamitans melanota) near Watertown, NY.
  • A white-striped gecko (Gonatodes vittatus) from a private collection.
  • Photo: A shrimp (Caridina lanceifrons) from a private collection.
  • Miss Sandy Hill, a federally endangered Mississippi sandhill crane (Grus canadensis pulla), at the Audubon Center for Research of Endangered Species. Only 110 of this sandhill crane subspecies exists in the wild. Only another 45 birds are in captivity.
  • Photo: Cockroach (Byrsotria rothi) at Wroclaw Zoo.
  • A king cobra (Ophiophagus hannah) at Reptile Gardens.
  • Photo: An Afro Australian fur seal (Arctocephalus pusillus) at the Faunia zoo in Madrid, Spain.
  • Gouldian finch (Chloebia gouldiae) at the Great Plains Zoo.
  • A desert massasauga (Sistrurus catenatus edwardsii) at the Gladys Porter Zoo in Brownsville, Texas.
  • Photo: Walking stick (Brasidas samarensis) at the Budapest Zoo.
  • A mossy leaf-tailed gecko (Uroplatus sikorae) at the LA Zoo.
  • A Common chuckwalla, Sauromalus ater, at the Plzen Zoo.
  • Picture of an ocellated turkey (Meleagris ocellata) at the Dallas World Aquarium.
  • Photo: An eastern blacknose dace (Rhinichthys atratulus) at the Center for Aquatic Mollusk Programs in Lake City, Minnesota.
  • Photo: A unidentified brittle star (Ophiophragmus sp.) Gulf Specimen in Panacea, Florida.
  • Photo: Rough-tailed bowfoot gecko (Cyrtopodion scabrum) from a private collection.
  • A chestnut-fronted macaw or severe macaw (Ara severus) at the Fort Worth Zoo.
  • Picture of a red legged seriema (Cariama cristata) at the Plzen Zoo in the Czech Republic.
  • A Mexican ratsnake (Elaphe flavirufa flavirufa) at the Gladys Porter Zoo in Brownsville, Texas.
  • Photo: Caper white butterfly (Belenois java) at Melbourne Zoo. This is a male.
  • Picture of a garganey teal (Anas querquedula) at Sylvan Heights Bird Park.
  • Photo: Snakehead gudgeon (Giuris margaritacea) at the Freshwater Ecology and Marine Biology Dept. at Templestowe College.
  • A Hoffmann’s two-toed sloth (Choloepus hoffmanni florenciae) at the Gladys Porter Zoo in Brownsville, Texas.
  • A Red tegu lizard (Tupinambis rufescens) at Parco Natura Viva, in Bussolengo, Italy.
  • Picture of a great anglehead lizard (Gonocephalus grandis) from a private collection.
  • The tail of a giant day gecko (Phelsuma madagascariensis grandis) from a private collection.
  • Picture of a mealy Amazon parrot (Amazona farinosa) at Parque Zoologico Nacional, the zoo in Santo Domingo, Dominican Republic.
  • A Congo caecilian (Herpele squalostoma) at the Sedgwick County Zoo.
  • Photo: An eastern leopard tortoise (Stigmochelys pardalis babcocki) at the Caldwell Zoo in Tyler, Texas.
  • Photo: Redbreast tilapia (Tilapia rendalli) at L'aquarium tropical du palais de la Porte DorŽe.
  • Photo: A rhinoceros iguana (Cyclura cornuta) at Parco Natura Viva in Bussolengo, Italy.
  • A lilac-breasted roller, Coracias caudatus.
  • A Matecumbe Key raccoon (Procyon lotor inesperatus) at Ark Angels Wildlife Rescue.
  • Picture of a federally threatened, Canada lynx (Lynx canadensis) named Yukon at Point Defiance Zoo.
  • Photo: An otocinclus catfish (Macrotocinclus affinis) at the Singapore Zoo's River Safari area.
  • A beaded lizard (Heloderma horridum exasperatum) at Reptile Gardens.
  • Picture of a baracoa anole (Anolis baracoae) in a private collection in Houston, Texas.
  • Great egg fly (Hypolimnas bolina) at Zoo Negara.
  • Photo: Two critically endangered Madagascar pochard, Aythya innotata, at the Pochard Captive Breeding Center in Antsohihy, Madagascar.
  • Picture of a smooth stick insect (Clitarchus hookeri) at the Auckland Zoo.
  • Picture of a Swainson's thrush (Catharus ustulatus), at St. Francis Wildlife Association, a wildlife rescue center near Quincy, Florida.
  • A Nashville crayfish (Orconectes shoupi) at the Tennessee Wildlife Resources Agency, Nashville, Tennessee. (IUCN: Endangered, US: Endangered)
  • Picture of a Spotless stout newt (Pachytriton labiatus) at the Oklahoma City Zoo.
  • Photo: Greek rock lizard (Hellenolacerta graeca) at Wroclaw Zoo.
  • Photo: A yellow-backed ornamental tarantula, Poecilotheria smithi, from a private collection.
  • Photo: Southern Angle headed dragon (Lophosaurus spinipes) at Lilydale High School in Australia.
  • An American crow (Corvus brachyrhynchos) at the Sutton Avian Research Center, Bartlesville, Oklahoma.
  • Photo: Changeable hawk-eagle (Nisaetus cirrhatus limnaeetus) at ACCB in Siem Reap, Cambodia.
  • Picture of a veiled chameleon (Chamaeleo calyptratus) at the Rolling Hills Wildlife Adventure.
  • An Ozark zigzag salamander (Plethodon angusticlavius) at Missouri State University, Springfield, Missouri.
  • Photo: Lyretail Wrasse (Thalassoma lunare) from Pure Aquariums.
  • Madagascar spiny hopper frog (Scaphiophyrne pustulosa) from a private collection.
  • Photo: Anaimalai spiny lizard (Salea anamallayana) at Urban Ark Conservation
  • Photo: A Philippine king cobra (Ophiophagus hannah) at the Avilon Zoo. This species is listed as vulnerable on the IUCN Red List.
  • Photo: A green terror (Andinoacara rivulatus) at the Institute of Marine Mammal Studies (IMMS) at Gulfport, MS. This animal is part of their public education area.
  • A red salamander (Pseudotriton ruber) at Zoo Atlanta, Atlanta, Georgia.
  • Photo: A female Eurasian badger (Meles meles) at Centro Fauna Selvatica "Il Pettirosso".
  • A broken striped newt (Notophthalmus viridescens dorsalis) at the North Carolina Zoo.
  • A Kuhl's flying gecko (Gekko kuhli) at Taman Mini Indonesia Indah.
  • Picture of a Venezuela lancehead (Bothrops venezuelensis) at the Sedgwick County Zoo.
  • Photo: A pucayacu morph of the Darwin-Wallace poison dart frog (Epipedobates darwinwallacei) at Centro Jambatu in Quito, Ecuador.
  • Photo: A male Jones’s silver pheasant (Lophura nycthemera jonesi) at a private collection.
  • An eyelash viper (Bothriechis schlegelii) at Reptile Gardens.
  • Photo: A female eastern towee (Pipilo erythrophthalmus erythrophthalmus) at Rum River Central Park.
  • A brown tree snake (Boiga irregularis).
  • Picture of a Naoko's fairy wrasse (Cirrhilabrus naokoae) at Nebraska Aquatic Supply.
  • A Bornean blood python (Python brongersmai) at Zoo Atlanta.
  • Photo: Common rough woodlouse (Porcellio scaber) at the Exmoor Zoo.
  • Photo: African mantis (Hierodula gracilis) at the Moscow Zoo.
  • A Mexican rosy boa (Lichanura trivirgata trivirgata) at the Indianapolis Zoo.
  • Photo: A red-fronted coot (Fulica rufifrons) at the Buin Zoo.
  • Photo: A cunner (Tautogolabrus adspersus) at the Maine State Aquarium in West Boothbay, ME.
  • Photo: A blue king crab (Paralithodes platypus) at the Alutiiq Pride Shellfish Hatchery in Seward, AK.
  • Photo: A green turaco (Tauraco persa persa) from a private collection in Choussy, France.
  • Picture of an eastern blue-tongued skink (Tiliqua scincoides scincoides) at the Lincoln Children's Zoo.
  • Photo: A critically endangered Javan green magpie (Cissa thalassina) at Taman Safari.
  • An endangered (IUCN) and federally endangered African wild dog (Lycaon pictus) at the Omaha Zoo.
  • African moon moth (Argema mimosae) at the Omaha Henry Doorly Zoo.
  • A critically endangered (IUCN) and federally endangered Panamanian golden frog (Atelopus zeteki) at the Cheyenne Mountain Zoo.
  • A black wood turtle (Rhinoclemmys funerea) at the San Antonio Zoo. (IUCN: Near Threatened)
  • Photo: Trumpetfish (Aulostomus maculatus) at the Albuquerque BioPark Aquarium.
  • Photo: Florida bush katydid (Stilpnochlora couloniana) at the Exmoor Zoo.
  • Picture of a Bermuda diamondback terrapin (Malaclemys terrapin). This may soon be designated as a separate subspecies or even a full species, and was photographed at the Bermuda Aquarium, Museum and Zoo.
  • Picture of Purple glossy starling (Lamprotornis purpureus) at the Kansas City Zoo.
  • Photo: A great horned owl (Bubo virginanus virginanus) at Houston SPCA’s Wildlife Center of Texas.
  • A critically endangered (IUCN) and federally endangered, tubercled blossom mussel (Epioblasma rangiana rangiana) at the Columbus Zoo.
  • Photo: Sanibel Island marsh rabbit (Sylvilagus palustris paludicola) from Sanibel Island.
  • 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 male Lewis silver pheasant (Lophura nycthemera lewisi) at Penang Bird Park.
  • A saddle billed stork (Ephippiorhynchus senegalensis) at the Gladys Porter Zoo in Brownsville, Texas.
  • Photo: Colt coral (Cladiella sp.) at Butterfly Pavilion.
  • Sonoran mountain kingsnake (Lampropeltis pyromelana) at the Arizona-Sonora Desert Museum.
  • Picture of a vulnerable spiny or thorny seahorse (Hippocampus histrix) at the Newport Aquarium.
  • Photo: An ankas morph of the Epibatidin poison dart frog (Epipedobates anthonyi) at Centro Jambatu in Quito, Ecuador.
  • An endangered (IUCN) robber or muscial rainfrog/Panama robber frog (Pristimantis museosus) at Zoo Atlanta.
  • A smallmouth buffalo (Ictiobus bubalus) at Gavins Point National Fish Hatchery and Aquarium.
  • Photo: Brimstone canary (Serinus sulphuratus) in Santa Cruz, Tenerife, Spain.
  • Photo: Endangered bluemask darters (Etheostoma akatulo) at Conservation Fisheries.
  • A bumble bee walking toad (Melanophryniscus stelzneri) at Seattle Reptiles.
  • Photo: A Mexican west coast rattlesnake (Crotalus basiliscus) at Reptile Gardens.
  • Photo: A female yellow-bellied marmot (Marmota flaviventris) at the hibernation study lab of Dr. Greg Florant at Colorado State University.
  • Photo: A white-tailed hawk (Geranoaetus albicaudatus hypospodius) at SIA, the Comanche Nation Ethno-Ornithological Initiative.
  • Photo: An endangered female gray-bellied marsupial frog (Gastrotheca litonedis) at Centro Jambatu in Quito, Ecuador.
  • An undescribed species of catfish (Aspidoras sp.) at L’aquarium tropical du palais de la Porte DorŽe.
  • A pair of vulnerable 1-year-old fossas, Cryptoprocta ferox, at the Omaha Zoo. This is Madagascar's largest mammalian predator, and it's numbers are declining in the wild.
  • Pine Barrens treefrog (Hyla andersonii) at the Toledo Zoo.
  • Photo: A big-eyed toad bug (Gelastocoris oculatus) at the Pontotoc Ridge Preserve near Connerville, OK.
  • A northern treeshrew (Tupaia belangeri) at the Gladys Porter Zoo in Brownsville, Texas.
  • Photo: A Chilean lapwing (Vanellus chilensis chilensis) at Unidad de Rehabilitación de Fauna Silvestre.
  • Photo: An Eastern Montpellier snake (Malpolon insignitus) at Prague Zoo.
  • Photo: A Mallard duckling, Anas platyrhynchos, in Lincoln, Nebraska.
  • New River morph of a dyeing poison frog (Dendrobates tinctorius) from a private collection.
  • A critically endangered (IUCN) and federally endangered Mississippi gopher frog (Lithobates sevosa) from a private collection.
  • Picture of a federally endangered scarlet-chested parrot (Neophema splendida) at Parrots in Paradise, a bird attraction in Glass House Mountains, Queensland.
  • Photo: Himalayan brown bear (Ursus arctos isabellinus) at Himalayan Nature Park in Kufri.
  • Picture of a mourning cloak butterfly (Nymphalis antiopa antiopa) at the Minnesota Zoo.
  • A pair of giant thorny stick insects (Trachyaretaon carmelae) from the Plzen Zoo in the Czech Republic. These are from the Philippines, possibly from Babuyan Island.
  • Photo: Velvet Ant, Family: Mutillidae sp., not yet described.
  • A federally endangered woodland caribou (Rangifer tarandus caribou).
  • Photo: Marajo amazon, Amazona ochrocephala xantholaema, at Loro Parque Fundacion.
  • Picture of a vulnerable Hispaniolan yellow tree frog (Osteopilus pulchrilineatus) at the Parque Zoologico Nacional in Santo Domingo, Dominican Republic.
  • Picture of a yellow-bellied glider (Petaurus australis) named Shy at the Taronga Zoo.
  • A rainbow scarab, Phanaeus vindex, with parasites riding on its neck, at the Houston Zoo.
  • A Merriam’s chipmunk (Neotamias merriami merriami) at the Santa Barbara Wildlife Care Network.
  • A red-collared lorikeet (Trichoglossus rubritorquis) from Brisbane, Queensland, Australia.
  • Photo: An eastern blacknose dace (Rhinichthys atratulus) at the Center for Aquatic Mollusk Programs in Lake City, Minnesota.
  • Picture of a Scimitar-horned oryx (Oryx dammah) at Rolling Hills Zoo.
  • Photo: A Javan water monitor (Varanus salvator bivittatus) at Taman Mini Indonesia Indah.
  • Photo: Northern white-lipped mud turtle (Kinosternon leucostomum leucostomum) at the National Mississippi River Museum and Aquarium in Dubuque, Iowa.
  • Photo: A Yellow Fever mosquito (Aedes aegypti) at the Urban Entomology Lab at the University of Florida at Gainesville.
  • Photo: Horseface blenny (Ophioblennius steindachneri) photographed at Downtown Aquarium in Denver, Colorado.
  • Photo: Dwarf hissing cockroach (Elliptorhina chopardi) at the Budapest Zoo.
  • A critically endangered (IUCN) and federally endangered bactrian camel, Camelus bactrianus, at the Lincoln Children's Zoo.
  • Picture of a Cuban grassquit (Tiaris canora) from a private collection.
  • Picture of a Rio Branco morph of a strawberry poison frog (Oophaga pumilio) from a private collection.
  • A Sonoran desert toad (Incilius alvarius) at the Tulsa Zoo.
  • A vulnerable North American wood turtle (Glyptemys insculpta) from a private collection.
  • A black-tailed prairie dog (Cynomys ludovicianus) at Zoo Atlanta.
  • Photo: A Mexican bobwhite (Colinus virginianus mexicanus) at Penang Bird Park.
  • Photo: Two burnished-buff tanager (Tangara cayana) at Zoopark Zajezd.
  • Picture of a blue-tailed fire-bellied newt (Cynops cyanurus) at the St. Louis Zoo.
  • Photo: An unidentified leaf beetle (Cryptocephalus sp.) at Graham's Quinta dos Malvedos Vineyard.
  • Picture of a silvery marmoset (Mico argentatus) at the Plzen Zoo in the Czech Republic.
  • Photo: A juvenile big-eared opossum (Didelphis aurita) at the Membeca Lagos Farm, near Rio de Janeiro, Brazil.
  • Green frog (Rana clamitans) at the Toledo Zoo.
  • Picture of a male canvasback duck (Aythya valisineria) at the John Ball Zoo in Grand Rapids, Michigan.
  • A Chinese black coin turtle (Mauremys nigricans) at Missouri State University. (IUCN: Endangered)
  • Photo: A fireball lily (Scadoxus cinnabarinus) from Bioko Island, Equatorial Guinea.
  • A western fox snake (Elaphe vulpina vulpina).
  • Picture of Terri, a hand-raised, female Javan rhinoceros hornbill (Buceros rhinoceros silvestris) at the Cincinnati Zoo.
  • Photo: A cattle egret (Bubulcus ibis ibis) named DeeDee at Rogers Wildlife Rehabilitation in Hutchins, TX.
  • Photo: Saban anole (Anolis sabanus) at Wroclaw Zoo.
  • A Japanese giant salamander (Andrias japonicus) at the San Antonio Zoo. (IUCN: Near Threatened)
  • Photo: Harapan, a four-year-old male Sumatran rhino (Dicerorhinus sumatrensis), at White Oak Conservation Center.
  • Photo: Alaskan ronquil (Bathymaster caeruleofasciatus) at the Alaska SeaLife Center in Seward, AK.
  • 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 zebra flatworm (Stylochus zebra) at Gulf Specimen in Panacea, Florida.
  • An endangered (IUCN) and federally endangered giant panda (Ailuropoda melanoleuca) at Zoo Atlanta.
  • A white rhinoceros (Ceratotherium simum simum) at Rolling Hills Wildlife Adventure in Salina, Kansas.
  • Photo: A blue discus (Symphysodon haraldi) at Dallas World Aquarium.
  • Picture of a blue-faced parrotfinch (Erythrura trichroa) from a private collection.
  • Photo: Green oropendola (Psarocolius viridis) in Choussy, France.
  • A male (right) and female brown-headed cowbird (Molothrus ater) at the San Antonio Zoo.
  • Bridled white-eyes (Zosterops saypani) at the Sedgwick County Zoo. This species is listed on IUCN as Endangered.
  • Photo: A critically endangered European mink (Mustela lutreola) at the Madrid Zoo.
  • Relict darter (Etheostoma chienense) a federally threatened species at Conservation Fisheries, a native stream fish breeding center. The female is smaller than the male in with her.
  • Picture of a Florida pink millipede (Narceus americanus) at the St. Louis Zoo.
  • Picture of a Pileated woodpecker (Dryocopus pileatus abietcola) at the Virginia Aquarium.
  • Photo: L260 Queen Arabesque plecostomus (Hypancistrus sp.) from a private collection.
  • Photo: South Diamond Gila trout (Oncorhynchus gilae gilae) at Mora National Fish Hatchery.
  • A spectral tarsier (Tarsius fuscus) at Night Safari, part of Wildlife Reserves Singapore.
  • A honeybee (Apis mellifera) photographed in a studio in Lincoln, NE.
  • Photo: Western reef egret (Egretta gularis) at Kamla Nehru Zoological Garden, Ahmedabad, India.
  • Photo: A male desert bighorn sheep ram (Ovis canadensis nelsoni) at the Arizona-Sonora Desert Museum in Tucson, AZ.
  • Photo: Yellow spotted monitor (Varanus panoptes) from a private collection.
  • Photo: A giant emperor or giant charaxes butterfly (Charaxes castor) at the Omaha Henry Doorly Zoo, in Omaha, Nebraska.
  • A chocolate chip sea star, Protoreaster nodosus.
  • A gecko (Hemidactylus fasciatus) with a broken tail, which will grow back, from Bioko Island, Equatorial Guinea.
  • A flathead catfish (Pylodictus olivaris) at Gavins Point National Fish Hatchery and Aquarium.
  • Photo: Brassy minnows (Hybognathus hankinsoni) at Schramm Education Center near Gretna, NE.
  • A yellow-headed blackbird (Xanthocephalus xanthocephalus) at the Wildlife Center in Espanola, New Mexico.
  • Photo: Texas patch-nosed snake (Salvadora grahamiae lineata) at the Phoenix Zoo.
  • A Tartar sand boa (Eryx tataricus) at the Buffalo Zoo, Buffalo, New York.
  • Photo: An Eurasian eagle owl (Bubo bubo sibiricus) at Parco Natura Viva in Bussolengo, Italy.
  • A Desert Iguana (Dipsosaurus dorsalis) at the Buffalo Zoo.
  • A fan foot gecko (Ptyodactylus hasselquisti) at Scaly Dave's Herp Shack.
  • Picture of a vulnerable Philippine duck (Anas luzonica) at the Sylvan Heights Bird Park.
  • Picture of a band-tailed guan (Penelope argyrotis) at the National Aviary breeding center.
  • A Florida cooter (Pseudemys floridana) at the Chapultepec Zoo in Mexico City.
  • Photo: Blue crayfish (Procambarus alleni) at L'aquarium tropical du palais de la Porte DorŽe.
  • A federally endangered Plymouth red-bellied turtle (Pseudemys rubriventris) sometimes called the Plymouth red-bellied cooter, at the Buttonwood Park Zoo in New Bedford, Massachusetts. This was the first freshwater turtle species in the United States to be listed as endangered.
  • Picture of a bay-headed tanager (Tangara gyrola) at the Houston Zoo.
  • Photo: An endangered red-fronted macaw (Ara rubrogenys) at the Miller Park Zoo.
  • Red-legged partridges (Alectoris rufa) from Cammack Gamebird Farm.
  • Picture of an American magpie (Pica hudsonia) at The Wildlife Center in Espanola, New Mexico.
  • Photo: Streaky seedeater (Crithagra striolatus) in Choussy, France.
  • Photo: An endangered Malayan elephant (Elephas maximus indicus) at Singapore Zoo.
  • A juvenile Brazilian porcupine named "Piglet" (Coendou prehensilis) at the St. Augustine Alligator Farm Zoological Park in St. Augustine, Florida.
  • Photo: Harlequin rasbora (Trigonostigma heteromorpha) at Zoo Negara.
  • A black-throated monitor (Varanus albigularis ionidesi) at the Kansas City Zoo.
  • Picture of a male red-headed woodpecker (Melanerpes erythrocephalus) named 'Nigel' at St. Francis Wildlife Association, a wildlife rescue center near Quincy, Florida.
  • Photo: A thimble jellyfish (Linuche unguiculata) at Aquarium Berlin.
  • Picture of a Hispaniolan common treefrog (Osteopilus dominicensis) at the Parque Zoologico Nacional in Santo Domingo, Dominican Republic.
  • Photo: Common moorhen (Gallinula chloropus) in Choussy, France.
  • Imperial parrot (Amazona imperialis) at the Rare Species Conservatory Foundation. This is one of just two imperial parrots in captivity, and the only one captive in the U.S. This bird is endangered, with just 350-450 birds in the wild on the island of Dominica in the eastern Caribbean. This bird was hand raised.
  • Picture of an Asian fairy bluebird (Irena puella) at the Sedgwick County Zoo.
  • An Eastern giant eland (Taurotragus derbianus gigas) at the Houston Zoo.
  • Picture of a fiery-billed aracari (Pteroglossus frantzii) at the Dallas World Aquarium.
  • Photo: Viperine snake (Natrix maura) at Wroclaw Zoo.
  • An endangered female O’Shaughnessy’s chameleon (Calumma oshaughnessyi) in Madagascar.
  • Photo: Rosyside dace (Clinostomus funduloides) at Conservation Fisheries.
  • Photo: An endangered male southern mountain reedbuck (Redunca fulvorufula fulvorufula) at Tierpark Berlin.
  • Photo: A scorpion mud turtle (Kinosternon scorpiodes) at the Chapultepec Zoo in Mexico City.
  • Photo: An Australian helmeted gecko (Diplodactylus galeatus) from a private collection.
  • Photo: Hong Kong whipping frog (Polypedates megacephalus) at the Angkor Centre for Conservation of Biodiversity (ACCB) in Siem Reap, Cambodia.
  • A crevice spiny lizard (Sceloporus poinsettii) at the Rolling Hills Wildlife Adventure in Salina, KS
  • A lovely poison frog, Phyllobates lugubris.
  • Photo: A juvenile black milk snake, Lampropeltis triangulum gaigeae, at the Crayfish lab in West Liberty University in West Liberty, WV.
  • Photo: A trumpet manucode (Phonygammus keraudrenii) at the Zoo Berlin.
  • Photo: A black mamba (Dendroaspis polylepis) at Omaha's Henry Doorly Zoo and Aquarium.
  • Photo: A female black vasa, Coracopsis nigra nigra, at Loro Parque Fundacion.
  • Picture of a red-fronted brown lemur (Eulemur rufifrons) at the Plzen Zoo in the Czech Republic.
  • Picture of a pink-footed goose, Anser brachyrhynchus, at Sylvan Heights Bird Park.
  • A northern flicker (Colaptes auratus auratus) at the Sutton Avian Research Center, Bartlesville, Oklahoma.
  • Picture of a black-fingered mud crab (Panopeus herbstii) at Gulf Specimen Marine Lab and Aquarium.
  • Photo: Red-handed tamarin (Saguinus midas) at the Dallas World Aquarium.
  • Picture of a lowland copperhead (Austrelaps superbus) at the Healesville Sanctuary.
  • A federally endangered female Alabama beach mouse (Peromyscus polionotus ammobates), nibbles on some cheese.
  • A pallid bat (Antrozous pallidus) at the North Carolina Zoo, Asheboro, North Carolina.
  • Photo: An American barn owl (Tyto alba pratincola) at Houston SPCA’s Wildlife Center of Texas.
  • Photo: Capped langur (Trachypithecus pileatus) at the Assam State Zoo in Guwahati, Assam, India.
  • Photo: A whiting-pout (Trisopterus luscus) at the Littoral Station of Aguda, Portugal.
  • Photo: Philippine leaf-spade (Phyllium philippinicum) at the Moscow Zoo.
  • Photo: Waved sphinx moth (Ceratomia undulosa) at Cedar Point Biological Station.
  • A North American beaver (Castor canadensis) at Nebraska Wildlife Rehab.
  • Photo: A Gabon blue dwarf baboon (Heterothele gabonensis) from a private collection.
  • 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 Javan kingfisher (Halcyon cyanoventris) at Bali Bird Park in Bali, Indonesia.
  • An American lady butterfly (Vanessa virginiensis) from a prairie woodland near Cross Lake, Minnesota.
  • Photo: A luzon kukri snake (Oligodon ancorus) at the University of the Philippines.
  • An ocelot (Leopardus pardalis) at Omaha’s Henry Doorly Zoo and Aquarium.
  • Photo: A blue-black grassquit (Volatinia jacarina jacarina) at the Membeca Lagos Farm, near Rio de Janeiro, Brazil.
  • Photo: Graveldiver (Scytalina cerdale) at the Alaska SeaLife Center in Seward, AK.
  • Picture of a common bamboo viper (Trimeresurus elegans) at the Dallas Zoo.
  • Photo: A male Nepal koklass pheasant (Pucrasia macrolopha nipalensis) from a private collection.
  • Photo: An Australian sea apple (Pseudocolochirus axiologus) at the Dallas World Aquarium.
  • A narrow-winged spur-throat grasshopper (Melanoplus angustipennis) in Lincoln, Nebraska.
  • Photo: Palawan binturong (Arctictis binturong whitei) eating a banana at the Nashville Zoo.
  • Photo: European roller (Coracias garrulus) at Wroclaw Zoo.
  • A mata mata (Chelus fimbriatus) at Reptile Gardens.
  • Photo: A group of sea grapes (Perophora viridis) on a colonial animal called a pink hydroid (Eudendrium carneum) at Gulf Specimen in Panacea, Florida.
  • A male Mt. Kilimanjaro two-horned chameleon or dwarf Fischer's chameleon (Kinyongia tavetana) from the Omaha Zoo.
  • A Florida scrub lizard (Sceloporus woodi) from Cape Canaveral Florida.
  • A dwarf caiman (Paleosuchus palpebrosus) at the Sunset Zoo.
  • A white-sided rat snake (Elaphe obsoleta obsoleta) at Safari Land Pet Center.
  • Photo: A female short-billed honeycreeper (Cyanerpes nitidus) at Zoopark Zajezd.
  • The chrysalis of a banded orange heliconian butterfly (Dryadula phaetusa) at the Insectarium in New Orleans, Louisiana.
  • Picture of candy cane coral (Caulastrea furcata) at the Columbus Zoo.
  • An endangered (IUCN) Golfodulcean poison frog (Phyllobates vittatus) from a private collection.
  • Photo: Ground-hopper (Erianthus versicolor) at Wroclaw Zoo.
  • Photo: A male Oriental pied hornbill (Anthracoceros albirostris convexus) at Jurong Bird Park, part of Wildlife Reserves Singapore.
  • Photo: Western purple-faced langur (Trachypithecus velustus nestor) at the Singapore Zoo.
  • Boreal chorus frog (Pseudacris triseriata maculata) at the Omaha Zoo.
  • Photo: Eurasian scops owl (Otus scops scops) at Alpenzoo in Innsbruck, Austria.
  • Photo: A Brahminy kite (Haliastur indus intermedius) at Negros Forest Park.
  • Photo: A common raven (Corvus corax clarionensis) at the Big Bear Alpine Zoo. This bird’s name is Gump.
  • A black wood turtle (Rhinoclemmys funerea) at the San Antonio Zoo.
  • Photo: Four red-throated twinspot or Peters's twinspot (Hypargos niveoguttatus) from a private collection in Choussy, France.
  • A Santa Rosa beach mouse (Peromyscus polionotus leucocephalus) at the USFWS office in Panama City, FL. This and several other beach mice subspecies are imperiled due to beach development. This species is also rare but is not currently listed under the ESA.
  • Photo: Spined loach or Lamprehuela (Cobitis calderoni) at the Environmental Education Center of the Ribeiras de Gaia.
  • Coyote puppies (Canis latrans).
  • Photo: Snail (Portugala inchoata) at Graham's Quinta dos Malvedos Vineyard.
  • Photo: A cryptic kelp crab (Pugettia richii) at California Science Center in Los Angeles, California.
  • A giant Malayan katydid (Macrolyristes corporalis) at the Omaha Henry Doorly Zoo, Omaha, Nebraska.
  • Photo: A Madagascar tree boa (Sanzinia volontany) at Prague Zoo.
  • Picture of orange-breasted waxbills (Amandava subflava) from a private collection.
  • Photo: Pearl Island boa constrictor, Boa constrictor sabogae, at Phoenix Zoo.
  • Photo: An electric catfish (Malapterurus electricus) at the Singapore Zoo.
  • A radiated ratsnake (Coelognathus radiatus) at the Columbus Zoo, Columbus, Ohio.
  • Picture of a double-eyed fig parrot (Cyclopsitta diophthalma) at the Dallas Zoo. The bird's name is Figley.
  • A Western plantain-eater (Crinifer piscator) at the Houston Zoo.
  • Photo: A antongil velvet gecko (Blaesodactylus antongilensis) at the Plzen Zoo in the Czech Republic.
  • Abbott's cockatoo (Cacatua sulphurea abbotti) at Loro Parque Fundacion.
  • Photo: Jamaican giant anole, Anolis garmani, at the Plzen Zoo.
  • Photo: Banded knifefish (Gymnotus carapo) at L'aquarium tropical du palais de la Porte DorŽe.
  • Photo: A pair of four-week-old old Asian leopard cats, (Prionailurus bengalensis bengalensis). These two were found abandoned by their mother a couple days ago in a burning field and brought to the Angkor Centre for Conservation of Biodiversity (ACCB), a wildlife rehab center in Siem Reap, Cambodia.
  • A hosue gecko (Hemidactylus mabouia) collected in Chitengo Camp, in Gorongosa National Park.
  • A saw-shelled turtle (Myuchelys latisternum) at the Australia Zoo Wildlife Hospital.
  • Toady rainfrog or rusty robber frog (Strabomantis or Craugastor bufoniformis), from Central America at Zoo Atlanta.
  • Photo: A horn coral (Hydnophora rigida) at the Akron Zoo.
  • A diamond python (Morelia spilota spilota) at the Gladys Porter Zoo in Brownsville, Texas.
  • Picture of a black oystercatcher (Haematopus bachmani) at the Monterey Bay Aquarium.
  • An Inca tern (Larosterna inca) at the Sedgwick County Zoo in Wichita, Kansas.
  • Picture of a rhinoceros hornbill (Buceros rhinoceros) at the Houston Zoo.
  • Photo: A red cracker butterfly (Hamadryas amphinome) at the Audubon Insectarium, part of the Audubon Nature Institute.
  • Photo: A female Montezuma swordtail (Xiphophorus montezumae) at L'aquarium tropical du palais de la Porte DorŽe.
  • Photo: Common raven (Corvus corax corax) at Lisbon Zoo.
  • Picture of an elegant tinamou (Eudromia elegans) at the Dallas World Aquarium.
  • Photo: Belize yellow headed amazon (Amazona oratrix beliziensis) at Loro Parque Fundacion.
  • Mexican dumpy treefrog (Pachymedusa dacnicolor) at the National Aquarium in Baltimore.
  • Photo: A Himalayan striped squirrel (Tamiops macclellandi) at Tierpark Berlin.
  • Fat tailed gerbil (Pachyuromys duprasi) at the Omaha Zoo.
  • Photo: A leaf-tailed gecko (Uroplatus henkeleli) at Omaha's Henry Doorly Zoo.
  • Photo: Noble macaw, Diopsittaca cumanensis cumanensis, at Loro Parque Fundacion.
  • Picture of a vulnerable spiny-tailed iguana (Ctenosaura hemilopha conspicuosa) at the St. Louis Zoo.
  • A marginated tortoise (Testudo marginata) at the Gladys Porter Zoo.
  • Picture of a Panamanian night monkey (Aotus zonalis) at the Nispero Zoo.
  • Picture of mountain galaxias (Galaxias olidus) at Healesville Sanctuary.
  • Photo: Emerald skink (Lamprolepis smaragdinus philippinensis) at Crocolandia in the Philippines.
  • White admiral butterfly (Limenitis arthemis) from a prairie woodland near Cross Lake, Minnesota.
  • Photo: An endangered storm's stork, Ciconia stormi, at Zoo Negara.
  • Photo: A Sumatran eagle-owl (Bubo sumatranus strepitans) at Taman Mini Indonesia Indah.
  • A critically endangered (IUCN) three-striped box turtle (Cuora trifasciata) at the Tennessee Aquarium.
  • Photo: An extinct in the wild (IUCN) Simandoa cave roach (Simandoa conserfariam) at the Bugarium at the Albuquerque BioPark.
  • An endangered (IUCN) flat-tailed tortoise (Pyxis planicauda) at Zoo Atlanta.
  • Picture of a four-spotted flounder (Paralichthys oblongus) at Gulf Specimen Marine Lab and Aquarium.
  • Picture of red footed sea cucumbers (Pentacta pygmaea) at Gulf Specimen Marine Lab and Aquarium.
  • Picture of two rough harvester ants (Pogonomyrmex rugosus) at Springs Preserve.
  • Picture of a male red-headed woodpecker (Melanerpes erythrocephalus) named 'Nigel' at St. Francis Wildlife Association, a wildlife rescue center near Quincy, Florida.
  • A marabou stork (Leptoptilos crumenifer) at the St. Augustine Alligator Farm.
  • A long-snouted robber frog (Pristimantis appendiculatus) near Mindo, Ecuador.
  • Photo: A vulnerable banded palm civet (Hemigalus derbyanus) named Yala at the Cincinnati Zoo. Yala means "go" in Arabic, the keepers said, which is appropriate because this creature moved like greased lighting.
  • Picture of an endangererd northern helmeted curassow (Pauxi pauxi) at the Dallas World Aquarium.
  • Picture of a black sea nettle (Chrysaora achlyos) at the Monterey Bay Aquarium.
  • Photo: A male South Caucasus pheasant (Phasianus colchicus colchicus) at the Plzen Zoo.
  • Photo: Senegal Mabuya (Trachylepis affinis) from Bioko Island in Equatorial New Guinea.
  • Photo: An Indonesian spitting cobra (Naja sputatrix) in Jakarta, Indonesia in the care of PT. Alam Nusantara Jayatama.
  • Photo: A common Monkey Lizard (Polychrus marmoratus) at the National Aquarium, Baltimore.
  • Picture of a green aracari (Pteroglossus viridis) at the Lowry Park Zoo.
  • Picture of an American avocet (Recurvirostra americana) at Tracy Aviary.
  • Photo: Selangor betta (Betta livida) at Zoo Negara.
  • Picture of a San Clemente Island fox (Urocyon littoralis clementae) at the Santa Barbara Zoo.
  • Photo: An unidentified damselfly at Cedar Point Biological Station.
  • Photo: Critically Endangered Bandula barb (Pethia bandula) at the Plzen Zoo. This is the Photo Ark's 9,000th species!
  • Picture of a four-horned chameleon (Chamaeleo quadricornis quadricornis) at the Saint Louis Zoo.
  • Picture of a warpaint shiner (Luxilus coccogenis) at the Virginia Aquarium.
  • Sun conure (Aratinga solstitialis) at the Bramble Park Zoo.
  • Photo: Golden perch (Macquaria ambigua) at the Freshwater Ecology and Marine Biology Dept. at Templestowe College.
  • A Colombian rainbow boa (Epicrates cenchria marus) at the Great Plains Zoo.
  • Photo: An upland burrowing crayfish (Cambarus cf. dubius) collected near Slade, Kentucky by the West Liberty University Crayfish Conservation Lab.
  • Photo: Honeypot ant (Myrmecocystus mexicanus) at the Bugarium at the Albuquerque BioPark.
  • Photo: Two emperor penguins (Aptenodytes forsteri) at SeaWorld San Diego.
  • Photo: Eight-lined Wrasse (Pseudocheilinus octotaenia) from Pure Aquariums.
  • Picture of a powder blue surgeonfish (Acanthurus leucosternon) at Omaha's Henry Doorly Zoo and Aquarium.
  • Budgett's frog (Lepidobatrachus laevis) at the Baltimore Aquarium.
  • Photo: Giant crab spider (Olios fasciculatus) at the Arizona-Sonora Desert Museum.
  • Picture of a cat ba cave gecko (Goniurosaurus catbaensis) at the St. Louis Zoo.
  • A northern flying squirrel (Glaucomys sabrinus) (three months old, male) at Wildlife Images, a rehabilitation center near Merlin, OR.
  • A green tree python (Morelia viridis) at the St. Louis Zoo.
  • Picture of a spot-crowned barbet (Capito maculicoronatus) at the Dallas World Aquarium.
  • Photo: White Sturgeon (Acipenser transmontanus) at the University of California, Davis.
  • Two Rowley's palm pit vipers (Bothriechis rowleyi) at the St. Louis Zoo, St. Louis, Missouri.
  • Photo: A silver carp (Hypophthalmichthys molitrix) at the Schramm Education Center near Gretna, NE.
  • Photo: An Indian roller (Coracias benghalensis affinis) at the Santa Barbara Zoo.
  • Photo: A long-eared owl (Asio otus otus) at Wildwood Trust near Canterbury, England.
  • A Western European hedgehog (Erinaceus europaeus) at Centro Fauna Selvatica “Il Pettirosso”.
  • A Bothrops alternatus (Urutu) at the Chattanooga Zoo.
  • Photo: Plain parakeet, Brotogeris tirica, at Loro Parque Fundacion.
  • Photo: A purple heron (Ardea purpurea manilensis) at the Plzen Zoo.
  • Picture of a Barnard's parakeet (Barnardius zonarius barnardi) at Pandemonium Aviaries in Los Altos Hills, California.
  • Picture of a chestnut-bellied sandgrouse (Pterocles exustus) at the Saint Louis Zoo.
  • Photo: An Algerian ribbed newt (Pleurodeles nebulosus) at Aquarium Berlin.
  • Picture of a western leopard gecko or Iranian fat-tailed gecko (Eublepharis angramainyu) at the Saint Louis Zoo.
  • A leaf beetle (Colaspis sp.) photographed at Spring Creek Prairie Audubon Center near Denton, NE. This animal was originally collected from Bobcat Prairie near Denton, NE.
  • A garden tree boa (Corallus hortulanus) at the Houston Zoo.
  • A Florida scrub lizard (Sceloporus woodi) from Cape Canaveral Florida.
  • Photo: A black-headed night monkey (Aotus nigriceps) at Fundacao Jardim Zoologico de Brasilia.
  • Photo: A guttural toad (Bufo gutturalis) a species commonly found in Gorongosa National Park.
  • Photo: Three common river frogs (Amietia angolensis) from Gorongosa National Park.
  • Photo: White-rumped vulture (Gyps bengalensis) at Kamla Nehru Zoological Garden, Ahmedabad, India.
  • Photo: An oriental pied hornbill (Anthracoceros albirostris) at the Assam State Zoo in Guwahati, Assam, India.
  • Photo: Pacific boa (Candoia carinata) at the Wroclaw Zoo.
  • A kinkajou (Potos flavus) at the NYS Zoo. This animal is native to Central and South America.
  • Photo: A critically endangered Pilaló tree frog, (Hyloscirtus ptychodactylus) at Balsa de los Sapos.
  • Picture of a great blue heron (Ardea herodias occidentalis) at the National Aviary breeding center.
  • A Magellanic penguin (Spheniscus magellanicus) at the Cincinnati Zoo.
  • Picture of a Hahn's red-shouldered macaw (Diopsittaca nobilis nobilis) at the Audubon Zoo in New Orleans.
  • Photo: A New Guinea bronzewing (Henicophaps albifrons) at Ragunan Zoo in Jakarta, Indonesia.
  • A blue spotted tree monitor (Varanus macraei) at the Gladys Porter Zoo in Brownsville, Texas.
  • A millipede (Diplopoda sp.).
  • Photo: A Magellanic owl (Bubo magellanicus) at the Santiago Zoo in Chile.
  • Photo: Blue mahseer (Neolissochilus stracheyi) at Zoo Negara.
  • Photo: A male scarlet tanager (Piranga olivacea) at the Wildlife Rehab Center of Minnesota.
  • Picture of a lesser snow goose (Chen caerulescens caerulescens).
  • An endangered (IUCN) and federally endangered Alabama red-bellied turtle (Pseudemys alabamensis) at the Tennesee Aquarium.
  • Picture of a smooth stick insect (Clitarchus hookeri) at the Auckland Zoo.
  • Photo: Moderlieschen (Leucaspius delineatus) at Alpenzoo in Innsbruck, Austria.
  • Photo: Bark scorpion (Centruroides margaritatus) at the Moscow Zoo.
  • Photo: A skink at the Houston Zoo.
  • Photo: A Sumatran slow loris (Nycticebus coucang) at Jakarta Natural Resource Conservation Center in Indonesia.
  • Photo: A Ganzhorn’s mouse-lemur (Microcebus ganzhorni) at the Plzen Zoo in the Czech Republic.
  • A critically endangered (IUCN) and federally endangered Cuban crocodile (Crocodylus rhombifer).
  • A common checkered-skipper (Pyrgus communis).
  • Picture of a vulnerable (IUCN) and federally endangered western tragopan (Tragopan melanocephalus) at the Himalayan Nature Park in Kufri India.
  • Photo: A grey-headed kite (Leptodon cayanensis monachus) at BioParque do Rio.
  • Photo: An endangered interrupted rocksnail (Leptoxis foreman) at the Alabama Aquatic Biodiversity Center in Marion, Alabama.
  • Monarch butterflies (Danaus plexippus) from Sierra Chincua, Mexico.
  • Photo: Cruiser (Vindula arsinoe) at Melbourne Zoo. This is a female.
  • Photo: Sheltopusik (a type of legless lizard),Ophisaurus apodus, at the Sedgwick County Zoo.
  • Photo: A tawny-browed owl (Pulsatrix koeniswaldiana) at BioParque do Rio.
  • A Florida brown snake (Storeria dekayi victa) at the Archbold Biological Station.
  • A barn swallow (Hirundo rustica) at Iowa Bird Rehabilitation.
  • Photo: An endangered White-winged Duck (Asarcornis scutulata) at the Angkor Centre for Conservation of Biodiversity (ACCB) in Siem Reap, Cambodia.
  • Photo: An Anthony's poison arrow frog (Epipedobates anthonyi) at Balsa de los Sapos.
  • A vulnerable blue crowned pigeon (Goura cristata) at Omaha's Henry Doorly Zoo and Aquarium, Omaha, Nebraska.
  • Photo: A yellow finger sponge (Haliclonia viridis) at Gulf Specimen in Panacea, Florida.
  • Limon giant glass frog (Sachatamia ilex) at Zoo Atlanta.
  • Photo: A pair of spotted rocksnails (Leptoxis picta) at the Alabama Aquatic Biodiversity Center in Marion, Alabama.
  • An endangered Romer's tree frog (Liuixalus romeri) at Ocean Park in Hong Kong.
  • Photo: Ferruginous pygmy owl (Glaucidium brasilianum) at the National Aviary of Colombia.
  • An old world harvest mouse (Micromys minutus) at the Omaha Zoo.
  • Photo: A redback spider (Latrodectus hasselti) at the Taronga Zoo.
  • Picture of a critically endangered (IUCN) and federally endangered Siberian crane (Grus leucogeranus) at the Tulsa Zoo.
  • Picture of a diadem dottyback (Pictichromis diadema) at Pure Aquariums.
  • A vulnerable (IUCN) and federally endangered clouded leopard (Neofelis nebulosa nebulosa) at the Houston Zoo.
  • Photo: Common palm civet (Paradoxurus hermaphroditus) at the Assam State Zoo in Guwahati, Assam, India.
  • Photo: A Peale's peregrine falcon (Falco peregrinus pealei) at Reptile Gardens.
  • Picture of a bird poop frog (Theloderma asperum) at the St. Louis Zoo.
  • A Yucatan road guarder (Conophis lineatus concolor) at the Chapultepec Zoo, Mexico City, Mexico.
  • Photo: A Stella's lorikeet (Charmosyna papou) at a private collection in Jakarta, Indonesia.
  • Picture of a greater fruit-eating bat (Artibeus lituratus) at the Lubee Bat Conservancy in Gainesville, Florida.
  • Photo: Greater blue-eared starling (Lamprotornis chalybaeus) in Choussy, France.
  • A California murre (Uria aalge californicus) egg from a collection at the University of Nebraska State Museum.
  • Photo: A plains spadefoot toad (Spea bombifrons) at UNL.
  • Photo: New Granada cross-banded tree frog or masked tree frog (Smilisca phaeota) at the El Valle Amphibian Conservation Center (EVACC).
  • Photo: Veterinarian bottle feeding two female hand-raised nine-day-old clouded leopard cubs, Neofelis nebulosa, at the Nashville Zoo.
  • Photo: A female Venezuelan red howler monkey (Alouatta seniculus juara) at Mantenedor da Fauna Silvestre Cariuá.
  • Photo: A five-day-old Chiriqui white-tailed deer fawn (Odocoileus virginianus chiriquensis) at the Summit Municipal Park in Gamboa, Panama.
  • Picture of a candy wrasse (Pseudojuloides cerasinus) at Omaha's Henry Doorly Zoo and Aquarium.
  • Photo: A tarantula (Selenocosmia kovariki) from a private collection.
  • Photo: An endangered Ruivaco-do-oeste, Achondrostoma occidentale, a rare freshwater fish at the Vasco da Gama Aquarium.
  • Photo: A blossom headed parakeet (Psittacula roseata roseata) at Loro Parque Fundacion.
  • Orange-winged Amazon (Amazona amazonica amazonica) at Cafam Zoo
  • A sturgeon chub (Macrhybopsis gelida).
  • Picture of a Northwestern lettered aracari (Pteroglossus inscriptus humbolti) at the Dallas World Aquarium.
  • Photo: Warty glow spot cockroach (Lucihormetica verrucosa) at the Budapest Zoo.
  • Mallard (Anas platyrhynchos) ducklings.
  • Picture of an opal-rumped tanager (Tangara velia) at the Houston Zoo.
  • Photo: Bluntnose minnow (Pimephales notatus) collected from Big Darby Creek near Circleville, OH.
  • A yellow and blue poison dart frog or dyeing poison dart frog (Dendrobates tinctorius) at the Rolling Hills zoo.
  • Photo: Prairie kingsnake (Lampropeltis calligaster calligaster) collected in Pawnee County, Nebraska.
  • Photo: An orangetail shiner (Pteronotropis merlini) from a private collection in Knoxville, Tennessee.
  • Photo: A female pink-winged stick insect (Sipyloidea sipylus) at the Moscow Zoo.
  • Photo: A pair of Soemmerring’s copper pheasants (Syrmaticus soemmerringii soemmerringii) from a private collection.
  • Photo: An azure jay (Cyanocorax coeruleus) at BioParque do Rio.
  • Photo: A conception toad (Rhinella arunco) at the Santiago Zoo in Chile.
  • Western scrub-jay (Aphelocoma californica) 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: Polleni cichlid or black diamond cichlid (Paratilapia polleni) at L'aquarium tropical du palais de la Porte DorŽe. This species is listed as vulnerable by IUCN.
  • Photo: A red slate pencil urchin (Heterocentrotus mamillatus) at the Oklahoma City Zoo.
  • Photo: Blue bellied parrots, Triclaria malachitacea, at Loro Parque Fundacion.
  • Photo: Little cormorant (Phalacrocorax niger) at Kamla Nehru Zoological Garden, Ahmedabad, India.
  • Photo: A grunt sculpin (Rhamphocottus richardsonii) at the Alaska SeaLife Center.
  • Photo: Green-bordered ground beetle (Pasimachus viridans) at the Bugarium at the Albuquerque BioPark.
  • Picture of a vulnerable binturong (Arctictis binturong) at the Great Bend Brit Spaugh Zoo.
  • Photo: A giant kelpfish (Heterostichus rostratus) at California Science Center in Los Angeles, California.
  • Picture of a Western gull (Larus occidentalis) at the Santa Barbara Wildlife Care Network.
  • Photo: A juvenile humpback unicornfish (Naso brachycentron) at Loro Parque's aquarium in Puerto de la Cruz, Tenerife, Spain
  • Jade gliding frog (Rhacophorus prominanus) at the Houston Zoo.
  • Photo: A red tree frog (Leptopelis rufus) collected near Manjo, Cameroon.
  • A broadwing hawk (Buteo platypterus).
  • Photo: Madagascar buzzard (Buteo brachypterus) at PBZT, the Parc Botanique Et Zoologique de Tsimbazaza.
  • A red-legged brown dart frog (Silverstoneia flotator). The photo was taken at the National Aquarium in Baltimore.
  • Photo: A red-necked francolin (Pternistis afer) at Safari Park Dvur Kralove.
  • Picture of a black-breasted buzzard (Hamirostra melanosternon) at the Healesville Sanctuary.
  • Photo: A Swinhoe’s striped squirrel (Tamiops swinhoei) Shaldon Wildlife Trust in Shaldon, England.
  • A vulnerable female Rio Grande wild turkey (Meleagris gallopavo intermedia) named Katie.
  • Photo: Spiked-top apple snail or mystery snail (Pomacea bridgesii) at Butterfly Pavilion.
  • Picture of an eastern meadowlark (Sturnella magna) from Kissimmee Prairie Preserve State Park.
  • Photo: A golden orb weaver (Argiope amoena) at the University of the Philippines.
  • A Brazilian rainbow boa (Epicrates c. cenchria) at the Kansas City Zoo.
  • A vulnerable (IUCN) and federally threatened gopher tortoise (Gopherus polyphemus). This animal is federally listed as threatened from west of Mobile Bay, Alabama throughout southern Mississippi, and into eastern Louisiana.
  • Photo: Philippine hanging parrot (Loriculus philippensis philippensis) at Loro Parque Fundacion.
  • A foam nesting frog (Chiromantis xerampelina) at the Phoenix Zoo.
  • Photo: A bee-like robber fly (Laphria species) from the wild at Bobcat Prairie near Denton, NE. This robber fly mimics a bumblebee as a way to hunt other insects.
  • An African giant plated lizard (Gerrhosaurus validus) at the Houston Zoo.
  • Picture of a female Bewick's swan, Cygnus columbianus bewickii, at Sylvan Heights Bird Park.
  • Photo: Pygmy mulga monitor (Varanus gilleni) at Lilydale High School in Australia.
  • Photo: Ets crayfish, Faxonius etnieri, at the Crayfish lab in West Liberty University in West Liberty, WV. This specimen is from the North Fork of Forked Deer River, Dyersburg, TN.
  • Picture of a white-cheeked pintail (Anas bahamensis) at Sylvan Heights Bird Park.
  • Photo: Pink octocoral (Telesto sanguinea) from Gulf Specimen Marine Laboratories.
  • Picture of a Cuban slider (Trachemys decussata) at the National Botanical Garden in Santo Domingo, Dominican Republic.
  • Photo: A common house cricket (Acheta domestica).
  • Photo: A Roque treefrog (Hyloscirctus phyllognathus) from Limon, Ecuador.
  • Photo: A critically endangered (IUCN) and federally endangered female eastern black rhino (Diceros bicornis michaeli) named Imara at the Great Plains Zoo.
  • A critically endangered Chinese alligator (Alligator sinensis) at the Fresno Chaffe Zoo.
  • Photo: A crumb of bread sponge (Halichondria corrugata) at Gulf Specimen in Panacea, Florida.
  • Three Eastern Grass Owls (Tyto longimembris chinensis) at Angkor Centre for Conservation of Biodiversity (ACCB) in Cambodia.
  • Photo: Brown color phase of a female Usambara three-horned chameleon (Trioceros deremensis) from a private collection.
  • Ouachita madtoms (Noturus lachneri) at Conservation Fisheries, a native stream fish breeding center in Knoxville. This is a rare stream fish that has a limited range in Arkansas and is listed as endangered on the IUCN Red List, but it still isn’t listed under the ESA.
  • Photo: Amargosa speckled dace (Rhinichthys osculus nevadensis) collected on the Amargosa River in Tecopa, California.
  • Photo: A lightfoot snail (Lithopoma tectum) at Riverbanks Zoo and Garden.
  • Picture of a western Atlantic harbor or common seal (Phoca vitulina concolor) at the Buttonwood Park Zoo in New Bedford, Massachusetts.
  • Picture of green-cheeked parakeets (Pyrrhura molinae sordida) from a private collection.
  • Three Eastern Grass Owls (Tyto longimembris chinensis) at Angkor Centre for Conservation of Biodiversity (ACCB) in Cambodia.
  • Photo: A flier (Centrarchus macropterus) at the Medicine Park Aquarium and Natural Sciences Center in Medicine Park, OK.
  • Photo: Ash Meadows speckled dace (Rhinichthys osculus nevadensis) at Ash Meadows National Wildlife Refuge near Pahrump, NV.
  • Photo: An Amazon slender leg tarantula (Maraca horrida) from a private collection.
  • Picture of an endangered (IUCN) and federally endangered black-footed ferret (Mustela nigripes) at the Cheyenne Mountain Zoo.
  • A giant panda (Ailuropoda melanoleuca) at Zoo Atlanta. This endangered (IUCN) and federally endangered species is native to China.
  • Photo: A banded leporinus (Leporinus fasciatus) at the Oklahoma City Zoo.
  • Picture of an Auckland tree weta (Hemideina thoracica) at the Auckland Zoo.
  • Mallard (Anas platyrhynchos) ducklings.
  • Schneider's skink (Eumeces schneideri schneideri) at Scaly Dave's Herp Shack.
  • Picture of a spotted paca (Cuniculus paca) at the Omaha Henry Doorly Zoo.
  • Colombian green jay or Inca jay (Cyanocorax yncas) at Parque Jaime Duque near Bogota, Colombia.
  • Photo: A San Joaquin kit fox (Vulpes macrotis mutica) at the Big Bear Alpine Zoo. This animal is named "Kit Kat”. This species is federally endangered.
  • Photo: Eastern great cormorant (Phalacrocorax carbo sinensis) at the Budapest Zoo.
  • Photo: A bighead carp (Hypophthalmichthys nobilis) at the Schramm Education Center near Gretna, NE.
  • Photo: A critically endangered Diademed sifaka (Propithecus diadema) at Lemuria Land in Madagascar.
  • An endangered (IUCN) and federally endangered snow leopard (Panthera uncia) at the Miller Park Zoo.
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