That is so weird. I have dogs and they push their lips back like the xenomorph.
<span>Being that cats are flexible they probably do that like you said, to get away or something.
</span>A Guess:
<span>When they are being attacked , the kick frees them from their attacker.
</span>
I didn't even know they did that.
<span>I guess they're just dysfunctional.
</span>
<span>My cat does it .</span>
Answer:
the vental cavity................. .....
My answer if I had to choose is.....
B