People who live in this desert have evolved the ability to drink arsenic
February 23, 2017, 7:28 p.m. by Bryan Nelson
Humans are still evolving, and in some pretty surprising ways.
Fall in love with these wise, joyful 100-year-olds
February 8, 2017, 12:33 p.m. by Mary Jo DiLonardo
Centenarians share their secrets to longevity and happiness.
Breakthrough studies may finally explain why we sleep
February 6, 2017, 10:49 a.m. by Bryan Nelson
All animals need to sleep, but why? It's one of the great puzzles of biology, and it might finally have a solution.