Curly hair may have evolved to protect early humans from the sun
In the first study to look at the evolution of hair types, researchers found tightly coiled hair provides a trade-off of shielding the head from the sun while minimising unwanted insulating
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In the first study to look at the evolution of hair types, researchers found tightly coiled hair provides a trade-off of shielding the head from the sun while minimising unwanted insulating
