The chin is the forward pointed part of the anterior mandible (mental region) below the lower lip. A fully developed human skull has a chin of between 0.7 cm and 1.1 cm.

1 day ago · Humans are the only primates with a chin, leaving biologists to wonder why we acquired this unique feature. According to a new analysis of head anatomy in apes, it probably didn’t evolve for a ...

Aug 24, 2025 · The chin is the distinct, forward-projecting part of the human face located at the bottom of the lower jaw. It is a defining feature of modern humans, setting us apart from other …

5 days ago · Only Humans Have Chins — and They Emerged as an Evolutionary Accident Learn how the chin became an evolutionary byproduct that's unique to humans.

5 days ago · The monumental depiction of a man hunched forward, right hand resting against his chin, is synonymous with humanity’s capacity for deep contemplation, abstract thinking, and self-reflection.

Jan 24, 2026 · The chin is one of our most familiar features, yet scientists still debate why we evolved it. Here’s a breakdown of what we know about it so far.

11 hours ago · To investigate theories of the evolution of the chin, researchers from the University of Buffalo examined gene sequences involved in the development of the head and jaw for evidence of …

Oct 23, 2025 · The chin is a familiar feature of the human face, serving as the defining point of the lower jaw. This bony prominence is a characteristic of human anatomy that sets Homo sapiens apart from …

Dec 31, 2024 · The chin provides structural support to the lower face and serves as an attachment site for muscles involved in facial expressions, speech, and chewing. Its shape and size contribute …

6 days ago · New analysis led by a UB researcher suggests the distinctly human chin is a byproduct of other evolutionary developments, findings that provide a more holistic understanding of the human …