Animals
Articles about animal species, behavior and classification.
Sessility (zoology)
Sessility (zoology): animals that live attached to a surface
Setzer's mouse-tailed dormouse
Seven-arm octopus
Seven-arm octopus (Haliphron atlanticus)
Seychelles parakeet
Seymouria
Seymouria: amphibian-like terrestrial tetrapod of the early Permian
Shaheen falcon
Shaheen falcon (Falco peregrinus peregrinator)
Shanag
Shanag — small dromaeosaurid genus
Shantungosaurus
Shantungosaurus — giant Late Cretaceous hadrosaur from Shandong, China
Shark
Shark: biology, evolution, diversity, and human interactions
Shell (zoology)
Shell (zoology): protective external coverings of animals
Shepherd
Shepherd: roles, practices, history and cultural importance
Shetland Sheepdog
Shetland Sheepdog (Sheltie): Overview, Appearance, Temperament, and Care
Shiba Inu
Shiba Inu — compact Japanese spitz-type dog breed
Shield bug
Shield bug (Acanthosomatidae): overview, biology and significance
Shih Tzu
Shih Tzu — Small long-coated companion dog
Shikoku (dog)
Shikoku (Japanese dog breed)
Ship's cat
Shoaling and schooling
Shonisaurus
Shonisaurus: a giant Triassic ichthyosaur
Short-beaked common dolphin
Short-beaked echidna
Short-beaked echidna (Tachyglossus aculeatus)
Short-faced bear
Short-faced bear (Arctodus)
Short-tailed shearwater
Short-tailed shearwater (muttonbird)
Shovelnose frog
Shrew
Shrew (Soricidae): small insectivorous mammals
Shrew opossum
Shrew opossum (caenolestids): small insectivorous marsupials of the Andes
Shrike
Shrike: the predatory passerine often called the 'butcher bird'
Shrimp
Shrimp: biology, ecology, uses, and distinctions
Shuvuuia
Shuvuuia — small bird-like alvarezsaurid theropod from Late Cretaceous Mongolia
Siamang
Siamang (Symphalangus syndactylus): largest of the lesser apes
Siamese cat
Siamese cat (Wichian Mat)
Siamodon
Siamodon — an iguanodontian dinosaur from Thailand
Siamosaurus
Siamosaurus: Early Cretaceous spinosaurid known from isolated teeth in Thailand
Siberian crane
Siberian crane (Grus leucogeranus)
Siberian Husky
Siberian Husky — origins, appearance, behavior, and uses
Siberian roe deer
Siberian roe deer (Capreolus pygargus)
Siberian tiger
Siberian tiger (Amur tiger) — Panthera tigris tigris
Sicklefin lemon shark
Sicklefin lemon shark (Negaprion acutidens)
Sidewinder
Sidewinder rattlesnake (Crotalus cerastes)
Sierra newt
Sierra newt — a mountain subspecies of the California newt
Sigilmassasaurus
Sigilmassasaurus — Late Cretaceous African theropod known from short neck vertebrae
Sika deer
Sika deer (Cervus nippon)
Silent dormouse
Silent dormouse (Graphiurus surdus)
Silky pocket mouse
Silky pocket mouse (Perognathus flavus)
Silky shark
Silky shark (Carcharhinus falciformis)
Silky sifaka
Silky sifaka (Propithecus candidus)
Silver-haired bat
Silver-haired bat (Lasionycteris noctivagans)
Silverfish
Silverfish (Lepisma saccharina): appearance, biology, and interactions with people