Would it be a simple change of bone shape? Muscles? Keep in mind, this adaption is not for swallowing bigger food, as the human throat path makes that difficult, but is instead is for intimidating predators.

  • $\begingroup$ What research have you done thus far? $\endgroup$
    – KeizerHarm
    Oct 13, 2021 at 7:59
  • $\begingroup$ Human jaws are attached directly to the braincase, which inhibits movement, while snakes have a whole extra hinge. I just don't know if I can copy and paste the shape of a snake's jaw onto a human and have it work. $\endgroup$ Oct 13, 2021 at 8:03
  • $\begingroup$ Personally, I prefer to have a stronger bite against a predator (and the jaw joint as it is helps this a lot); donning on a mask to make my face scarier is easy enough. But what do I know, I'm only a human :) $\endgroup$ Oct 13, 2021 at 9:10

1 Answer 1


I think the simplest adaptation would be to have the jaw mimicking the one of snakes, where the quadrate bone act as a hinge between the skull and the lower jaw.

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Additionally, having the lower jaw not fused but held by a ligament would allow for further spreading.

  • 1
    $\begingroup$ You should add something about fixing the fused jugal bar ("zygomatic arch") of humans, and otherwise adapting the upper jaw to be able to move again. $\endgroup$ Oct 14, 2021 at 18:54
  • $\begingroup$ IVE RETURNED WITH A REBUTTAL. 21 days late I know, but humans do not in fact have a quadrate bone! Now I have no idea what to do with that info. $\endgroup$ Nov 3, 2021 at 20:13

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