Divers in Florida’s Steinhatchee River stumbled upon hundreds of pristine fossils from an obscure Ice Age period, including ...

In Fayum, Egypt, where now lies a barren desert, a lush forest once stood, teeming with life. Paradise for all creatures ...

With sharp catlike teeth and a doglike body, ancient carnivores called hyaenodonts were once at the top of the food chain, but the entire lineage was wiped out about 25 million years ago.