Humans broke one of evolution’s basic rules by losing fur — and survived

For most mammals, fur is essential for survival. Humans lost it anyway and didn’t just survive, they adapted. Fossil and biological evidence shows this wasn’t accidental but a major evolutionary shift, one that reshaped how our bodies work and quietly set humans apart from every other primate.

Humans broke one of evolution’s basic rules by losing fur — and survived
For most mammals, fur is essential for survival. Humans lost it anyway and didn’t just survive, they adapted. Fossil and biological evidence shows this wasn’t accidental but a major evolutionary shift, one that reshaped how our bodies work and quietly set humans apart from every other primate.