Beneficial mutations happen quite frequently, but the world changes too fast for them to stick.

Many scientists point to cultural evolution, the process by which knowledge, customs and technology spread over time. But ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. The story of how us humans—and other mammals—got our noses may have ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Scientists have uncovered new evidence suggesting that autism may have ...

The human body is a machine whose many parts – from the microscopic details of our cells to our limbs, eyes, liver and brain – have been assembled in fits and starts over the four billion years of our ...