As part of their research they studied more than 1 500 beads made of ostrich shell that were discovered in different locations.
They think prehistoric humans traded and exchanged these beads over many kilometres, creating a social network.
This story is from the 17 February 2022 edition of YOU South Africa.
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This story is from the 17 February 2022 edition of YOU South Africa.
Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 8,500+ magazines and newspapers.
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