HumansFossil proteins may soon reveal how we're related to AustralopithecusAustralopithecus came before us, but that doesn't tell us which specific individual species is our ancestor. The fossil record is spotty in places, but the latest finds could give us enough clues to pin down how we are linked 51¶¯Âþ
TechnologyHigh-tech archaeology shows we aren't the first to endure hard times The discovery of ancient cities in Asia and the Americas point to earlier bouts of social and climatic upheavals. The good news is that humanity survived, says Annalee NewitzComment