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.
Nariom@lemmy.world 2 days ago
maybe they inverted arms and legs? im not sure about mouse anatomy
Tlaloc_Temporal@lemmy.ca 2 days ago
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.