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We’re the only primate without a coat of thick fur. It turns out that this small change in our appearance has had huge consequences for our ability to regulate our body temperature, and ultimately, it helped shape the evolution of our entire lineage.

Thank you to Julio Lacerda (  / juliotheartist  ) for the excellent Australopithecus and persistence hunting Homo erectus illustrations!

Produced in collaboration with PBS Digital Studios:    / pbsdigitalstudios  

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References: https://docs.google.com/document/d/1l...