Snow leopard-like cheetahs roamed America tens of thousands of years ago, hunting mountain goats across tricky terrain, according to fossilized remains. The big cat, called the American cheetah ...

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The Miracinonyx trumani, commonly known as the American cheetah, lived in North America more than 13,000 years ago. Despite its name, recent studies conducted at the University of Malaga have revealed ...

The work is reported in the August 9 issue of Current Biology by Ross Barnett of the University of Oxford and a team of researchers from Britain, Canada, the United States, Sweden, and Australia.

Pronghorn are among the fastest animals on Earth. Often ranked second to the cheetah for mammalian land speed records, America’s peculiar giraffoid has been said to hit top speeds over 50 miles per ...

Even during the longest government shutdown in U.S. history, life goes on — literally. While the Smithsonian’s National Zoo and Conservation Biology Institute was closed to the public and not sharing ...