"I'm stunned." says Per Ahlberg of Uppsala University, who coordinated the study; "A single track-bearing slab, which one person can lift, calls into question everything we thought we knew about when ...

Indeed, since the 1980’s scientific investigations into the origin of tetrapods has exploded, and new discoveries are being made all the time. One new finding, just published in Nature, may even cause ...

Add Yahoo as a preferred source to see more of our stories on Google. An illustration of what the Amniote (early reptile) would look like from 350 million years ago. “I’m stunned,” Per Ahlberg, a ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Here’s what you’ll learn when you read this story: The common ancestor of all tetrapods (including humans ...

Add Yahoo as a preferred source to see more of our stories on Google. An illustration shows what researchers believe Tyrannoroter heberti looked like. - Hannah Fredd A chunky, squat creature that ...

A new fossil discovery in Cape Breton Island, Nova Scotia, is changing scientific views on early plant-eating animals. Named ...

An ancient aquatic predator resembling a giant salamander turned up in an African fossil deposit, suggesting unwritten chapters of how animals moved onto land. By Asher Elbein Some 280 million years ...