prior to andalites having the morphing technology or in the cases where they can't morph like that one dude in that one book (ya ya i don't remember his name or the book number whatever) - if an andalite lost a hoof or broke a leg, what would happen?
if you look at hoofed mammals, they can't walk on three legs like mammals with paws. trying to imagine an andalite with a broken back leg, maybe. but due to the weight distribution their humanlike torso provides, i would think walking would be neigh impossible with a broken front leg.