The legendary Yeti may be a bear. Brian Sykes, an emeritus professor at Oxford University, tells the Associated Press that previously unidentified hair samples taken from what were thought to be Yetis appear to be genetically related to ancient polar bears.

In other parts of the world there are also stories of large, hairy, ape-like creatures that are called, alternatively, Bigfoot or Sasquatch.

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In Science this week: gene linked to expansion of the human neocortex, and more.

The National Institute of General Medical Sciences director says changes the agency made have allow it to boost success rates.

Ancient DNA indicates Stone Age, hunter-gather inhabitants of Britain imported wheat.

Joel Achenbach explores at National Geographic why people find science difficult to believe.