Tiny skeleton from Indonesia’s Flores island is unique ancient species, insist researchers
Is pampered humanity getting steadily less intelligent?
Humans reached a peak of intelligence more than 2,000 years ago and it’s been downhill ever since, a scientist speculates
Christina Warinner: it’s a good thing our ancestors didn’t floss their teeth
What fossilised dental plaque can reveal about ancient humans’ diet, disease and environment could improve our future health