The professor says the body design of the creature made it a kind of jaw on legs.

VOA: special.2009.10.13

So, your tongue is closer to your jaw than it is to your hip in the body; so too in both the motor cortex and the somatosensory cortex.

所以相对于屁股,你的下巴在身体上距离你的舌头更近,而在运动皮层与感觉皮层上的位置,也是这样对应着的

耶鲁公开课 - 心理学导论课程节选

After a few weeks, doctors made Cleveland a new jaw out of hard rubber.

VOA: special.2010.06.24

Doctors removed some of President Cleveland's teeth and much of his upper left jaw.

VOA: special.2010.06.24

But his eyes were bright and his jaw firm.

VOA: special.2009.03.26