Mouth Update

I'm trying to work out the mechanics of rabbits' lips when they open and close their mouths. After looking up pictures, I can assuredly say that rabbit mouths are TERRIFYING! They seem very cute and cuddly when closed, but when opened wide the lips SPLIT right up to the nose! It looks like an unmasked Predator! Let's compare:

Cute, unassuming desert cottontail:


Then suddenly.... ROAR!

Predator for comparison:

The lip split under the nose:


"Oh my...."