Mammal
Warm-blooded vertebrates possessing hair or fur, nursing young with milk, and possessing three inner ear bones.
Spectacled Bear
South America's only native bear, an Andean climber with pale rings around its eyes that builds platforms in the trees.
Spotted Hyena
Bone-crushing jaws, matriarchal clan rule, and a whoop that carries for miles.
Springbok
A gazelle-like antelope that bounces on stiff legs and flares a hidden crest of white hair.
Star-Nosed Mole
A semi-aquatic mole armed with twenty-two fleshy sensory tentacles that can identify and eat a piece of prey in as little as 120 milliseconds.
Striped Hyena
A raised mane that makes it look nearly twice its size, jaws built to crush bone, and a scavenger's range from northern Africa to India.
Striped Skunk
The black-and-white warning sign that hisses, stamps and, if that fails, fires musk up to about twenty feet.
Sunda Colugo
Southeast Asian mammal with a furred gliding membrane from neck to fingers, toes and tail, carrying it up to 100 metres with little height loss.
Sunda Pangolin
A scale-armored mammal that swishes its tail with its scales erect, then curls into a near-impregnable ball when threatened.
Sunda Slow Loris
The deceptively cute nocturnal primate whose elbow-gland secretion carries a protein closely resembling a cat allergen.
Three-Toed Sloth
A slow-metabolism canopy dweller whose fur hosts its own community of moths and algae.
Tufted Capuchin
A stocky Amazon monkey that smashes fruit its jaws cannot crack, or opens it with a piece of branch.
Vaquita
A shy porpoise with the smallest range of any whale, dolphin or porpoise
Virginia Opossum
Fifty-toothed marsupial that fakes its own death through an involuntary catatonic collapse and is virtually immune to pit viper venom.
Walrus
Tusks up to three feet long, hundreds of sensitive whiskers, and the bulk of the third-largest pinniped.
Water Buffalo
A farm giant that can reach 1,000 kg and wallows in mud to cool off.
Weddell Seal
The most southerly-ranging mammal living permanently in Antarctica, rasping breathing holes through new sea ice with its teeth and diving as deep as 720 metres.
West Indian Manatee
A gentle sea cow whose dense bones may help keep it neutrally buoyant, and whose weak low-frequency hearing may be part of why boats keep hitting it.
White-Nosed Coati
A long-nosed forager that sniffs scorpions and spiders out of the forest floor.
White-Tailed Deer
A fawn holds in its waste until its mother returns, and she swallows whatever it passes so predators find no sign of it.
Wild Boar
A long-snouted omnivore whose upper canines are usually visible even when its mouth is closed.