Indoor temperature and moisture in the U.S. is closer to climates in Africa than to anywhere else on Earth.
New research suggests the idea of stone megaliths was spread by a mysterious seafaring culture from northwest France.
A genetic variant linked to cold sensation and migraine headaches may have helped people survive in northern climates.
New theory views lullabies as a signal to babies that parents are giving all they can.
New research changes our understanding of how humidity influenced the evolution of the human nose.
Police in Ferguson have used an ancient tactic.