small slit under bp's head

ok i just fed my bp a f/t small mouse he used to eat f/t fuzzy and when i fed him i looked under his head and he has a small slit, theres no blood coming out. i just want to know if its supposed to look like that when hes eating or should i be worried?

Yes that is supposed to be there.:)

It allows their bottom jaw to stretch.

whew ok good was starting to get worried thanks alot

X3 very normal but a little unerving the first time you notice it :)

Lol, it does look kind of scary, but it's completely normal!

Yup lol its actually a flap of skin lol its what allows them to open their jaw so far without ripping their face LOL

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Its their predator feature...lol