17-million-year-old ape teeth reveal insights on early human evolution

17-million-year-old ape teeth reveal insights on early human evolution

The timing and intensity of the seasons shapes life all around us, including tool use by birds, the evolutionary diversification of giraffes, and the behavior of our close primate relatives.

Fossilized jaws from the 17 million-year-old Kenyan ape Afropithecus turkanensis. Tanya M. Smith/National Museums of Kenya, Author provided

Some scientists suggest early humans and their ancestors also evolved due to quick changes in their environment, but the physical evidence to test this idea has been elusive – until now.

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