Grizzly bear (ursus arctos horribilis) also known as the north American brown bear, a large carnivorous mammal, has a bite force of around 1160 psi, in terms of strength the grizzly bear can lift up to 500kg 0.8 times it's body weight. This one has claws that are four inches long and can hit with 600lb's of power in a paw swipe, this particular bear happens to be an aggressive male