When the bison were exterminated from North America, indigenous populations lost an inch of height in just a generation.
Many of the boys in the choir had tics, leading the scientists to speculate that the repetitive movements may be related to motor learning.
Reanalyzed foot and handprints may date to thousands of years before many thought the roof of the world was settled.
The same system that rewards you for selfish actions also rewards you for generous ones.
Two new studies find that electronic device use near bedtime is linked with poor sleep in adults and children.