Earth Matters

Hybrid of extinct aurochs and ice age bison discovered in cave paintings

The story of modern orangutans in 6 arresting photographs

At Glacier Bay, witness a national park emerge from an ice age

Predator-proof fence saves seabirds in Hawaii

It's a girl! Iowa zoo has a new baby black rhino

Tasmanian devil milk may hold key to killing superbugs

​How a caustic lake in Tanzania became a flamingo paradise

Oryx calf born in Chad for the first time in 3 decades

Ancient 'Frankenstein' bug stumps scientists

Rare brown panda is funny, cute and looking for a mate

That's the spot! Koala enjoys some belly rubs

A little help here? Mark the rhino gets tire stuck on his horn