Cleaning and cooling: yawning’s possible purpose
New evidence says you don’t wait to exhale as your yawns chill and flush the brain
The Most Famous Human Lie Detector
Haunted by the death of his mother, Paul Ekman was driven to become the world's premier expert on emotions. Here is his life story
Fatty protein cookies help blood vessels regrow
Eri Takematsu’s family endures some chronic diseases. Now her research now addresses how those could be resolved
Some fish can do arithmetic
Work by Vera Schluessel helps chalk up another victory for some discounted deep thinkers
How supermountains powered evolution
Ziyi Zhu wanted to know when these ranges formed, but she also stumbled upon their influence on life on Earth