Unraveling the Enigma of Homo Naledi: A Journey to the Cave of Bones.

TL;DR
Paleontologist Lee Berger had to crawl through a narrow chute to uncover the secrets of Homo naledi, an ancient human relative. The fossils found in the Rising Star cave system reveal a primitive core with human-like extremities, suggesting that evolution is crafting humans from the outside in.
To solve the mysteries of Homo naledi, he returned to the 'cave of bones' National Geographic
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