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- CacatuaGenus of birds
- CacholoteGenus of birds
- Cacique (bird)Passerine birds in the New World blackbird family
- CacomantisGenus of birds
- CacomistleSpecies of carnivore
- Cactus wrenSpecies of bird found in North America
- CaddisflyOrder of insects
- CaeliferaSuborder of insects
- CaenagnathasiaCaenagnathasia ('recent jaw from Asia') is a small caenagnathid oviraptorosaurian theropod
- CaenagnathidaeExtinct family of dinosaurs
- CaenagnathoideaCaenagnathoidea ("recent jaw forms") is a group of advanced oviraptorosaurian dinosaurs fr
- CaenogastropodaClade of sea snails
- CainotheriidaeExtinct family of mammals
- CaiqueSpecies of bird
- Calabrian black squirrelSpecies of rodent
- CalamanthusGenus of birds
- CalandrellaGenus of birds
- Calcareous spongeClass of marine sponges of the phylum Porifera which have spicules of calcium carbonate
- CalcariidaeFamily of birds
- CalendulaudaGenus of birds
- California condorSpecies of large New World vulture
- California grizzly bearExtinct population of the brown bear
- California quailSpecies of ground-dwelling bird
- California scrub jaySpecies of bird in the crow family
- California sea lionSpecies of carnivore
- CallaeidaeFamily of birds
- Callinectes sapidusSpecies of crustacean
- Calliope (genus)Genus of birds
- Calliphora lividaSpecies of fly
- Calliphora vicinaSpecies of insect
- Calliphora vomitoriaSpecies of fly
- Calliptamus italicusSpecies of grasshopper
- CallitrichidaeFamily of New World monkeys
- CallorhinchusGenus of cartilaginous fishes
- CallosciurusGenus of "beautiful" squirrels from Asia
- CallovianFourth and last age of the middle Jurassic
- CallyspongiaCallyspongia is a genus of demosponges in the family Callyspongiidae.
- CaloenasCaloenas is a genus of pigeons. The only living species is the Nicobar pigeon (C. nicobari
- CalonectrisCalonectris is a genus of seabirds. The genus name comes from Ancient Greek kalos, "good"
- CalpinaeThe Calpinae are a subfamily of moths in the family Erebidae described by Jean Baptiste Bo
- CalycophoraeCalycophorae is a suborder of Siphonophores alongside two other suborders Physonectae and
- CalypteGenus of birds
- CalyptomenaGenus of birds
- CamarasaurusGenus of dinosaur from the Late Jurassic
- CamarhynchusGenus of birds
- CamaropteraGenus of birds
- Cambarus monongalensisCambarus monongalensis, the blue crayfish or Monongahela crayfish, is a species of burrowi
- Cambrian Stage 3Unnamed third stage of the Cambrian
- CambrorasterCambroraster is an extinct monotypic genus of hurdiid radiodont, dating to the middle Camb
- CamelidaeFamily of mammals
- CameliniTribe of mammals
- Camera trapCamera triggered by motion
- Cameroon indigobirdThe Cameroon indigobird (Vidua camerunensis) is a species of bird in the family Viduidae.
- Camillo RanzaniCamillo Ranzani (22 June 1775 – 23 April 1841, Bologna) was an Italian priest and a natura
- Camillo RondaniCamillo Rondani (21 November 1808 – 17 September 1879) was an Italian entomologist noted f
- CampephilusGenus of birds
- CampetheraGenus of birds
- CampinasuchusCampinasuchus is an extinct genus of baurusuchid mesoeucrocodylian from Minas Gerais State
- Campo minerThe campo miner (Geositta poeciloptera) is a Vulnerable species of bird in the subfamily S
- CampodeaCampodea is a genus of small, white, bristle-tailed arthropods in the order Diplura. The b
- CampodeidaeThe Campodeidae are a family of hexapods belonging to the order Diplura. These pale, eyele
- CamptosaurusCamptosaurus ( KAMP-tə-SOR-əs) is a genus of plant-eating, beaked ornithischian dinosaurs
- CampylonotoideaCampylonotoidea is a superfamily of shrimp, containing the two families Campylonotidae and
- CampylorhynchusGenus of birds
- Canada gooseSpecies of goose native to the Northern Hemisphere
- Canada lynxMedium-sized wild cat
- CanadaspisExtinct genus of arthropods
- Canadian Horse Racing Hall of FameThe Canadian Horse Racing Hall of Fame was established in 1976 to honour those who have ma
- Canadian International StakesThe Canadian International Stakes is a Grade I stakes race for thoroughbred racehorses fro
- CanalipalpataCanalipalpata, also known as bristle-footed annelids or fan-head worms, is an order of pol
- CanariomysCanariomys is an extinct genus of rodents (Old World rats and mice) that once existed on t
- CanasteroGenus of birds
- Cancer pagurusSpecies of crustacean
- Cane toadWorld's largest true toad
- Canid hybridResult of interbreeding between the species of the genus Canis
- CaniformiaSuborder of mammals
- CaninaeSubfamily of carnivores
- Canine toothLong, pointed tooth in mammals
- CanisGenus of canines
- Canthidermis maculataCanthidermis maculata, also known as rough triggerfish or spotted oceanic triggerfish, is
- CantorchilusGenus of birds
- Canyon wrenSpecies of bird
- Cape Barren gooseSpecies of bird native to southern Australia
- Cape batisThe Cape batis (Batis capensis) is a small, stout insect-eating passerine bird in the watt
- Cape foxSpecies of carnivore
- Cape grassbirdSpecies of bird
- Cape ground squirrelSpecies of mammal
- Cape parrotSpecies of bird
- Cape penduline titThe Cape penduline tit or southern penduline tit (Anthoscopus minutus) is a species of bir
- Cape short-eared gerbilThe Cape short-eared gerbil (Desmodillus auricularis) is a species of rodent in the family
- Cape sugarbirdThe Cape sugarbird (Promerops cafer) is one of the eight bird species endemic to the Fynbo
- Capillaria aerophilaSpecies of roundworm
- Capillaria plicaSpecies of roundworm
- CapillariidaeCapillariidae is a family of parasitic nematodes. All its members are parasites in vertebr
- Capital and income breedingCapital breeding and income breeding refer to the methods by which some organisms perform
- CapitellidaeCapitellidae is a polychaete worm family in the subclass Scolecida.
- CapitoGenus of birds
- CapniidaeFamily of stoneflies
- Capped heronSpecies of bird
- CapreolinaeSubfamily of mammals
- CaprimulgusGenus of birds
- CaprinaeSubfamily of mammals
- Captains FlatCaptains Flat is a town in the Southern Tablelands of rural New South Wales, Australia, in
- Captive breedingIntentional breeding of wild organisms by humans
- Captivity (animal)Animal being held by humans
- CapulomalaCapulomala is an extinct genus of stereospondyl temnospondyl known from the Early Triassic
- Caquetá titi monkeyThe Caquetá titi monkey (Plecturocebus caquetensis), also known as the red-bearded titi or
- CarabaoPhilippine water buffalo
- CaracalMedium-sized wild cat
- Caracara (genus)Genus of birds
- Caracara (subfamily)Subfamily of birds
- CaranxGenus of fishes
- CarassiusGenus of fishes
- Carausius (insect)Carausius is a genus of the tribe Lonchodini, in the order Phasmatodea (stick and leaf ins
- Carausius morosusSpecies of insect
- CarbotripluraExtinct genus of basal insect
- CarcharhiniformesOrder of sharks
- Carcinus maenasSpecies of invasive crab
- CardellinaGenus of birds
- Cardinal beetleSpecies of beetle
- CardinalisGenus of birds
- Cardinium"Candidatus Cardinium" is a genus of Gram-negative parasitic bacteria that reside within c
- CarduelinaeSubfamily of birds
- CarduelisGenus of birds
- CarebaraCarebara is a genus of ants in the subfamily Myrmicinae. It is one of the largest myrmicin
- Carebara diversaSpecies of ant
- Carel FabritiusCarel Pietersz. Fabritius (Dutch pronunciation: ; bapt. 27 February 1622 – 12 October 1654
- Caretta, West VirginiaCaretta is an unincorporated community located in McDowell County, West Virginia, United S
- CariamidaeThe seriemas are the sole living members of the small bird family Cariamidae, which is als
- CariamiformesOrder of birds
- Caribbean monk sealExtinct species of seal native to the Caribbean
- CarideaInfraorder of crustacean; "true" shrimp
- Carl H. EigenmannCarl Henry Eigenmann (March 9, 1863 – April 24, 1927) was a German-American ichthyologist
- Carl RettenmeyerAmerican biologist
- Carlile ShaleThe Carlile Shale is a Turonian age Upper/Late Cretaceous series shale geologic formation
- Carlo EmeryCarlo Emery (25 October 1848, Naples – 11 May 1925) was an Italian entomologist. He is rem
- CarminePigment, aluminium salt of carminic acid
- Carnaby's black cockatooSpecies of birds
- CarnosauriaExtinct group of theropod dinosaurs
- CarnotauriniCarnotaurini is a tribe of the theropod dinosaur family Abelisauridae from the Late Cretac
- CarnotaurusGenus of dinosaur from the Late Cretaceous period
- Carolina parakeetExtinct species of parakeet native to North America
- Carolina wrenSpecies of bird
- CarolozitteliaCarolozittelia is an extinct genus of mammals, belonging to the order Pyrotheria. It conta
- Carpenter beeCommon name for a genus of bees
- Carpet sharkOrder of sharks
- CarpolestidaeCarpolestidae is a family of primate-like Plesiadapiformes that were prevalent in North Am
- CarrionDead and decaying flesh of an animal
- Carrion crowSpecies of bird
- Carukia barnesiCarukia barnesi is an extremely venomous jellyfish found near Australia. Stings can result
- Caruncle (bird anatomy)Fleshy growth on the head or neck of a bird
- CaryophylliidaeThe Caryophylliidae are a family of stony corals found from the tropics to temperate seas,
- CaryothraustesGenus of birds
- CascocaudaCascocauda (meaning "ancient tail") is an extinct genus of anurognathid pterosaur from the
- CaseidaeExtinct family of vertebrate animals
- CaseoidesCaseoides is an extinct genus of large caseid synapsids that lived in the Kungurian Age (l
- CaseopsisCaseopsis is an extinct genus of large pelycosaurs that was about 3 metres (10 ft) long. C
- Cashmere goatAny breed of goat that produces cashmere wool
- CasineriaCasineria is an extinct genus of tetrapodomorph which lived about 340–334 million years ag
- Caspian red deerSubspecies of deer
- Caspian sealSpecies of seal endemic to the Caspian Sea
- Caspian ternSpecies of bird
- Caspian tigerExtinct tiger population in Central and West Asia
- CassiopeaCassiopea (upside-down jellyfish) is a genus of true jellyfish and members of the family C
- Cassiopea ornataSpecies of jellyfish
- CastoridaeFamily of mammals
- CastorocaudaJurassic beaver-like mammal from China
- CasuariidaeFamily of birds
- CasuariiformesOrder of birds
- Cat Aficionado AssociationThe Cat Aficionado Association (CAA) is China's largest registry of pedigreed cats and is
- Cat communicationCats communicate for a variety of reasons, including to show happiness, express anger, sol
- Cat fleaSpecies of flea
- Catamenia (bird)Genus of birds
- CatascopusCatascopus is a genus in the beetle family Carabidae. There are more than 100 described sp
- CatenulidaOrder of free-living flatworms
- CatephiaGenus of moths
- CaterpillarLarva of a butterfly or moth
- CathartesGenus of birds
- CatharusGenus of birds
- CathaymyrusCathaymyrus is a genus of Early Cambrian chordate known from the Chengjiang biota in Yunna
- CathemeralityIrregular organismal activity pattern
- CatlaSpecies of fish
- CatocalinaeThe Catocalinae are a subfamily of noctuoid moths, placed in family Noctuidae. In the alte
- Cattle egretFormer genus of herons
- Cattle tyrantSpecies of bird (Machetornis rixosa)
- Caucasian grouseSpecies of bird
- Cave bearExtinct species of carnivore
- Cave hyenaExtinct subspecies of carnivore
- CaviaGenus of rodents
- CaviidaeFamily of rodents that includes the domestic guinea pig
- CaviinaeCaviinae is a subfamily uniting all living members of the family Caviidae with the excepti
- CaviomorphaSub-set of rodents in South America
- CebidaeFamily of New World monkeys
- CecidomyiidaeFamily of flies
- CecropisGenus of birds
- Celeus (bird)Genus of birds
- CentemodonCentemodon (meaning "point tooth") is an extinct genus of basal phytosaur from the Late Tr
- Central American agoutiThe Central American agouti (Dasyprocta punctata) is a species of agouti from the family D
- Central American least shrewThe Central American least shrew (Cryptotis orophila) is a species of mammal in the family
- Central American squirrel monkeyThe Central American squirrel monkey (Saimiri oerstedii), also known as the red-backed squ
- Central Asian FlywayMajor flyway for migrating birds in Eurasia
- Central AustraliaRegion in Australia
- Central FlywayBird migration route
- CentriscidaeThe Centriscidae are a family of fishes from the order Syngnathiformes which includes the
- CentrocercusGenus of birds
- CentroleninaeCentroleninae is one of two subfamilies of the family Centrolenidae. It has nine genera di
- CentruroidesCentruroides is a genus of scorpions of the family Buthidae. Several North American specie
- CephalaspisGenus of extinct jawless fish
- CephalodiscidaOrder in the class Pterobranchia in the phylum Hemichordata
- Cephalon (arthropod head)The cephalon is the head section of an arthropod. It is a tagma, i.e., a specialized group
- CephalopodClass of mollusks
- Cephalopod finCephalopod fins, sometimes known as wings, are paired flap-like locomotory appendages. The
- Cephalopod limbAll cephalopods possess flexible limbs extending from their heads and surrounding their be
- Cephalopods in popular culturePopular depictions of the class Cephalopoda
- CephalotesCephalotes is a genus of tree-dwelling ant species from the Americas, commonly known as tu
- Cephalotes atratusCephalotes atratus is a species of arboreal ant in the genus Cephalotes, a genus character
- CephalothoraxArthropod tagma
- CepheaCephea is a genus of true jellyfish in the family Cepheidae. They are found in the Indo-Pa
- Cephea cepheaSpecies of jellyfish
- CephoideaCephoidea is a small superfamily within the Symphyta, commonly referred to as stem sawflie
- CepphusGenus of birds
- Ceprano ManPrehistoric human skull cap from Italy
- CerambusIn Greek mythology, Cerambus (Ancient Greek: Κέραμβος, Kerambos), a son of Euseiros (himse
- CerambycinaeCerambycinae is a subfamily of the longhorn beetle family (Cerambycidae). The subfamily ha
- CerapodaCerapoda ("ceratopsians" and "ornithopods") is a clade of the dinosaur clade Ornithischia,
- Ceratitis capitataSpecies of insect
- CeratogaulusExtinct genus of rodents
- CeratophryidaeFamily of amphibians
- CeratophyllusCeratophyllus is a widespread genus of fleas found in temperate climates. Some of its memb
- Ceratophyllus gallinaeSpecies of flea
- CeratopipraGenus of birds
- CeratopogonidaeFamily of flies commonly known as no see ums, or biting midges
- CeratopsiaExtinct suborder of Dinosaurs
- CeratosauridaeCeratosauridae is an extinct family of theropod dinosaurs belonging to the infraorder Cera
- CeratosaurusGenus of theropod dinosaur from the Late Jurassic period
- CercomacraGenus of birds
- CercopithecinaeSubfamily of Old World monkeys
- CercopitheciniCercopithecini is a tribe of Old World monkey that includes several monkey species, includ
- CercotrichasGenus of birds
- CercusPaired appendages on the rear-most segments of many arthropods
- Cereal leaf beetleSpecies of beetle
- CerithioideaThe Cerithioidea is a superfamily of marine, brackish water and freshwater gastropod conta
- Ceroplastes ceriferusSpecies of scale insect
- CerthiaGenus of birds
- CerthilaudaGenus of birds
- Cerulean warblerSpecies of bird
- CervalcesExtinct genus of deer
- Cervical dislocationCervical dislocation is a common method of animal euthanasia. It refers to a technique use
- CervinaeSubfamily of deer
- CervusGenus of deer and elk
- CetancodontamorphaCetancodontamorpha is a total clade of artiodactyls defined, according to Spaulding et al.
- CetologyStudy of whales, dolphins, porpoises, and other cetaceans
- Cetti's warblerCetti's warbler (Cettia cetti) is a small, brown bush-warbler which breeds in southern and
- CettiaGenus of birds
- CettiidaeFamily of birds
- Ceyx (bird)Genus of birds
- ChachalacaGenus of birds
- ChaeropusExtinct genus of marsupials
- ChaetocercusGenus of birds
- ChaetognathaPhylum of marine worms
- ChaeturaGenus of birds
- ChalcidesChalcides is a genus of skinks (family Scincidae).
- ChalcomitraGenus of birds
- ChalcophapsGenus of birds
- ChalcopsittaGenus of birds
- ChalcostigmaGenus of birds
- ChalicotheriidaeFamily of extinct mammals
- ChalicotheriumExtinct genus of mammals
- ChalinolobusChalinolobus is a genus of bats, commonly known as pied, wattled, or long-tailed bats. The
- ChalybionChalybion is a genus of blue mud dauber wasps in the family Sphecidae. Chalybion species n
- ChamaesauraThe Chamaesaura, also known as grass lizards, are a genus of legless lizards from southern
- ChamaetylasGenus of birds
- ChamaezaChamaeza is a genus of South American birds in the family Formicariidae.
- ChamoisSpecies of antelope
- Champagne Stakes (United States)The Champagne Stakes is an American Grade I Thoroughbred horse race for two-year-old horse
- ChampsosaurusExtinct genus of reptiles
- Changfu TempleChangfu Temple (Chinese: 三峽長福巖; pinyin: Sānxiá Chángfú Yán; Pe̍h-ōe-jī: Sam-kiap Tióng-hok
- Channel-billed toucanSpecies of bird
- ChannichthyidaeFamily of fishes
- ChannichthysChannichthys is a genus of marine ray-finned fish belonging to the family Channichthyidae,
- Chapman's swiftChapman's swift (Chaetura chapmani) is a species of bird in subfamily Apodinae of the swif
- CharacidaeFamily of fishes
- CharadriidaeFamily of birds
- CharadriiformesOrder of birds
- CharadriusGenus of birds
- CharassognathidaeCharassognathidae is an extinct family of basal cynodonts known from the Late Permian of S
- Charidotella sexpunctataSpecies of beetle
- Charles Hamilton SmithBritish Army officer, artist, naturalist, antiquary and spy
- Charles Haskins TownsendCharles Haskins Townsend (September 29, 1859 – January 28, 1944) was an American zoologist
- Charles Hazelius SternbergCharles Hazelius Sternberg (June 15, 1850 – July 20, 1943) was an American fossil collecto
- Charles Henry Tyler TownsendCharles Henry Tyler Townsend (December 5, 1863 – March 17, 1944) was an American entomolog
- Charles Mortram SternbergCharles Mortram Sternberg (18 September 1885 – 8 September 1981) was an American-Canadian
- Charles Robert BreeCharles Robert Bree (11 February 1811 – 17 October 1886) was a British physician, ornithol
- Charles Thomas BruesCharles Thomas Brues (June 20, 1879, Wheeling, West Virginia – July 22, 1955, Crescent Cit
- Charles Wallace RichmondCharles Wallace Richmond (December 31, 1868 – May 19, 1932) was an American ornithologist.
- Charles Wyville ThomsonSir Charles Wyville Thomson FRSE FRS FLS FGS FZS (5 March 1830 – 10 March 1882) was a Scot
- CharmosynaCharmosyna is a genus of parrots in the family Psittaculidae. The three currently recogniz
- CharmosynopsisCharmosynopsis is a genus of parrots in the family Psittaculidae that are endemic to New G
- CharniaGenus of frond-like lifeforms
- CharniidaeCharniidae is a family of rangeomorphs. It is the only non-monotypic family of Rangeomorph
- CharniodiscusGenus of extinct Ediacaran lifeform
- Charolais cattleFrench beef cattle breed
- CharoniaGenus of gastropods
- Charonia tritonisCharonia tritonis, common name the Triton's trumpet, the giant triton or pū is a species o
- CharonosaurusCharonosaurus ( kə-ROH-nə-SOR-əs; meaning "Charon's lizard") is a genus of dinosaur whose
- Chat (bird)Subfamily of birds
- Chatham Islands parakeetThe Chatham Islands parakeet (Cyanoramphus forbesi), also known as Forbes' parakeet, is a
- ChathamiidaeFamily of caddisflies
- ChattianSecond age of the Oligocene Epoch
- ChauliodinaeFishflies are members of the subfamily Chauliodinae, belonging to the megalopteran family
- ChaunaChauna is a genus of birds in the screamer family. Its two members are found in wetlands o
- Cheek pouchPockets on both sides of the head of some mammals
- Cheese flySpecies of fly
- CheirogaleidaeFamily of lemurs
- CheliceraeThe chelicerae () are the mouthparts of the subphylum Chelicerata, an arthropod group that
- ChelodinaGenus of turtles
- Chemical communication in insectsChemical communication in insects is social signalling between insects of the same or diff
- Chemical defense in insectsChemical defense in insects allows these small animals to ward off much larger predators.
- Chemical mimicryChemical mimicry (or molecular mimicry) is a type of biological mimicry involving the use
- ChenanisaurusChenanisaurus is a genus of predatory abelisaurid dinosaur, with a single known species C.
- ChendytesChendytes lawi is an extinct, goose-sized flightless marine duck, once common on the Calif
- Chengalloor DakshayaniOldest known elephant in captivity
- Cherax pulcherSpecies of crayfish
- Chestnut bulbulThe chestnut bulbul or chestnut-backed bulbul (Hemixos castanonotus) is a songbird in the
- Chestnut wattle-eyeThe chestnut wattle-eye (Platysteira castanea) is a species of bird in the family Platyste
- Chestnut woodpeckerThe chestnut woodpecker (Celeus elegans) a species of bird in subfamily Picinae of the woo
- Chestnut-backed sparrow-larkThe chestnut-backed sparrow-lark (Eremopterix leucotis) is a passerine bird which is a res
- Chestnut-capped babblerSpecies of bird
- Chestnut-capped laughingthrushThe chestnut-capped laughingthrush (Pterorhinus mitratus), also known as the spectacled la
- Chestnut-crowned babblerThe chestnut-crowned babbler (Pomatostomus ruficeps) is a medium-sized bird that is endemi
- Chestnut-crowned gnateaterThe chestnut-crowned gnateater (Conopophaga castaneiceps) is a species of bird in the fami
- Chestnut-headed crakeSpecies of bird
- Chestnut-headed tanagerSpecies of bird
- Chestnut-mandibled toucanSubspecies of bird
- Chestnut-vented warblerThe chestnut-vented warbler, chestnut-vented tit-babbler or rufous-vented warbler (Curruca
- Chestnut-winged babblerThe chestnut-winged babbler (Cyanoderma erythropterum) is a babbler species in the family
- ChevrotainFamily of mammals belonging to even-toed ungulates
- ChialingosaurusChialingosaurus (meaning "Chialing Lizard") is a genus of herbivorous stegosaurian dinosau
- ChianinaItalian breed of cattle
- Chick cullingProcess of killing newly hatched chicks for which the industry has no use
- Chihuahua (dog breed)Mexican breed of dog
- Chile Darwin's frogThe Chile Darwin's frog (Rhinoderma rufum), also called the northern Darwin's frog, is a p
- ChilgatheriumChilgatherium ('Chilga beast' after the locality in which it was found) is the earliest an
- ChimaerasuchusChimaerasuchus ("chimera crocodile") is an extinct genus of Chinese crocodyliform from the
- ChinchillaRodent genus
- Chinchilla rabbitFamily of rabbit breeds
- ChinchillidaeFamily of rodents
- Chinese alligatorSpecies of reptile
- Chinese bamboo partridgeThe Chinese bamboo partridge (Bambusicola thoracicus) is a small Galliform bird. It is one
- Chinese giant salamanderSpecies of amphibian
- Chinese goralThe Chinese goral (Naemorhedus griseus), also known as the grey long-tailed goral or centr
- Chinese rubythroatThe Chinese rubythroat (Calliope tschebaiewi) is a small passerine bird in the family Musc
- Chinese water dragonSpecies of lizard
- Chinese zokorThe Chinese zokor (Eospalax fontanierii) is a species of rodent in the family Spalacidae.
- ChiniquodonChiniquodon is an extinct genus of carnivorous cynodonts, which lived during the Late Tria
- ChinlechelysChinlechelys ( meaning Chinle turtle) is an extinct genus of stem-turtle belonging to Test
- Chionodraco rastrospinosusThe ocellated icefish (Chionodraco rastrospinosus) is a fish of the family Channichthyidae
- ChionoecetesGenus of crabs
- ChionophileGroup of Organisms able to thrive in cold winter conditions
- ChipmunkSubtribe of mammals
- ChirodropidaeChirodropidae is a family of venomous box jellyfish within the class Cubozoa. Like other m
- Chironex fleckeriSpecies of jellyfish
- ChironominaeSubfamily of flies
- ChironominiChironomini is a tribe of midges in the non-biting midge family (Chironomidae).
- ChiroxiphiaGenus of birds
- ChiruromysChiruromys is a genus of Old World mouse that is restricted to New Guinea and the nearby i
- ChitalSpecies of deer
- ChitonClass of marine molluscs
- ChlamisusChlamisus, sometimes known as the cloaked warty leaf beetles, is a genus of warty leaf bee
- ChlamyderaChlamydera is a genus of birds in the family Ptilonorhynchidae. All species found in Austr
- ChlamydotisGenus of birds
- ChlamyphoridaeFamily of armadillos
- ChlorocebusGenus of Old World monkeys
- ChlorocichlaGenus of birds
- ChlorophoniaGenus of birds
- ChloropicusGenus of birds
- ChlorospingusGenus of birds
- ChlorostilbonGenus of birds
- ChlorothraupisGenus of birds
- Chocó tapaculoThe Chocó tapaculo (Scytalopus chocoensis) is a species of bird in the family Rhinocryptid
- Choco toucanThe Choco toucan (Ramphastos brevis) is a near-passerine bird in the family Ramphastidae,
- Chocó vireoThe Chocó vireo (Vireo masteri) is a species of bird in the family Vireonidae that was dis
- Choiseul pigeonExtinct bird species from the Solomon Islands
- ChondrocladiaChondrocladia is a genus of carnivorous demosponges of the family Cladorhizidae. Neocladia
- ChonopeltisChonopeltis is a genus of fish lice in the subclass Branchiura. These crustaceans are ecto
- Chopi blackbirdSpecies of bird
- ChordeilesGenus of birds
- ChoristidaeThe Choristidae are a small (only eight species in three genera) family of scorpionflies k
- ChoristoderaExtinct order of reptiles
- ChorotypidaeChorotypidae is a family of tropical Asian grasshoppers (order Orthoptera), formerly inclu
- ChoughGenus of birds
- Chow ChowDog breed
- Christian Erich Hermann von MeyerGerman paleontologist
- Christian Ludwig BrehmChristian Ludwig Brehm (24 January 1787 – 23 June 1864) was a German pastor and ornitholog
- Christian Rudolph Wilhelm WiedemannChristian Rudolph Wilhelm Wiedemann (7 December 1770 – 31 December 1840) was a German phys
- Christian the lionStory of an adopted African lion
- Christmas beetleGenus of beetles
- Christmas Bird CountCensus of birds in the Western Hemisphere
- Christmas frigatebirdSpecies of bird
- Christmas Island pipistrelleExtinct species of bat
- Christmas Island red crabSpecies of crustacean (Gecarcoidea natalis)
- Christmas Island shrewSpecies of mammal
- Christmas Island swiftletThe Christmas Island swiftlet (Collocalia natalis), also known as the Christmas glossy swi
- ChroicocephalusGenus of birds
- ChromadoreaClass of roundworms
- Chromodoris lochiChromodoris lochi, common name Loch's chromodoris, or Loch’s chromodoris slug, is a specie
- Chronicle BooksChronicle Books is a San Francisco–based American publisher of books for adults and childr
- ChronospeciesSpecies derived from extinct ancestor
- ChrotomysThe genus Chrotomys contain a unique group of rodents found only in the Philippines, speci
- Chrysaora fuscescensSpecies of cnidarian
- ChrysochroaGenus of beetles
- Chrysochroa fulgidissimaChrysochroa fulgidissima, "jewel beetle" or Yamato tamamushi in Japanese (ヤマトタマムシ) is a me
- ChrysococcyxGenus of birds
- ChrysocolaptesGenus of birds
- ChrysolophusGenus of birds
- ChrysomeloideaThe Chrysomeloidea are an enormous superfamily of beetles, with tens of thousands of speci
- ChrysommaGenus of birds
- Chrysomya putoriaSpecies of fly
- ChrysomyinaeThe Chrysomyinae are a subfamily of Calliphoridae, or blow flies. According to Whitworth,
- ChrysopaChrysopa is a genus of green lacewings in the neuropteran family Chrysopidae.
- Chrysopa perlaChrysopa perla, the Pearly Green Lacewing, is an insect species belonging to the green lac
- ChrysopeleaGenus of snakes
- ChrysoperlaChrysoperla is a genus of common green lacewings in the neuropteran family Chrysopidae. Th
- Chrysoperla carneaSpecies of insect
- ChrysopidaeFamily of insects
- ChrysopsGenus of insects
- Chrysops caecutiensChrysops caecutiens, common name splayed deer fly, is a species of horse fly belonging to
- Chrysops relictusChrysops relictus, the twin-lobed deerfly, is a largish European and Asian deerfly of abou
- ChrysopsiniChrysopsini is a tribe of horse and deer flies in the family Tabanidae.
- ChrysuroniaGenus of birds
- Chuck-will's-widowThe chuck-will's-widow (Antrostomus carolinensis) is a nocturnal bird of the nightjar fami
- CicadomorphaInfraorder of insects
- Cicindela campestrisSpecies of beetle
- Cicindela sexguttataSpecies of beetle
- CicindeliniCicindelini is a tribe of tiger beetles in the family Cicindelidae, containing the overwhe
- CiconiaGenus of birds
- Ciconia When They CryCiconia When They Cry is an episodic visual novel game series in development by 07th Expan
- CidaridaeCidaridae is a family of sea urchins in the order Cidaroida.
- CifellilestesCifellilestes is a genus of early mammaliaform from the Late Jurassic Morrison Formation o
- CimexGenus of true bugs
- Cimex hemipterusSpecies of true bug
- CimicidaeFamily of parasitic blood-feeding insects
- CimolodontaCimolodonta is a clade of multituberculate mammals that lived from the Cretaceous to the E
- Cincinnati Zoo and Botanical GardenZoo in Cincinnati, Ohio, United States
- CinclodesGenus of birds
- CincloramphusGenus of birds
- CinclosomatidaeFamily of birds
- Cinereous finchSpecies of bird
- Cinereous harrierThe cinereous harrier (Circus cinereus) is a South American bird of prey of the harrier fa
- Cinereous tinamouThe cinereous tinamou (Crypturellus cinereus), also known as brushland tinamou, is a type
- Cinereous vultureSpecies of bird
- CingulataOrder of armored mammals from the Americas
- Cinnamon ibonSpecies of bird
- CinnyrisGenus of birds
- Ciona intestinalisSpecies of ascidian
- CircaetinaeSubfamily of birds
- CircaetusGenus of birds
- CirolanidaeCirolanidae is a family of aquatic isopods.
- CisgenesisCisgenesis is a product designation for a category of genetically engineered plants. A var
- Cissa (bird)Genus of birds
- Cistecephalus Assemblage ZoneThe Cistecephalus Assemblage Zone is a tetrapod assemblage zone or biozone found in the Ad
- CisticolaGenus of birds
- CisticolidaeFamily of birds
- CistothorusGenus of birds
- Citron-crested cockatooSubspecies of bird
- CivetMammals of the families Viverridae and Nandiniidae and the genus Fossa
- Civet (perfumery)Civet (Zibeth; Zibet; Zibetum), also known as civet musk and civet oil, is the glandular s
- CladiellaCladiella is a genus of soft corals native to the Indo-Pacific region. These corals are co
- CladoceraOrder of small freshwater animals
- CladonotinaeCladonotinae is a subfamily of groundhoppers (Orthoptera: Caelifera) containing more than
- CladotheriaCladotheria is a clade (sometimes ranked as a legion) of mammals. It contains modern theri
- ClamCommon name for several kinds of bivalve mollusc
- ClamatorGenus of birds
- Clanga (bird)Genus of birds
- ClarkeiteuthisClarkeiteuthis is a genus of extinct belemnoid cephalopod known from the lower Jurassic in
- ClarkinaClarkina is an extinct genus of conodonts. It is considered to be an offshore, outer shelf
- ClaudiosaurusClaudiosaurus (claudus is Latin for 'lameness' and saurus means 'lizard') is an extinct ge
- ClavigrallaClavigralla is a genus of true bugs belonging to the family Coreidae.
- Clavigralla gibbosaSpecies of true bug
- Cleaner shrimpVarious crustaceans sharing a common name
- Cleaning symbiosisMutually beneficial association between individuals of two species
- Cleres Zoological ParkCleres Zoological Park (Parc Zoologique De Clères) is located in Clères, 22 kilometres (14
- CleridaeCheckered beetles
- CleroideaCleroidea is a small superfamily of beetles containing over 10,000 species. Most of the me
- ClethrionomyiniThe Clethrionomyini are a tribe of forest voles in the subfamily Arvicolinae. This tribe w
- Cley MarshesNature reserve on the North Sea coast of England
- Cliffwood, New JerseyCliffwood is an unincorporated community located within Aberdeen Township in Monmouth Coun
- ClimacterisGenus of birds
- Clinton Hart MerriamAmerican zoologist and ornithologist
- Clione limacinaSpecies of gastropod
- ClitellataClass of annelids that includes earthworms and leeches
- Cloeon dipterumCloeon dipterum is a species of mayfly with a Holarctic distribution. It is the most commo
- Clothes mothIndex of animals with the same common name
- ClothodidaeClothodidae is a family of webspinners in the order Embioptera. There are about 8 genera a
- Clouded leopardSpecies of wild cat
- Cloven hoofHoof split into two toes
- Cloven-feathered doveSpecies of bird
- ClownfishMonotypic subfamily of fishes
- ClupeidaeFamily of fishes
- ClupeiformesOrder of fishes
- Clutch (eggs)Grouping of eggs in a nest
- Clydesdale horseHorse breed
- ClytoctantesGenus of birds
- CnemathraupisGenus of birds
- CnemidophorusCnemidophorus is a genus of lizards in the family Teiidae. Species in the genus Cnemidopho
- CnemophilusCnemophilus is a genus of satinbirds in the family Cnemophilidae, in which all three speci
- CnidocyteStinging cell used by cnidarians
- Coal titSpecies of bird
- Coal-crested finchSpecies of bird
- Coastal fishFish that inhabit the sea between the shoreline and the edge of the continental shelf
- CoatiSubtribe of mammal
- Cobalt-rumped parrotletThe cobalt-rumped parrotlet (Forpus xanthopterygius) or blue-winged parrotlet is a species
- CobraIndex of animals with the same common name
- CoccidaeThe Coccidae are a family of scale insects belonging to the superfamily Coccoidea. They ar
- Coccinella septempunctataSpecies of beetle
- CoccotrypesCoccotrypes is a genus of typical bark beetles in the family Curculionidae. There are abou
- Coccotrypes dactyliperdaSpecies of beetle
- Coccus (insect)Coccus is a genus of scale insects in the family Coccidae. Several species, such as Coccus
- Coccus viridisSpecies of true bug
- CoccygectomyCoccygectomy is a surgical procedure in which the coccyx or tailbone is removed. It is con
- CoccymysCoccymys is a genus of rodent in the family Muridae endemic to Indonesia and Papua New Gui
- CoccyzusGenus of birds
- CochinealSpecies of insect producing the crimson dye carmine
- CochliomyiaGenus of insects
- Cochliomyia macellariaSpecies of fly
- CochoaGenus of birds
- Cock-of-the-rockGenus of birds
- CockatielSpecies of bird
- CockchaferSpecies of scarab beetle
- CockfightingBlood sport between domesticated roosters
- Cockle (bivalve)Family of edible marine bivalve molluscs
- Coconut crabSpecies of crustacean
- Cocos finchSpecies of bird
- CoeligenaGenus of birds
- CoelopaCoelopa is a genus of kelp flies in the family Coelopidae. There are about 14 described sp
- Coelopa pilipesSpecies of fly
- CoelophysidaeCoelophysidae is a family of primitive carnivorous theropod dinosaurs. Most species were r
- CoelophysisGenus of theropod dinosaurs from the late Triassic
- CoelopidaeThe Coelopidae or kelp flies are a family of Acalyptratae flies (order Diptera), they are
- CoelopinaeCoelopinae is a subfamily of kelp flies in the family Coelopidae.
- CoelurosauriaClade of dinosaurs
- CoenobitaThe genus Coenobita contains 17 species of terrestrial hermit crabs. Several species in th
- CoenobitidaeThe Coenobitidae are the family of terrestrial hermit crabs, widely known for their land-l
- Coke's hartebeestCoke's hartebeest (Alcelaphus buselaphus cokii) or Kongoni is a large migratory antelope t
- ColaptesGenus of birds
- Coldwater fishFish that prefer cooler water temperatures
- ColeoideaSubclass of cephalopods
- ColeorrhynchaSuborder of true bugs
- ColetoSpecies of bird
- ColinusGenus of birds
- ColiusGenus of birds
- Collared aracariSpecies of bird
- Collared lorySpecies of bird
- Collared nightjarSpecies of bird
- Collared peccarySpecies of mammal
- Collared puffbirdThe collared puffbird (Bucco capensis) is a species of bird in the family Bucconidae, the
- CollieType of herding dog
- CollocaliaGenus of birds
- ColobinaeSubfamily of Old World monkeys
- ColobiniColobini is a tribe of Old World monkeys that includes all of the black-and-white colobus,
- ColobopsColobops is a genus of reptile from the Late Triassic of Connecticut. Only known from a ti
- ColobusGenus of Old World monkeys
- Colonial Spanish horseColonial Spanish horse is a term for a group of horse breed and feral populations descende
- Colony collapse disorderAspect of apiculture
- Colorado potato beetleSpecies of beetle
- Colorful pufflegThe colorful puffleg (Eriocnemis mirabilis) is an Endangered species of hummingbird in the
- Colossal squidSpecies of squid
- ColubridaeFamily of snakes
- ColubroidesThe Colubroides are a clade in the suborder Serpentes (snakes). It contains over 85% of al
- ColugoFamily of mammals
- Columba (genus)Genus of pigeons
- Columbian mammothExtinct species of mammoth that inhabited North America
- Columbina (bird)Genus of birds
- ColurellaColurella is a genus of rotifers belonging to the family Lepadellidae. The genus has a cos
- ComatulidaComatulida is an order of crinoids. Members of this order are known as feather stars and m
- Comb-crested jacanaSpecies of bird
- Comfort behaviour in animalsAnimal behavior to maintain health and comfort
- Commercial fishingCatching seafood for commercial profit
- Committee on the Status of Endangered Wildlife in CanadaThe Committee on the Status of Endangered Wildlife in Canada (COSEWIC, French: Comité sur
- Common bent-wing batSpecies of mammal
- Common blackbirdThrush native to Europe, western Asia and North Africa
- Common bottlenose dolphinSpecies of dolphin
- Common breamSpecies of fish
- Common brown lemurThe common brown lemur (Eulemur fulvus) is a species of lemur in the family Lemuridae. It
- Common brushtail possumSpecies of marsupial
- Common buzzardSpecies of bird of prey
- Common carpSpecies of fish
- Common collared lizardSpecies of reptile
- Common cuckooSpecies of bird
- Common death adderSpecies of snake
- Common deguSpecies of rodent
- Common diving petrelSpecies of bird
- Common dolphinSpecies of mammal
- Common duikerThe common duiker (Sylvicapra grimmia), also known as the gray duiker or bush duiker, is a
- Common eiderSpecies of bird
- Common elandSecond largest antelope in the world
- Common emerald doveBird species
- Common flamebackThe common flameback (Dinopium javanense), also referred to as the common goldenback, is a
- Common flatwingSpecies of damselfly
- Common furniture beetleThe common furniture beetle or common house borer (Anobium punctatum) is a woodboring beet
- Common hill mynaSpecies of bird
- Common house geckoSpecies of reptile
- Common kingfisherSpecies of bird
- Common loonSpecies of freshwater bird
- Common merganserSpecies of bird
- Common midwife toadSpecies of amphibian
- Common moorhenSpecies of bird
- Common nameName generally used for a taxon, group of taxa or organism(s)
- Common noctuleSpecies of bat
- Common octopusSpecies of cephalopod
- Common pine sawflySpecies of sawfly
- Common raccoon dogCanid indigenous to East Asia
- Common ringtail possumSpecies of marsupial
- Common seadragonSpecies of fish
- Common slender mongooseSpecies of mongoose from Africa
- Common squirrel monkeyCommon squirrel monkey is the traditional common name for several small squirrel monkey sp
- Common stonechatCommon stonechat is the name used for the Saxicola species Saxicola torquatus when this is
- Common sunstarSpecies of starfish
- Common swiftSpecies of bird
- Common ternMigratory seabird in the family Laridae with circumpolar distribution
- Common toadSpecies of amphibian
- Common treeshrewThe common treeshrew (Tupaia glis) is a small mammal in the treeshrew family Tupaiidae, an
- Common tsessebeThe common tsessebe or sassaby (Damaliscus lunatus lunatus) is the southern, nominate subs
- Common vampire batSpecies of bat native to the Americas
- Common walkingstickSpecies of stick insect
- Common warthogWild member of the pig family
- Common wood pigeonSpecies of large, white/green-naped, arboreal bird of Eurasia
- Community-based conservationConservation movement emerging in the 1980s
- Companion parrotType of pet
- CompsognathusGenus of dinosaurs
- CompsosaurusCompsosaurus (meaning "elegant lizard") is an extinct genus of phytosaur, a crocodile-like
- Comstock–Needham systemNaming system for insect wing veins
- Concealing-Coloration in the Animal KingdomConcealing-Coloration in the Animal Kingdom: An Exposition of the Laws of Disguise Through
- ConchShell or sea snails
- ConchiferaTaxonomic term for shell-bearing molluscs
- CondorName for two species of vultures
- CondyluraCondylura is a genus of moles that contains a single extant species, the star-nosed mole (
- Cone snailFamily of venomous sea snails
- ConfuciusornisExtinct genus of birds
- Congo BasinSedimentary basin of the Congo River in Central Africa
- Congo peafowlSpecies of bird
- Congo serpent eagleSpecies of bird
- ConirostrumGenus of birds
- Connecticut warblerSpecies of bird
- ConodontExtinct agnathan chordates resembling eels
- ConopophagaConopophaga is a genus of birds in the gnateater family. Its members are found in forest a
- ConrauaConraua, known as slippery frogs or giant frogs is a genus of large frogs from sub-Saharan
- Conservation and restoration of insect specimensThe conservation and restoration of insect specimens is the process of caring for and pres
- Conservation InternationalNonprofit environmental organization
- Conservation welfareConservation welfare is a proposed discipline which would focus on establishing the common
- ConstrictionKilling method used by various snake species
- ConstrictotermesConstrictotermes is a genus of Neotropical higher termites within the subfamily Nasutiterm
- Contact callContact calls are seemingly haphazard sounds made by many social animals (such as a chicke
- Contarinia nasturtiiContarinia nasturtii, the swede midge, is a small fly, the larvae of which infest brassica
- ConureGroup of small to medium-sized parrots
- ConvolosaurusConvolosaurus (, meaning "flocking lizard" after the concentration of juvenile fossils fou
- Cookeolus japonicusCookeolus japonicus is a species of fish in the family Priacanthidae, the bigeyes and cata
- CookerooCookeroo is a genus of extinct kangaroos from the Late Oligocene and Early Miocene found i
- Cookiecutter sharkSpecies of shark
- Cooloola (insect)Genus of cricket-like animals
- Coon huntingCoon hunting is the practice of hunting raccoons, most often for their meat and fur. It is
- CoonhoundType of scenthound
- CootGenus of birds
- CopelatusGenus of diving beetles
- CopepodClass of crustaceans
- CopiphoriniThe Copiphorini are a tribe of bush crickets or katydids in the family Tettigoniidae. Prev
- Coppery brushtail possumThe coppery brushtail possum (Trichosurus johnstonii) is a species of marsupial possum in
- Coppery-bellied pufflegThe coppery-bellied puffleg (Eriocnemis cupreoventris) is a species of hummingbird in the
- CoproliteFossilized feces
- Coptotermes gestroiSpecies of termite
- Coquerel's couaCoquerel's coua (Coua coquereli) is a species of cuckoo in the family Cuculidae. It is end
- CoraciasGenus of birds
- CoraciidaeFamily of birds
- CoraciiformesOrder of birds
- CoracinaGenus of birds
- CorallivoreA corallivore is an animal that feeds on coral. Corallivores are an important group of ree
- Cordillera de MéridaThe Cordillera de Mérida is a series of mountain ranges, or massif, in northwestern Venezu
- CordylidaeFamily of lizards
- Cordylobia anthropophagaSpecies of fly
- CoregonusGenus of fishes
- CoreidaeFamily of insects
- CoreinaeCoreinae is a subfamily in the hemipteran family Coreidae. They have been shown to be para
- CoreoideaCoreoidea is a superfamily of true bugs in the infraorder Pentatomomorpha which includes l
- CorethrellidaeCorethrellidae are a family of biting midges, small flying insects belonging to the order
- CoringasuchusCoringasuchus is a genus of mesoeucrocodylian crocodyliform, perhaps a notosuchian. It is
- CorioxenidaeThe Corioxenidae are an insect family of the order Strepsiptera. Species in this family ar
- CorixidaeFamily of true bugs
- Cormorant cullingSeabird culling by the fishing industry
- Corn crakeSpecies of bird found in Europe, Asia and Africa
- Corn snakeSpecies of snake
- Cornish RexBreed of cat
- Cornu aspersumSpecies of edible land snail
- CoronodonCoronodon (meaning "crown tooth") is a genus of toothed (transitional) baleen whales from
- CorrienteAmerican breed of cattle
- Corsac foxSpecies of carnivore
- CorvoideaSuperfamily of birds
- CorydalidaeThe family Corydalidae contains the megalopterous insects known as dobsonflies and fishfli
- CorynorhinusThe genus Corynorhinus consists of the big-eared bats, or American long-eared bats. Only t
- CoryphaenoidesCoryphaenoides is a genus of rattails which is found in all oceans of the world. They are
- CoryphodonPantodont mammal genus from the Paleocene epoch
- CoryphodontidaeCoryphodontidae is an extinct family of pantodont mammals known from the Late Paleocene to
- CoryphomysCoryphomys is an extinct genus of rats, known from sub-fossils found on Timor. Its name is
- CoryphospingusGenus of birds
- CorythornisGenus of birds
- CorythosaurusExtinct genus of dinosaurs
- Coscoroba swanSpecies of waterfowl
- Cosmopolites sordidusSpecies of beetle
- CossyphaGenus of birds
- Costa Rican swiftThe Costa Rican swift (Chaetura fumosa) is a species of bird in subfamily Apodinae of the
- CotingaPasserine bird family found in Central and South America
- Cotinga (genus)Genus of birds
- Cotton ratA cotton rat is any member of the rodent genus Sigmodon. Their name derives from their dam
- Cottontail rabbitGenus of mammals
- CoturniciniCoturnicini is a tribe of birds in the subfamily Phasianinae. It contains the Old World qu
- CoturnixGenus of birds
- CotylorhynchusExtinct genus of synapsids
- CouaGenus of birds
- CoucalGenus of birds
- CountershadingCamouflage to counteract self-shading
- Countries banning non-human ape experimentationThis is a list of countries banning non-human ape experimentation. The term non-human ape
- County of La MarcheMedieval French county
- CourserSubfamily of birds
- CoursingHunting method and dog sport
- Courtship displayCommunication to start a relationship with someone or to get sexual contact
- Cow sharkFamily of sharks
- CowbirdGenus of birds
- Cownose raySpecies of cartilaginous fish
- CowrieCommon name for a group of sea snails
- CoywolfHybrid mammal
- CrabGroup of crustaceans
- Crab fisheriesFisheries which capture or farm crabs
- Crab louseSpecies of insect
- Crab-eating foxSpecies of carnivore
- Crab-ploverSpecies of bird
- Crabeater sealSpecies of carnivore
- Crabs of the British IslesAround 65 species of crab occur in the waters of the British Isles. All are marine, with t
- CracidaeFamily of birds
- CracticinaeSubfamily of birds
- CracticusGenus of birds
- Crag martinGenus of birds
- Cranchia scabraCranchia scabra is a species of glass squid. It is the only species in the genus, and is f
- CranchiidaeFamily of cephalopods known as glass squid
- Crane hawkSpecies of bird
- Cranes of Great BritainCranes are large, long-legged and long-necked birds of the order Gruiformes. Two species o
- Crangon crangonSpecies of shrimp
- CrataerinaGenus of flies
- Crataerina pallidaCrataerina pallida, the swift lousefly, is a species of biting fly in the family of louse
- CratogeomysCratogeomys is a genus of rodent in the family Geomyidae. It was previously considered a s
- CraxGenus of birds
- CreodontaFormer order of extinct flesh-eating placental mammals
- Creole pigBreed of pig
- Creophilus maxillosusSpecies of beetle
- Crepuscular animalAnimal behavior primarily characterized by activity during the twilight
- CrescentchestGenus of birds
- Cresswell ShearerCresswell Shearer, FRS (24 May 1874 – 6 February 1941), was a Canadian-British zoologist a
- Crested argusSpecies of bird
- Crested aukletThe crested auklet (Aethia cristatella) is a small seabird of the family Alcidae, distribu
- Crested bellbirdThe crested bellbird (Oreoica gutturalis) is a medium-sized passerine bird in the family O
- Crested buntingSpecies of bird
- Crested caracaraSpecies of bird
- Crested drongoThe crested drongo (Dicrurus forficatus) is a passerine bird in the family Dicruridae. It
- Crested jayshrikeSpecies of bird from tropical east Asia
- Crested oarfishThe crested oarfish (Lophotus lacepede) is a species of crestfish in the family Lophotidae
- Crested owlSpecies of owl
- Crested partridgeThe crested partridge (Rollulus rouloul) also known as the crested wood partridge, roul-ro
- Crested penguinGenus of birds
- Crested pigeonSpecies of bird
- Crested porcupineSpecies of rodent
- Crested quail-doveThe crested quail-dove (Geotrygon versicolor) is a species of bird in the family Columbida
- Crested satinbirdThe crested satinbird (Cnemophilus macgregorii), formerly known as the crested bird-of-par
- Crested servaline genetSpecies of carnivore
- Crestless curassowThe crestless curassow (Mitu tomentosum) is a species of bird in the family Cracidae, the
- Crestless firebackThe crestless firebacks (Lophura sp) are a group of two species of bird in the family Phas
- CretoxyrhinaExtinct genus of shark
- CribellumCribellum literally means "little sieve", and in biology the term generally applies to ana
- CricetidaeFamily of rodents
- Cricket fightingOrganised fighting between male crickets
- Cricket warblerSpecies of bird
- Crimson chatThe crimson chat (Epthianura tricolor) is a species of small bird found in Australia. It i
- Crimson fruitcrowSpecies of bird
- Crimson rosellaSpecies of bird
- Crimson sunbirdThe crimson sunbird (Aethopyga siparaja) is a species of bird in the sunbird family which
- Crimson-headed partridgeSpecies of bird
- CrimsonwingGenus of birds
- CriniferGenus of birds
- CrinigerGenus of birds
- CrinoidClass of echinoderms
- CrocidiinaeCrocidiinae is a subfamily of bee flies in the family Bombyliidae. There are about 8 gener
- Crocodile sharkThe crocodile shark (Pseudocarcharias kamoharai) is a species of mackerel shark and the on
- CrocodyliformesClade of reptiles
- CrocodylinaeCrocodylinae is a subfamily of true crocodiles within the family Crocodylidae, and is the
- CrocodylusGenus of reptiles
- CrombecGenus of birds
- Crop (anatomy)The crop (also the croup, the craw, the ingluvies, and the sublingual pouch) is a thin-wal
- Crop milkSecretion used by some birds to feed their young
- Cross River gorillaSubspecies of the western gorilla
- Cross-fosteringAnimal breeding technique
- CrossbillGenus of birds
- CrotaphytusCrotaphytus is a genus of lizards, commonly known as collared lizards, in the family Crota
- CrowIndex of animals with the same common name
- Crown (tooth part)Area of teeth covered by enamel
- Crown-of-thorns starfishSpecies of starfish
- Crowned pigeonGenus of birds
- Cruel Treatment of Cattle Act 1822Act of the Parliament of the United Kingdom
- Cryptic rabiesRabies infection from unrecognized exposure
- Cryptic warblerSpecies of bird
- CryptocellusCryptocellus is an arachnid genus in the order Ricinulei, first described by John Westwood
- CryptoclididaeCryptoclididae is a family of medium-sized plesiosaurs that existed from the Middle Jurass
- CryptoclidusExtinct genus of reptiles
- Cryptococcus fagisugaSpecies of true bug
- CryptodiraSuborder of reptiles
- CryptopidaeFamily of centipedes
- Cryptops hortensisCryptops hortensis, the common cryptops, is a species of centipede in the family Cryptopid
- CryptotisThe genus Cryptotis is a group of relatively small shrews with short ears, which are usual
- CrypturellusGenus of birds
- CtenocephalidesCtenocephalides is a flea genus in the tribe Archaeopsyllini which includes the cat flea,
- CtenophoraPhylum of gelatinous marine animals
- CtenophorusCtenophorus is a genus of lizards, commonly known as comb-bearing dragons, found in Austra
- CtenosauriscidaeCtenosauriscidae is an extinct family of pseudosuchian archosaurs within the clade Poposau
- Cuban amazonSpecies of bird
- Cuban green woodpeckerSpecies of bird
- Cuban warblerTiny family of birds found only in Cuba
- Cuckoo beeKleptoparasitic bee lineages
- Cuckoo-finchSpecies of bird
- Cuckoo-rollerSpecies of bird
- CuckooshrikeFamily of birds
- CucujoideaCucujoidea is a superfamily of beetles. This group formerly included all of the families n
- CuculliinaeCuculliinae is one of the larger subfamilies of moths in the family Noctuidae.
- CuculusGenus of birds
- CucumariaCucumaria is a genus of sea cucumbers.
- Cucumaria miniataSpecies of sea cucumber
- CucumariidaeCucumariidae is a family of sea cucumbers, marine animals with elongated bodies, leathery
- Cuiabá RiverThe Cuiabá River (Portuguese: Rio Cuiabá) is a Brazilian river in the western state of Mat
- CuiseryCuisery (French pronunciation: ) is a commune in the Saône-et-Loire department in the regi
- Culcita (echinoderm)Genus of starfishes
- CulexGenus of mosquitoes
- CulicinaeSubfamily of flies
- CulicomorphaThe Culicomorpha are an infraorder of Nematocera, including mosquitoes, black flies, and s
- CulpeoSpecies of carnivore
- Cultural depictions of ravensMany references to ravens exist in world lore and literature. Most depictions allude to th
- CumaceaOrder of crustacean
- CumnoriaCumnoria is a genus of herbivorous iguanodontian dinosaur. It was a basal iguanodontian th
- CupedidaeFamily of beetles
- CurassowSubfamily of birds
- CurculionidaeFamily of beetles
- CurculioninaeSubfamily of beetles
- CurlewGenus of birds
- CurrawongGenus of birds
- CurrucaGenus of birds
- CursorialOrganism adapted specifically to run
- CursoriusGenus of birds
- Cusk-eelFamily of fishes
- CuterebraCuterebra, or rodent bots, is a genus of bot flies that attack rodents and similar animals
- Cuterebra fontinellaSpecies of fly
- CuttlefishFamily of demersal cephalopod
- CutwormType of moth larva
- Cuvier's dwarf caimanSpecies of reptile
- CyamodontoideaCyamodontoidea is an extinct superfamily of placodont marine reptiles from the Triassic pe
- CyaneidaeThe Cyaneidae are a family of true jellyfish. About 20 species are in this family, includi
- CyanistesGenus of birds
- CyanocittaGenus of birds
- CyanocoraxGenus of birds
- CyanodermaGenus of birds
- CyanoliseusCyanoliseus is a genus of parrot that contains a single living species, the burrowing parr
- CyanolycaGenus of birds
- CyanomitraGenus of birds
- CyanopicaGenus of birds
- CyanoramphusGenus of birds
- CybocephalidaeCybocephalidae is a family of sap, bark and fungus beetles in the order Coleoptera with a
- CyclopsittaCyclopsitta is a genus of parrot in the family Psittaculidae. Its four species are native
- CyclostomatidaCyclostomatida, or cyclostomata (also known as cyclostomes), are an ancient order of steno
- CyclostomiSuperclass of jawless fishes
- CylindropuntiaCylindropuntia is a genus of cacti (family Cactaceae), containing species commonly known a
- CynodontiaClade of therapsids
- CynognathiaCynognathia ("dog jaw") is one of two major clades of cynodonts, the other being Probainog
- CynopterusCynopterus (Latin meaning: ״flying dog״) is a genus of megabats. The cynopterine section i
- CyornisGenus of birds
- Cyphoderris monstrosaCyphoderris monstrosa, also known as the great grig, is a species of hump-winged grig in t
- CypridinidaeCypridinidae is a family of ostracods. About half of all known species are bioluminescent.
- CyprinidaeFamily of freshwater fish
- CyprininaeSubfamily of fishes
- CyprinodonCyprinodon is a genus of pupfishes found in waters that range from fresh to hypersaline. T
- CyprinusCyprinus is the genus of typical carps in family Cyprinidae. Most species in the genus are
- CypsiurusGenus of birds
- CyrtacanthacridinaeThe Cyrtacanthacridinae are a subfamily of Orthoptera: Caelifera in the family Acrididae.
- CyrtonyxCyrtonyx is a bird genus in the New World quail family Odontophoridae.
- CzatkobatrachusCzatkobatrachus is an extinct genus of Early Triassic (Olenekian) salientian amphibians. I