The ratios of strontium isotopes in fossil shark teeth can be used to better understand how coastal environments evolved in ...

Paleontologists have discovered what they believe to be vomit from 66 million years ago.

sharks patrolled the oceans, eating sea lilies and disgorging. Professor Milan says it tells us something about who was eating who 66 million years ago. I guess that's called the cycle of life.

While Tyrannosaurus rex prowled the world above the oceans, gorging on other dinosaurs, sharks patrolled the oceans, eating sea lilies and disgorging. Professor Milan says it tells us something about ...

Scott Simon is one of America's most admired writers and broadcasters. He is the host of Weekend Edition Saturday and is one of the hosts of NPR's morning news podcast Up First. He has reported from ...