
A new study posits a very surprising answer to one of history's great mysteries -- what killed off the Neanderthals?
Could it be that they were unadventurous, insular homebodies who never strayed far enough from home?

A new study posits a very surprising answer to one of history's great mysteries -- what killed off the Neanderthals?
Could it be that they were unadventurous, insular homebodies who never strayed far enough from home?