A new study theorizes that evolution ticks at different speeds, especially when a big group of organisms first appears.

This has been quite the wild year in human evolution stories. Our relatives, living and extinct, got a lot of attention—from ...

A genomic atlas of Nematostella vectensis reveals how primitive animals created multiple cell types millions of years ago, ...

Jawbones and other remains, similar to specimens found in Europe, were dated to 773,000 years and help close a gap in ...

For more than a century, biologists assumed that the bony plates embedded in the skin of lizards – like natural chain mail – ...