Douglas McIntyre and David Callaway, Editor-in-Chief at Climate Crisis 24/7, discuss the alarming prediction that human ...

Around 66 million years ago, a six-mile-wide asteroid hit Earth, triggering the extinction of three-quarters of all living ...

If Yellowstone is dangerous now, it’s a cakewalk compared to the Pleistocene age where humans had to contend with mammoths, ...

Scientists have successfully extracted ancient proteins from two-million-year-old teeth, a breakthrough providing previously unobtainable details on ...

Researchers analyzed fossils and DNA to get a big-picture view of sloth evolution and determine what drove their immense size ...

An ancient granite pebble included indentations resembling a face, its nose a red dot. A study says it may have had symbolic ...

But as the planet cooled again, sloths began to bulk up. The largest ground sloths emerged during the Ice Ages. Big bodies ...

Fossils discovered beneath the Madura Strait in Indonesia reveal a previously unknown population of Homo erectus inhabiting ...