We have a fossil closer to our split with Neanderthals and Denisovans

A group of 773,000-year-old hominin fossils from Morocco may shed new light on when our species branched off from the ancestors of Neanderthals and Denisovans.

A team of anthropologists recently examined a collection of fossil hominin jawbones, teeth, and vertebrae that belong to hominins who probably lived very close in time to our species’ last common ancestor with Neanderthals and Denisovans. They reveal a little more about a murky but important moment in our evolutionary history.

From predators’ quarry to rock quarry

Archaeologists unearthed the 773,000-year-old bones just southwest of Casablanca in a cave aptly named Grotte à Hominidés. They’re just fragments of what used to be hominins: an adult’s lower jawbone, plus the partial lower jaw from another adult and a very young child, along with a handful of teeth and vertebrae. A hominin femur from the same layer of sediment in the cave has clear gnaw marks from sharp carnivore teeth, offering a chilling clue about how the bones got there.

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