heres the proof. A hyena komodo dragon mix
all you have to do is open the file that has its animations (the .bfm) and replace the animals code name with a different animals animation files. Just dont change the very top line (.nif) and the grapg name thing.
NOTE: It doesnt always look like an actual animal. Sometime you may get a bizaree mass of limbs and whatnot.
TRY SWITICHIN ANINMAL'S ROLES, LIKE IF YOU MIXED A HYENEA'S ANIMATIONS WITH A KOMODOS, MIX A KOMODOS ANIMATIONS WITH A HYENAS. its different.