When you see a beaver walking on 2 legs it doesnt mean its posessed.(doesnt mean its not) It could be,that hes got his front feet into beaver traps.If the trapper doesnt put them deep enough to get a back foot catch,hellget a front foot,those big traps,and fine bones will mash in a hurry.I see tho and three leged beaver from time to time.Ive never seen one walk upright,mine are usually dead when i find em.