Thumbs up (and over)

Thumbs up (and over)

Credit: Harvati et al., Current Biology

Dexterous thumbs – considered a hallmark of being human – were present two million years ago, according to a study published in the journal Current Biology.

This was around the time that more systematic tool production and complex cultural developments emerged and our large-brained Homo erectus ancestors appeared on the scene, highlighting the pivotal importance of thumb evolution.


Published by Cosmos.

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