University of Edinburgh scientist Hannah Long and colleagues show how a region of Neanderthal DNA is better at activating a jaw-forming gene than the human counterpart, revealing one potential reason for Neanderthal’s larger lower jaws.

University of Edinburgh scientist Hannah Long and colleagues show how a region of Neanderthal DNA is better at activating a jaw-forming gene than the human counterpart, revealing one potential reason for Neanderthal’s larger lower jaws.