Are buffalo and bison the same? How can you tell a toad from a frog? This article clears up confusion on mixed-up groups of animals.

A proposed 211-mile private industrial corridor across unspoiled tundra risks an iconic caribou herd, the lifestyles and ...

Appearing in New Zealand sometime between 700,000 to 1.8 million years ago, everything about this now-extinct beast of a bird ...