I think most if not all tetrapods should have the 1-2-3-4-5 hierarchy for their arms and legs (although the later branches often fuse together).
I just checked, and mice have the 1-2 pattern for front and hind limbs. It’s just the arms that are weird, but this mouse’s arms have always been weird.
Edit: I just saw the legs again, those are definitely screwed up too.
what’s with the femur? is it on purpose?
maybe they inverted arms and legs? im not sure about mouse anatomy
I think most if not all tetrapods should have the 1-2-3-4-5 hierarchy for their arms and legs (although the later branches often fuse together).
I just checked, and mice have the 1-2 pattern for front and hind limbs. It’s just the arms that are weird, but this mouse’s arms have always been weird.
Edit: I just saw the legs again, those are definitely screwed up too.