TIL humans are the only animal with a chin. We aren't sure why.
TIL humans are the only animal with a chin. We aren't sure why.
www.smithsonianmag.com A Chin-Stroking Mystery: Why Are Humans the Only Animals With Chins?
It's an evolutionary conundrum, and scientists are still divided over the answer
You're viewing a single thread.
153
comments
But why did we evolve a hook & loop clasp to hold the top of our skull closed?
I hear some people are born with just a solid skull with no hinges, it makes me so uncomfortable.
It was a defense against the now extinct Brain Scooping Gorilla
You've viewed 153 comments.