How the whale got its teeth

Whales are mammals, but they don't look like the mammals living around us, as they have a triangular fluke for tail, no hind legs and no body hair. And inside their mouths, their teeth are unfamiliar too – being much simpler ...

Early Human Skulls Shaped for Nut-Cracking (Video)

(PhysOrg.com) -- New research conducted in part by researchers at The George Washington University has led to novel insights into how feeding and dietary adaptations may have shaped the evolution of the earliest humans.