Ancient tools found in North Africa could 'rewrite human origin story'

By Rob Picheta, CNN

Updated 1707 GMT (0107 HKT) November 30, 2018

This artist's illustration shows a young Purussaurus attacking a ground sloth in Amazonia 13 million years ago.
Photos: Ancient finds
This artist's illustration shows a young Purussaurus attacking a ground sloth in Amazonia 13 million years ago.
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This bundle of bones is the torso of another marine reptile inside the stomach of a fossilized ichthyosaur from 240 million years ago.
Photos: Ancient finds
This bundle of bones is the torso of another marine reptile inside the stomach of a fossilized ichthyosaur from 240 million years ago.
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Researchers uncovered the fossilized fragments of 200,000-year-old grass bedding in South Africa's Border Cave.
Photos: Ancient finds
Researchers uncovered the fossilized fragments of 200,000-year-old grass bedding in South Africa's Border Cave.
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Meet Sasha, the preserved and reconstructed remains of a baby woolly rhinoceros named that was discovered in Siberia.
Photos: Ancient finds
Meet Sasha, the preserved and reconstructed remains of a baby woolly rhinoceros named that was discovered in Siberia.
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Stone tools made from limestone have helped researchers to suggest that humans arrived in North America as early as 30,000 years ago.
Photos: Ancient finds
Stone tools made from limestone have helped researchers to suggest that humans arrived in North America as early as 30,000 years ago.
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This image shows both sides of the 1.4 million-year-old bone handaxe made from the femur of a hippopotamus. It was most likely crafted by ancient human ancestors like Homo erectus.
Photos: Ancient finds
This image shows both sides of the 1.4 million-year-old bone handaxe made from the femur of a hippopotamus. It was most likely crafted by ancient human ancestors like Homo erectus.
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