HumansAnkle fossil suggests our ancient ancestors leapt like acrobats A 52-million-year-old ankle bone hints at first primates jumping rather than clambering from tree to tree – but what drove them to evolve this way is a mystery News
HumansIt only takes a few gene tweaks to make a human voice Our capacity for complex speech might come from tiny tweaks to existing monkey genes that gave us flatter faces and more refined larynxes News