Researchers say recently discovered teeth come from a previously undiscovered species of Australopithecus, adding to our understanding of human evolution. Maybe you've seen the T-shirts or the mugs, ...

A new study, published on May 21 in the journal Nature, has revealed surprising information about the origins of human teeth. Our teeth evolved from the piercing “body armor” of extinct fish, which ...

An old, unusual tooth discovered in China reinforces the theory that Homo sapiens and an extinct human species, the Denisovans, swapped genetic material — and physical traits — thousands of years ago.