By looking at the structure and size of the keratin sheaths and comparing them to the keratin armor of modern animals, like ...

Imagine a world where giant insects and bizarre creatures ruled the land—a world steamy, lush, and alien, teeming with life ...

Long before the first dinosaur hatched, Earth's ancient life was already thriving. There were bizarre sea creatures and lumbering plant-eaters that ruled prehistoric landscapes for hundreds of ...