At first glance, this mammal looks like a horse gone terribly wrong. But, in reality, Chalicotherium is far from a botched ...
A fossilized foot discovered in Ethiopia and left unclassified for over a decade has now been linked to a little-known human ...
Based on the skeletal evidence, the researchers realized they had discovered a true hybrid of ape and human. The forearms ...
This ancient, leg-bearing snake is rewriting the story of how serpents slithered, and sometimes walked, their way through ...