540,000-year-old shell carvings may be human ancestor's oldest art

December 4, 2014 1:50 PM

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Researchers focused on engravings made on the shell, and drew a cartoon to help people visualize the carvings. Perhaps Homo erectus used a sharp point, such as a shark's tooth, to make the etching, the researchers said. (Joordens et al. | Nature)

The ancient, big-bodied relatives of modern-day humans not only ate freshwater shellfish, but engraved their shells and used them as tools, a new study finds.

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