Animals
Articles about animal species, behavior and classification.
Cypriniformes
Cypriniformes: carps, minnows and their freshwater relatives
Cyprus cat
Cyprus cat — the native Cypriot landrace
Daboia
Daboia — Old World vipers (Russell's vipers)
Dabry's sturgeon
Dabry's sturgeon (Acipenser dabryanus)
Dachshund
Dachshund (breed of dog)
Daddy long-legs spider
Dakotaraptor
Dalmatian (dog)
Dalmatian pelican
Dalmatian pelican (Pelecanus crispus)
Damselfly
Danaini
Danaus eresimus
Daphnia
Daphnia: biology, ecology and uses of water fleas
Darwin's finches
Darwin's finches: Galápagos birds and a classic example of adaptive radiation
Darwinopterus
Darwinopterus: a transitional Jurassic pterosaur
Darwinsaurus
Darwinsaurus — proposed ornithopod genus from southern England
Daspletosaurus
Dasyuridae
Dasyuromorphia
Dasyuromorphia: carnivorous and insectivorous Australasian marsupials
Death's-head hawkmoth
Death's-head hawkmoth (Acherontia) — overview, biology, and cultural notes
Decapod
Decapods (Decapoda): ten-footed crustaceans
Decapodiformes
Decapodiformes: ten-limbed cephalopods (squid, cuttlefish and kin)
Deer
Deer (Cervidae): overview, characteristics, distribution and human interactions
Deer are hoofed mammals of the family Cervidae. This article summarizes their biology, antlers, distribution, behavior, relationships with people, and conservation issues.
Deinocheirus
Deinocheirus — giant ornithomimosaur from Late Cretaceous Mongolia
Deinonychus
Deinonychus — dromaeosaurid theropod of the Early Cretaceous
Deinonychus was a medium-sized dromaeosaurid from the Early Cretaceous of North America, known for its sickle claw and a major role in changing views of dinosaur life and bird orig
Deinosuchus
Deinosuchus: the giant alligator relative of the Late Cretaceous
Deinotherium
Delphinus
Delphinus — the common dolphin genus
Demersal
Dendrobates
Dendrobatoidea
Dendrophryniscus
Dendrophryniscus: a Neotropical genus of true toads
Denman (horse)
Denman (racehorse)
Dermestidae
Dermophis gracilior
Dermophis gracilior — a Central American caecilian
Desert dormouse
Desert dormouse (Selevinia betpakdalaensis)
Desert froglet
Desert froglet (Crinia deserticola): an overview
Desert locust
Desert locust (Schistocerca gregaria): biology, outbreaks and impacts
Desert scorpion
Desert scorpion (Hadrurus arizonensis)
A summary of the desert scorpion — the largest North American scorpion — covering appearance, habitat, behavior, venom, life cycle, and interactions with people.
Devon Rex
Devon Rex (cat breed)
Dewlap
Dewlap: the throat fold in animals and its functions
Dhole
Diamantinasaurus
Diamondback rattlesnake
Diapsid
Diapsid: reptiles with two temporal skull openings
Dice snake
Dice snake (Natrix tessellata)