Mammal
Warm-blooded vertebrates possessing hair or fur, nursing young with milk, and possessing three inner ear bones.
Gelada
The Ethiopian highland monkey that grazes mainly on grass, flashes a bleeding-heart chest patch, and rolls its lip back to bare its gums in a facial display no other primate can make.
Geoffroy's Spider Monkey
The monkey whose tail works as a fifth limb.
Gerenuk
A bipedal antelope of Africa's dry thornbush that rears onto its hind legs to reach leaves other antelope can't, and does not drink standing water, relying instead on the succulent plants it eats.
Ghost Bat
Australia's only carnivorous bat, a night hunter that eats even the bones, teeth and fur of its prey.
Giant Anteater
A toothless anteater whose 2-foot tongue flicks in and out up to 150 times a minute.
Gloucestershire Old Spot Pig
Large lop ears, black spots on white, and a history of feeding on windfall fruit in English orchards.
Goat
A domesticated ruminant with rectangular pupils and a digestive system that works nonstop.
Golden Jackal
The Eurasian canid that split from Africa's look-alike golden wolf more than a million years ago, then spread fast across Europe in the last century.
Golden Mole
The sand-swimmer with no visible eyes, and a middle-ear bone denser than any other land mammal's on record.
Greater Jerboa
The desert rodent that flees predators in leaps measured at up to 3 meters long, on hind legs about four times the length of its front ones.
Groundhog
The largest marmot in its range, a tunnelling rodent that sleeps through the winter and warns its neighbours with a shrill whistle.
Harbor Seal
Whiskers that detect a swimming fish's wake, a heart rate that can drop to three or four beats a minute on a dive, and the widest range of any seal on Earth.
Highland Cattle
A long, shaggy coat, handlebar horns, and roots in Scotland going back to the 6th century.
Hispaniolan Solenodon
An ancient island insectivore whose venom, lab tests suggest, lowers blood pressure but fails to paralyse invertebrates.
House Mouse
A 12 to 30 gram squatter whose love songs are too high for human ears.
Iberian Lynx
The tufted-eared rabbit specialist of Iberia's scrubland that clawed its way back from fewer than 100 cats.
Impala
An antelope whose leaps often carry it over bushes and even other impala, with scent glands under black hair on its hind feet.
Japanese Macaque
The world's northernmost wild monkey, meeting -20°C mountain winters with long fur, huddles and, in one valley, a hot-spring soak that may help keep it warm.
Kinkajou
A nocturnal canopy climber that twists 180 degrees between pelvis and head, can hang by its tail and reaches nectar with a 13 cm tongue.
Lar Gibbon
A rainforest singer whose pair duets average 11 minutes and carry up to a kilometre.
Least Weasel
Weighing as little as 30 grams, it kills prey larger than itself and can eat over half its own body weight in a day.
Leopard
A 21 to 75 kg big cat that climbs up to 15 m into a tree carrying its kill, out of reach of lions and hyenas.
Leopard Seal
The serpentine apex hunter of Antarctic pack ice with a reptilian gape and teeth that double as krill sieves.
Llama
A woolly Andean pack animal that makes heavy chain-only antibodies, one of which, raised by immunization, neutralized 96 of 100 HIV-1 strains tested.