Teeth are a really useful indicator of past environments. This is possible because teeth have biological rhythms and key events get locked inside them. These faithful internal clocks run night and day, year after year, and include daily growth lines and a marked line formed at birth.
A growing body of evidence shows that those at the bottom of the socioeconomic ladder are more likely to die prematurely than those at the top. The pattern isn't unique to humans – across many social animals, the lower an individual's social status, the worse its health.
You probably think of new technologies as electronics you can carry in a pocket or wear on a wrist. But some of the most profound technological innovations in human evolution have been made out of stone. For most of the time that humans have been on Earth, we’ve chipped stone into useful shapes to make tools for all kinds of work.
From the Field
Leakey Foundation grantee Rachel Bynoe is a paleolithic archaeologist researching the underwater archaeology of the North Sea in Happisburgh where recent discoveries have radically changed our understanding of the timing and nature of early hominin occupation in Britain.
From culture to warfare, from our diet to our politics, the study of wild chimpanzees continues to change the way we understand both human nature and the apes themselves.
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