In many ways, CORLEO moves like a pack animal. Its four legs operate independently, responding to subtle cues from the rider’s body. A heads-up display shows balance data and hydrogen levels.

But whether or not they realize it, many thousands of clones have already been produced as the cloning process has become ...

A new book explores what the wolf’s return to the continent means for people who have never known its presence.

A Tennessee County Is ‘Fascinated’ as an Escaped Zebra Runs Wild. ... “That makes capturing an animal like this — getting it to go where you want to go — a little more problematic,” Mr ...