To other primates, humans must look extremely odd.
We are the only species with a general lack of fuzz, and yet for some reason, we have a whole bunch of hair sprouting from random spots on our body, like the summit of our heads.
This built-in sun-guard might seem like an obvious benefit to a generous mop, but science needs hard data. Researchers tested multiple different types of wigs on the manikin, including ones with straight hair, loose curls, and tight curls. The results, which are yet to be peer-reviewed but are publically available on the pre-publish server, suggest that any type of barrier on the top of the head reduces heat gain from the Sun and, in turn, the need to sweat.
France Dernières Nouvelles, France Actualités
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