The zebra’s stripes evolved to keep pesky insects at bay, according to the most thorough study to date on the subject.
Hamsters weren’t always spinning on the wheel: There are 26 species of wild hamster, including the Syrian, which was first found near the city of Aleppo.
The ivory trade is an “ecological and moral disaster” that requires businesses and consumers to take up the fight, Hillary Rodham Clinton and Chelsea Clinton argued in a joint op-ed published February 23 in the Financial Times.
An egg-laying, spiny mammal with a four-headed penis is already pretty bizarre, but it turns out short-beaked echidnas are even stranger than we thought.
A hot-pink slug, a Pinocchio lizard, and a troll-haired bug are among our editor’s picks for 2013′s weirdest animal discoveries.
Tiny mammals split off from other species three million years ago, study says.
Meet the giant forest hog, which at 600 pounds (275 kilograms) brings home the record-setting bacon as the world’s biggest pig.
People in Mississippi have spotted a “chupacabra”—get the facts behind these mythical monsters.
Cute new pictures of baby olinguitos—a new mammal recently discovered in South America—have emerged.
Honey badgers, mongooses, civets, and other small carnivores roam Gabon’s forests, according to the first such survey of its kind.
The Web’s cuteness quotient has skyrocketed with pictures of a crib full of baby pandas—but why do we breed them?
A rare photo shows a cane toad with a bat in its mouth in Peru—find out if the bat got away.
Four new species of legless lizard have emerged from a railroad track, vacant city lots, oilfields, and even an airport runway, a new study says.
Penis bones offer the first hard evidence of how an extinct species of bear lived and mated, a new study says.