For decades, scientists believed climate was the main force guiding where early humans lived across Africa. Shifting rain ...

Actress Paget Brewster shared her thoughts about whether or not former costar Shemar Moore would return to 'Criminal Minds: ...

How come our universe is full of disorder, when all elementary particles appear to follow strictly ordered laws of physics? And are there organizing principles behind disorder and apparent chaos?

Galápagos plants show repeated evolution and emerging species, emphasizing evolution’s flexibility and active role today.

Researchers have uncovered a remarkable fossil site in a remote part of Canada's Northwest Territories, offering ...