LifeAll work and no play: Why Neanderthals were no Picasso Neanderthals had shorter childhoods than us, which profoundly affected their ability to make symbolic art, argues archaeologist April NowellOpinion
HumansPuzzles of evolution: Did we kill off Neanderthals? Humans are in the frame for wiping out the Neanderthals, but it's not an open-and-shut case Features