Found a cave that had 3 of these guys 2 were lvl 40, and one was lvl 280. One got mad after I killed a wolf so I had to eliminate it. The others ran into the water and never came out. I waited for 30 minutes. Nothing, found the lvl 40 had drowned and the 280 somehow got stuck in a wall. Unfortunately I couldn't tame it so I had to kill it. T_T