A major evolutionary theory says most genetic changes don’t really matter, but new evidence suggests that’s not true. Researchers found that helpful mutations happen surprisingly often. The twist is ...

In paleoanthropology, a rare, nearly-complete skeleton can rewrite entire chapters of the human origin story. The “Little ...

The search for life on Earth is speeding up, not slowing down. Scientists are now identifying more than 16,000 new species ...

A variety of studies are showing that rough-and-tumble play is important for animals and kids alike.

Scientists studying fossils from Ethiopia’s Afar Rift have uncovered evidence of another early human species which lived around the same time as Lucy, roughly 3.4 million years ago.

From the plains of the Pleistocene to the age of smartphones, the human brain has evolved but never forgotten its roots. Many of our instincts and quirks are echoes of our ancestors.