The human chin is uniquely human, and the assumption has always been that it must have evolved for a specific purpose, perhaps to strengthen the jaw during chewing or speech. After all, chimpanzees ...

The human skull has many components. In fact, in an average adult human, the skull combines 22 bones. One of these bones is the mandible, more commonly known as the lower jaw. Recognized as one of the ...

From the 20-foot-long jawbones of the filter-feeding blue whale to the short, but bone-crushing, jaws of the hyena and the delicate chin bones of a human, the pair of lower jawbones characteristic of ...