Chins are for humans, only. #throwbackthursday #shorts #science #scishow

The video explores the unique feature of the human chin, which is not found in other animals or extinct relatives. Various hypotheses are discussed, including its role in speech, biting, and attraction. However, none of these theories hold up under scientific scrutiny. The current scientific consensus suggests that the chin may be a spandrel, a trait with no inherent benefit that arose as a side effect of other evolutionary changes. The challenge remains to identify what those changes might be.

What new insight or understanding did you gain from this video?