A. afarensis didn’t roam alone.
A team of researchers recently went back to the site to investigate further — discovering the prints may be a sign of a totally unknown hominin species.
In a Nature column, paleoanthropologist Stephanie M. Melillo notes the footprints have a mix of human and chimp-like features we don’t see in any living creature today.
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“The footprints themselves are oddly wide and short, and the feet responsible for their creation might have had a big toe that was capable of thumb-like grasping, similar to the big toe of apes.”