Chordata

Acanthurus achilles (Achilles Tang)

Illustration of Achilles Tang (Acanthurus Achilles)

Acanthurus lineatus (Striped Surgeon Fish)

Illustration of a Striped Surgeon Fish (Acanthurus Lineatus)

Acanthurus nigrofuscus (Brown Surgeonfish)

Illustration of a Brown Surgeonfish (Acanthurus Nigrofuscus)

Acanthurus triostegus (Convict Tang)

Illustration of Convict Tang (Acanthurus Triostegus)

Acipenser oxyrinchus (Atlantic Sturgeon)

Illustration of Acipenser oxyrinchus (Atlantic Sturgeon)

Acridotheres tristis (Common Myna)

Illustration of Acridotheres tristis (Common Myna), which is an invasive pest in South Africa, North America, the Middle East, Australia, New Zealand and many Pacific islands as it out-competes native hollow-nesting bird species

Aegolius acadicus (Northern Saw-whet Owl)

Illustration of Aegolius acadicus (Northern Saw-whet Owl)

Agelaius phoeniceus (Red-winged Blackbird)

Illustration of Agelaius phoeniceus (Red-winged Blackbird)

Ailuropoda melanoleuca (Panda)

Illustration of Ailuropoda melanoleuca (Panda)

Alces alces (Moose)

Illustration of Alces alces (Moose)

Aldrichetta forsteri (Yellow-eye Mullet)

Illustration of Aldrichetta forsteri (Yellow-eye Mullet)

Alligator mississippiensis (American Alligator)

Illustration of Alligator mississippiensis (American Alligator)

Alosa aestivalis (Blueback Herring)

Illustration of Alosa aestivalis (Blueback Herring)

Alosa mediocris (Hickory Shad)

Illustration of Alosa mediocris (Hickory Shad)

Alosa pseudoharengus (Alewife)

Illustration of Alosa pseudoharengus (Alewife)

Alosa sapidissima (American Shad)

Illustration of Alosa sapidissima (American Shad)

Ambystoma maculatum (Spotted Salamander)

Illustration of Ambystoma maculatum (Spotted Salamander)

Ammodramus maritimus (Seaside Sparrow)

A side view of a Seaside Sparrow

Ammodramus nelsoni (Nelson's Sparrow)

A side view of a Nelson's Sparrow. Nelson's sparrow and the saltmarsh sparrow were considered to be a single species, the sharp-tailed sparrow; because of this it was briefly known as Nelson's sharp-tailed sparrow

Ammodytes dubius (Northern Sand Lance)

Illustration of Ammodytes dubius (Northern Sand Lance)

Amniataba caudavittata (Yellowtail trumpeter)

Illustration of Amniataba caudavittata (Yellowtail trumpeter)

Amphiprion spp. (Clownfish)

Illustration of Amphiprion spp. (Clownfish)

Anas penelope (Eurasian Wigeon)

Illustration of Anas penelope (Eurasian Wigeon)

Anas platyrhynchos (Mallard Duck)

Illustration of Anas platyrhynchos (Mallard Duck)

Anas rubripes (American Black Duck)

Illustration of Anas rubripes (American Black Duck)

Anchoa mitchilli (Bay Anchovy)

Illustration of Anchoa mitchilli (Bay Anchovy)

Anchoa mitchilli (Bay Anchovy) : juvenile

Illustration of Anchoa mitchilli (Bay Anchovy) juvenile

Anguilla rostrata (American Eel)

Illustration of Anguilla rostrata (American Eel)

Anguilla rostrata (American Eel) : elver

Illustration of Anguilla rostrata (American Eel) elver

Anguilla rostrata (American Eel) : glass eel

Illustration of Anguilla rostrata (American Eel) glass eel

Anguilla rostrata (American Eel) : leptocephalus

Illustration of Anguilla rostrata (American Eel) leptocephalus

Anguilla rostrata (American Eel) : silver

Illustration of Anguilla rostrata (American Eel) : silver

Anguilla rostrata (American Eel) : yellow

Illustration of Anguilla rostrata (American Eel) : yellow

Anseranas semipalmata (Magpie Goose) 1

Illustration of Anseranas semipalmata (Magpie Goose)

Anseranas semipalmata (Magpie Goose) 2

A waterbird species found in coastal northern Australia. The adult Magpie goose has black and white feathers, a long neck and a cranial knob (smaller in females). They also have orange legs with partly webbed feet, and a red beak with a white hook on the end which assists them in probing for food. The Northern Territory holds the largest populations and breeding areas of the Magpie goose with an estimated population of over 2 million individuals

Antilocapra americana (Pronghorn deer)

Side view of male pronghorn

Antilope cervicapra (Blackbuck Antelope)

Illustration of Antilope cervicapra (Blackbuck Antelope)

Anura (Frog) lifecycle: day 01 egg

Illustration of Anura (Frog) lifecycle: day 01 egg

Anura (Frog) lifecycle: day 03-04 tailbud

Illustration of Anura (Frog) lifecycle: day 03-04 tailbud

Anura (Frog) lifecycle: day 06 tadpole with external gills

Illustration of Anura (Frog) lifecycle: day 06 tadpole with external gills

Anura (Frog) lifecycle: day 09 tadpole with internal gills

Illustration of Anura (Frog) lifecycle: day 09 tadpole with internal gills

Anura (Frog) lifecycle: day 12 tadpole with operculum

Illustration of Anura (Frog) lifecycle: day 12 tadpole with operculum

Anura (Frog) lifecycle: day 70 tadpole with hindlimbs

Illustration of Anura (Frog) lifecycle: day 70 tadpole with hindlimbs

Anura (Frog) lifecycle: day 84 tadpole with forelimbs

Illustration of Anura (Frog) lifecycle: day 84 tadpole with forelimbs

Anura (Frog) lifecycle: day 84+ tadpole metamorphosis

Illustration of Anura (Frog) lifecycle: day 84+ tadpole metamorphosis

Anura (Frog) lifecycle: day 84+ young frog

Illustration of Anura (Frog) lifecycle: day 84+ young frog

Apolemichthy trimaculatus (Flagfin Angelfish)

Illustration of Flagfin Angelfish (Apolemichthy Trimaculatus)

Aptenodytes forsteri (Emperor Penguin)

Illustration of Aptenodytes forsteri (Emperor Penguin)

Arctocephalus pusillus (Brown Fur Seal)

Illustration of Arctocephalus pusillus (Brown Fur Seal)

Arctogadus glacialis (Arctic Cod)

Illustration of Arctogadus glacialis (Arctic Cod)

Ardea Herodias (Great Blue Heron)

Illustration of Ardea Herodias (Great Blue Heron)

Ardea herodias (Great Blue Heron) 2

Great Blue Heron flying

Argyrosomus spp. (Mulloway)

Illustration of Argyrosomus spp. (Mulloway)

Arius graeffei (Fork-tailed Catfish)

Illustration of Arius graeffei (Fork-tailed Catfish)

Arrhamphus sclerolepis (Snub-nosed Garfish)

Illustration of Arrhamphus sclerolepis (Snub-nosed Garfish)

Arripis georgianus (Australian Herring)

Illustration of Arripis georgianus (Australian Herring)

Atherinomorus duodecimalis (Tropical silverside)

Illustration of Atherinomorus duodecimalis (Tropical silverside)

Bairdiella chrysoura (American Silver Perch)

Illustration of Bairdiella chrysoura (American Silver Perch)

Balaena mysticetus (Bowhead Whale)

Illustration of Balaena mysticetus (Bowhead Whale)

Balaenoptera borealis (Sei Whale)

Illustration of Balaenoptera borealis (Sei Whale)

Balistapus undulatus (Orange-lined Triggerfish)

Illustration of Balistapus undulatus (Orange-lined Triggerfish)

Balistes capriscus (Gray Triggerfish)

Balistes capriscus (Gray Triggerfish)

Belone belone (Garfish)

Illustration of Belone belone (Garfish)

Bidyanus bidyanus (Silver Perch)

Illustration of Bidyanus bidyanus (Silver Perch)

Bison bison (American Bison)

Illustration of Bison bison (American Bison)

Bolbometopon muricatum (Green Humphead Parrotfish)

Illustration of Bolbometopon muricatum (Green Humphead Parrotfish)

Bos taurus (Bull)

Illustration of Bos taurus (Bull)

Bos taurus (Cow) : from above 1

Illustration of Bos taurus (Cow) from above

Bos taurus (Cow) : from above 2

Illustration of Bos taurus (Cow) from above

Bos taurus (Cow) : from above 3

Illustration of Bos taurus (Cow) from above 3

Bos taurus (Cow) 1

Illustration of Bos taurus (Cow)

Bos taurus (Cow) 2

Illustration of Bos taurus (Cow)

Bos taurus (Cow) 3

Illustration of Bos taurus (Cow)

Bos taurus (Cow) 4

Illustration of Bos taurus (Cow)

Bos taurus (Cow) 5

Illustration of Bos taurus (Cow)

Bos taurus (Cow) 6

Illustration of Bos taurus (Cow)

Bos taurus (Cow) 7

Illustration of Bos taurus (Cow)

Bos taurus (Hereford Steer)

Illustration of Bos taurus (Hereford Steer)

Bos taurus (Longhorn Steer)

Illustration of Bos taurus (Longhorn Steer)

Brachionichthys hirsutus (Spotted Handfish)

Illustration of Brachionichthys hirsutus (Spotted Handfish)

Branta bernicla (Atlantic Brant Goose)

Illustration of Branta bernicla (Atlantic Brant Goose)

Branta canadensis (Canada Goose)

Illustration of Branta canadensis (Canada Goose)

Brevoortia tyrannus (Atlantic Menhaden)

Illustration of Brevoortia tyrannus (Atlantic Menhaden)

Brevoortia tyrannus (Atlantic Menhaden) : juvenile

Illustration of Brevoortia tyrannus (Atlantic Menhaden) juvenile

Bufo americanus (American Toad) : adult

Illustration of Bufo americanus (American Toad) adult

Buteo lineatus (Red-shouldered Hawk)

Illustration of Buteo lineatus (Red-shouldered Hawk)

Buteo rufinus (Long-legged Buzzard)

Illustration of Buteo rufinus (Long-legged Buzzard)

Calidris ferruginea (Curlew Sandpiper)

Illustration of Calidris ferruginea (Curlew Sandpiper)

Calidris spp. (Sandpiper)

Illustration of Calidris spp. (Sandpiper)

Camelus dromedarius (Arabian Camel)

Illustration of Camelus dromedarius (Arabian Camel)

Canis latrans (Coyote)

Illustration of Canis latrans (Coyote)

Canis lupis familiaris (Dog)

Illustration of Canis lupis familiaris (Dog)

Canis lupis familiaris (Dog) : feces

Illustration of Canis lupis familiaris (Dog) feces

Capra aegagrus hircus (Goat)

Illustration of Capra aegagrus hircus (Goat)

Caranx ignobilis (Giant Trevally)

Illustration of Caranx ignobilis (Giant Trevally)

Carcharhinus leucas (Bull Shark) 1

Illustration of Carcharhinus leucas (Bull Shark)

Carcharhinus leucas (Bull Shark) 2

Illustration of Carcharhinus leucas (Bull Shark) side view

Carcharhinus melanopterus (Blacktip Reef Shark)

Illustration of Carcharhinus melanopterus (Blacktip Reef Shark)

Carcharhinus plumbeus (Sandbar Shark)

Illustration of Carcharhinus plumbeus (Sandbar Shark)

Cardinalis cardinalis (Northern Cardinal)

Illustration of Cardinalis cardinalis (Northern Cardinal)

Caretta caretta (Loggerhead Turtle)

Illustration of an adult Loggerhead turtle

Caretta caretta (Loggerhead Turtle) : hatchling

Illustration of a Loggerhead turtle hatchling

Castor canadensis (North American Beaver)

Illustration of Castor canadensis (North American Beaver)

Castor canadensis (North American Beaver) : dam

Illustration of a beaver dam

Castor canadensis (North American Beaver) : hut

Illustration of a beaver hut

Casuarius spp. (Cassowary)

Illustration of Casuarius spp. (Cassowary)

Catharus bicknelli (Bicknell's Thrush)

Illustration of Catharus bicknelli (Bicknell's Thrush)

Centrocercus spp. (Sage Grouse)

Illustration of Centrocercus spp. (Sage Grouse)

Centropomus undecimalis (Common Snook)

The common snook (Centropomus undecimalis) is a species of marine fish in the family Centropomidae of the order Perciformes. The common snook is also known as the sergeant fish or robalo

Centropristis striata (Black Sea Bass)

Illustration of Centropristis striata (Black Sea Bass)

Cephalopholis argus (Blue-spotted Grouper)

Side view illustration of an adult Blue-spotted Grouper. The blue-spotted grouper was introduced to the Hawaiian islands from Moorea, French Polynesia in the late 1950s in an attempt to establish a grouper fishery in Hawaii

Cephalopholis miniata (Vermillion Sea Bass)

Illustration of Cephalopholis miniata (Vermillion Sea Bass)

Cervus elaphus (Red Deer) : buck

Illustration of Cervus elaphus (Red Deer) buck

Cervus elaphus (Red Deer) : doe

Illustration of Cervus elaphus (Red Deer) doe

Cervus nippon (Sika Deer) : buck

Illustration of Cervus nippon (Sika Deer) buck

Cervus nippon (Sika Deer) : doe

Illustration of Cervus nippon (Sika Deer) doe

Chaetodipus hispidus (Hispid Pocket Mouse)

Illustration of Chaetodipus hispidus (Hispid Pocket Mouse)

Chaetodon lineolatus (Lined Butterflyfish)

Illustration of Chaetodon lineolatus (Lined Butterflyfish)

Chanos chanos (Milkfish) 1

Illustration of Chanos chanos (Milkfish)

Chanos chanos (Milkfish) 2

Illustration of Chanos chanos (Milkfish)

Charadrius alexandrinus (Snowy Plover)

Illustration of Charadrius alexandrinus (Snowy Plover)

Charadrius melodus (Piping Plover) 1

Illustration of Charadrius melodus (Piping Plover)

Charadrius melodus (Piping Plover) 2

Illustration of Charadrius melodus (Piping Plover) 2

Charadrius montanus (Mountain Plover)

Illustration of Charadrius montanus (Mountain Plover)

Chasmodes bosquianus (Striped Blenny)

Illustration of Chasmodes bosquianus (Striped Blenny)

Cheilinus spp. 1

Illustration of Cheilinus spp

Cheilinus spp. 2

Illustration of Cheilinus spp

Cheilinus undulatus (Humphead Wrasse) : female

Female Cheilinus undulatus (Humphead Wrasse)

Cheilinus undulatus (Humphead Wrasse) : male

Illustration of a male Cheilinus undulatus (Humphead Wrasse)

Chelodina oblonga (Oblong Turtle)

Illustration of Chelodina oblonga (Oblong Turtle)

Chelydra serpentina (Snapping Turtle)

Illustration of a snapping turtle

Chitala ornata (Clown knifefish)

The species, also known commonly as a clown featherback fish, occurs in Thailand, Lao PDR, Viet Nam, and Cambodia. It has been introduced to Myanmar and the Philippines for aquaculture. Juveniles are popular in the aquarium trade and large fish are popular for public aquaria. In some parts of the Philippines, its introduction is wreaking havoc on the local fishing industry

Chloroscombrus chrysurus (Atlantic Bumper)

The Atlantic Bumper is a game fish found from Massachusetts to Florida in the Western Atlantic Ocean. They eat smaller fish, cephalopods, and zooplankton

Chlorurus spilurus (Bullethead Parrotfish)

Illustration of a Bullethead Parrotfish (Chlorurus Spilurus)

Chromis chromis (Mediterranean Chromis)

Illustration of Chromis chromis (Mediterranean Chromis)

Chrysemys picta (Painted Turtle)

Illustration of Chrysemys picta (Painted Turtle)

Cnidoglanis macrocephalus (Cobbler)

Illustration of Cnidoglanis macrocephalus (Cobbler)

Coccyzus minor (Mangrove Cuckoo)

Illustration of Coccyzus minor (Mangrove Cuckoo)

Columba livia (Rock Pigeon)

Illustration of Columba livia (Rock Pigeon)

Coregonus spp. (Cisco)

Side view of adult Coregonus spp

Coris julis (Mediterranean Rainbow Wrasse)

Illustration of Coris julis (Mediterranean Rainbow Wrasse)

Crocodylus acutus (American Crocodile)

Illustration of Crocodylus acutus (American Crocodile)

Crotalus spp. (Rattle Snake)

Illustration of Crotalus spp. (Rattlesnake) venomous pitvipers found only in the Americas from southern Canada to northern Argentina. The name is derived from the Greek word krotalon, which means "rattle" or "castanet", and refers to the rattle on the end of the tail that make this group so distinctive

Crotalus viridis cereberus (Arizona Black Rattlesnake)

Illustration of Crotalus viridis cereberus (Arizona Black Rattlesnake)

Cygnus atratus (Black Swan)

Illustration of Cygnus atratus (Black Swan)

Cygnus buccinator (Trumpeter Swan)

Illustration of Cygnus buccinator (Trumpeter Swan)

Cygnus olor (Mute Swan) 1

Illustration of Cygnus olor (Mute Swan)

Cygnus olor (Mute Swan) 2

Illustration of Cygnus olor (Mute Swan) 2

Cygnus olor (Mute Swan) 3

Illustration of Cygnus olor (Mute Swan) 3

Cynomys spp. (Prairie Dog)

Illustration of Cynomys spp. (Prairie Dog)

Cynoscion nebulosus (Spotted Seatrout)

Illustration of Cynoscion nebulosus (Spotted Seatrout)

Cynoscion regalis (Weakfish)

Illustration of Cynoscion regalis (Weakfish)

Cyprinus carpio (Common Carp)

Illustration of Cyprinus carpio (Common Carp)

Cypselurus callopterus (Ornamented Flying Fish)

Flying fish can make powerful, self-propelled leaps out of water into air, where their long, wing-like fins enable gliding flight for considerable distances above the water's surface. This uncommon ability is a natural defense mechanism to evade predators

Dacelo novaeguineae (Laughing Kookaburra)

Illustration of Dacelo novaeguineae (Laughing Kookaburra)

Dascyllus aruanus (Whitetail dascyllus)

Illustration of a Whitetail dascyllus (Dascyllus aruanus)

Dasyatis americana (Southern Stingray) 1

Illustration of Dasyatis americana (Southern Stingray)

Dasyatis americana (Southern Stingray) 2

Birds eye view of a southern stingray, created by science communication course student Tori Agnew

Dead bird

Illustration of dead bird

Dendrobates pumilio (Dart-poison Frog) : adult

Illustration of Dendrobates pumilio (Dart-poison Frog) adult

Dendroica cerulea (Cerulean Warbler)

Illustration of a Cerulean Warbler (Dendroica Cerulea)

Dendroica discolor (Prairie Warbler)

Illustration of Dendroica discolor (Prairie Warbler)

Dendroica petechia (Yellow Warbler)

Illustration of Dendroica petechia (Yellow Warbler)

Dermochelys coriacea (Leatherback Turtle)

Illustration of a Leatherback turtle

Dermochelys coriacea (Leatherback Turtle) : hatchling

Illustration of a Dermochelys coriacea (Leatherback Turtle) hatchling