In this video, Stephan Milo explains how Neanderthals dealt with the death of members of their groups.  Evidence shows that they often “de-fleshed” their dead and also potentially sometimes ate them.  Some Neanderthal burials have been found in caves, with about 30 sites existing worldwide that suggest Neanderthals buried their dead, however the rest of the about 500 known Neanderthals have not been buried.  Neanderthals didn’t start burying their dead until about 70,000 years ago, which corresponds to when humans starting doing it as well.