Last WordThis week’s new questions Why didn’t our offspring evolve to let parents get more rest, and why don’t worms damage plants? Send us your thoughts and we will publish our favourites Regulars
HumansHomo erectus used two different kinds of stone tools Skull fragments from Homo erectus found alongside stone tools in Ethiopia suggest the ancient hominin used more tool technology than we thought ¿ìè¶ÌÊÓÆµ