New model suggests early humans lost fur after developing bipedalism

(PhysOrg.com) -- Two of the most basic questions in the study of human evolution revolve around why early people started walking around on two feet instead of four and why they lost their fur, especially in light of the fact that most other primates have kept their coats, and still make extensive use of their hands in walking and especially so, when running. Some have postulated that early hominins began walking upright as a means of helping them keep cooler.

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