Sea reptile's tooth shows that mosasaurs could live in freshwater

Mosasaurs, giant marine reptiles that existed more than 66 million years ago, lived not only in the sea but also in rivers. This is shown by new research based on analyses of a mosasaur tooth found in North Dakota and believed ...

The fossil bird that choked to death on rocks, and no one knows why

A fossil only tells part of the story. When an animal's body is preserved as a fossil, there are often pieces missing, and even a perfectly preserved body doesn't tell the whole story of how that animal behaved, how it lived, ...

page 8 from 40