Why do we have chins? Researchers may finally know
Kendra Pierre-Louis: For Scientific American’s Science Quickly, I’m Kendra Pierre-Louis, in for Rachel Feltman. Most of us, if we think about chins at all, do so rarely. But it turns out that chins are an evolutionary clue. Among our primate kin, chins are a distinctly human trait, which raises a question: Why do we have…
