Salamander-like footprints preserved in sandstone have long fascinated Grand Canyon hikers and rafters. Insights from a new study of the track patterns intensify an old trackway mystery. But Noah’s Flood can help solve this mystery.
 

With a new addition to the category of “uniquely human features,” MIT neuroscientists discovered a feature of human—not animal—brain cells. Certain human brain cells have much longer extensions called dendrites, and this research team found a uniquely human reason for it.