The pronghorn is the fastest land mammal in the Americas. At top speed, they can hit 55 mph. But what are they running from?

Decades after nearly going extinct, the world’s only existing population of Asiatic lions is overrunning a small reserve in ...

Earth's food webs suffer when giant animals go extinct, even 10,000 years later.

Between 50,000 and 10,000 years ago, many of the world's largest mammals disappeared. Picture creatures like saber-toothed ...

Between 50,000 and 10,000 years ago, many of the world's largest mammals disappeared. Picture creatures like saber-toothed cats with 7-inch fangs and ...

Between 50,000 and 10,000 years ago, many of the world’s largest mammals disappeared. Picture creatures like saber-toothed ...

Does an elephant really need to be that massive? Why aren’t there any giant insects? Why did animals in New Zealand evolve to ...

Artistic reconstruction of a dire wolf. You may have seen them in Game of Thrones, but dire wolves aren’t fantasy beasts.

Some cars that have preserved the majority of their design for 20 years (or more) include the Chevrolet Express, Jeep ...

THE LONGEST TRAIL OF FOSSIL FOOTPRINTS EVER FOUND TELLS THE STORY OF A MOTHER'S URGENT JOURNEY. Researchers at White Sands ...