THE source of the Nile river remained a mystery to Europeans for thousands of years. Now another puzzle has finally been solved: the source of the river in deep time.
The Nile had become a major river by around 31 million years ago, reports the first team of geologists to put a firm date on its origin. “The Nile’s the longest river in the world, and being able to figure out when it started is, for me, really exciting,” says Yani Najman at Lancaster University, UK, who led the team.
Rivers carry sediment from their …
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