Marsupial Lion

Flash, Persist
Pound for pound, Thylacoleo carnifex had the strongest bite of any mammal species living or extinct; a T. carnifex weighing 101 kg (223 lb) had a bite comparable to that of a 250-kg African lion, and research suggests that Thylacoleo could hunt and take prey much larger than itself. Larger animals it may have hunted include Diprotodon spp. and giant kangaroos.