The lower jaws of lizards, birds, fish and even dinosaurs are comprised of multiple bones per side. Yet mammals diverged from all other vertebrates and settled on just one bone, repurposing the extra ...

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 ...

The newfound structure sits within the masseter, a key muscle for chewing. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Scientists recently ...

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 ...