Animals

Sooty mangabey

Sooty mangabey (Cercocebus atys): natural history and conservation

South Asian river dolphin

South Asian River Dolphin (Platanista gangetica)

Southern cassowary

Southern corroboree frog

Sow bug

Sow bug (woodlouse): terrestrial isopod and detritivore

Spadefoot toad

Spaniel

Spaniel (dog): breeds, history, characteristics, and care

Spanish Fighting Bull

Spanish Fighting Bull (Toro Bravo): breed, history and cultural role

Sparassodont

Sparassodonts — extinct South American metatherian predators

Sparrow

Sparrow (genus Passer) — Old World passerine birds

Small, social Old World passerine birds of the genus Passer (family Passeridae). Includes the familiar house sparrow; often found near people, feeding on seeds and insects; conserv

Sparrowhawk

Sparrowhawk (Accipiter nisus): small Eurasian woodland raptor

Species

Speciesism

Spectacled bear

Spectacled caiman

Spectral bat

Sphenodontia

Sphenodontia (Rhynchocephalia): the tuatara lineage

Sphingidae

Sphingidae — hawk moths, sphinx moths and hornworms

Sphinginae

Sphinginae — a subfamily of hawkmoths

Sphynx cat

Sphyrna

Sphyrna — genus of hammerhead sharks

Spider

Spider: biology, behavior, diversity, and ecological role

Spider monkey

Spider monkey (genus Ateles)

Spinner dolphin

Spinosauridae

Spinosauridae: the spined, semi-aquatic theropod family

Spinosaurus

Spiny dogfish

Spiny dogfish (Squalus acanthias)

Spiny lobster

Spiny lobster (rock lobster): biology, behavior, fisheries and conservation

Spiny mouse

Spiny mouse (genus Acomys)

Spitz (dog)

Spitz (dog) — Characteristics, History and Notable Breeds

Splendid astrapia

Splendid astrapia (Astrapia splendidissima)

Sponge

Sponge (Porifera): structure, ecology, and evolutionary significance

Spoonbill

Spoonbill (wading bird)

Spot-billed pelican

Spot-billed pelican (Pelecanus philippensis)

Spotted bass

Spotted eagle ray

Spotted eagle ray (Aetobatus narinari)

Springbok

Springbok (Antidorcas marsupialis): description, behavior, and significance

Springtail

Springtail (Collembola): small soil arthropods with a springing tail

Squamata

Squamata: the scaled reptiles — lizards, snakes and worm lizards

Squealer (Animal Farm)

Squid

Squid: Biology, behavior, and human interactions

Squirrel

Squirrels: Overview, types, behavior, and interactions

Squirrel monkey

Squirrel monkey (Saimiri) — small New World primates

Sri Lankan junglefowl

Sri Lankan junglefowl (Gallus lafayettii)

Staffordshire Bull Terrier

Stag beetle

Stag beetle (Lucanidae)

Starling

Starling (Sturnidae): biology, behavior, distribution, and human interactions

Starlings (family Sturnidae) are small to medium passerine songbirds known for iridescent plumage, gregarious flocks, vocal mimicry and widespread introductions that affect native

Staurikosaurus

Staurikosaurus — an early Late Triassic theropod from Brazil