A key set of data could shore up the case for a purely animal origin. So why aren’t scientists sharing it?

Secretary Jewell seems to be willfully ignoring a report by the National Academy of Sciences. Why?

Some are trying to turn the lab-leak theory into a potent political weapon.

Revered as a national symbol, reviled as an actual bird

Five neuroscientists argue that fancy new technologies have led the field astray.

On a quest to make sense of what was happening to her body, the author Darcey Steinke sought guidance from female killer whales.

The creatures eat harmful algae, but they're disappearing. Scientists are trying to grow more of them.