Researchers have put forth a theory that humans are no longer subject to natural selection for evolution, but instead that ...

Scientists say some of the traits that define modern humans may have evolved only after long-standing biological and cultural ...

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

The uvula is nearly unique to humans among mammals. An evolutionary biologist unpacks competing theories for why we evolved ...

The story of Charles Darwin’s life. His theory of evolution changed the way we understood our place in the world.

How did humans become human? Understanding when, where and in what environmental conditions our early ancestors lived is central to solving the puzzle of human evolution. Unfortunately, pinning down a ...

Bonobo male Kikongo making 'happy' grin faces at the Lola ya Bonobo Sanctuary, Democratic Republic of Congo, October 2010 ...

When humans and nonhuman animals dramatically decrease their ability to respond (for example during sleep or coma), they are said to be "semi-conscious" or even " unconscious." In a similar way, as ...

For decades, one idea has shaped discussions about human evolution and birth: humans endure unusually difficult childbirth ...