Early human ancestors underwent significant physical transformations over millions of years. New research challenges the idea ...

Many of the body's biggest flaws are the result of evolution building on old designs instead of starting over. Our spine, ...

For years, the common belief among scientists was that human evolution had basically slowed to a crawl once we invented ...

A new analysis suggests the evolution of human body size was marked by a major turning point rather than gradual growth.

As early humans spread from lush African forests into grasslands, their need for ready sources of energy led them to develop a taste for grassy plants, especially grains and the starchy plant tissue ...

Changes in Earth's orbit have helped pace climatic change for millennia. Scientists are now trying to understand whether - and how - these changes remodeled the landscapes our ancient ancestors ...

An ancient skull unearthed in China’s Hubei Province may push back the emergence of the human species by 400,000 years Peerapon Boonyakiat/SOPA Images/LightRocket via Getty A human skull found in 1990 ...

An international study changes the view that exposure to the toxic metal lead is largely a post-industrial phenomenon. The research reveals that our human ancestors were periodically exposed to lead ...

Researchers discovered that autism’s prevalence may be linked to human brain evolution. Specific neurons in the outer brain evolved rapidly, and autism-linked genes changed under natural selection.