Blue Whale

As the largest animal to have ever existed, the blue whale's strength is measured on a colossal scale. While its power isn't used for combat, its sheer mass—up to 200 tons—requires immense muscular force simply to move. Its tail, or fluke, generates a staggering 60,000 newtons of force, propelling its enormous body through oceans with powerful grace. This titanic strength allows it to undertake epic migrations and engage in deep dives, sustaining a body that is the most powerful biological engine on the planet, a true leviathan of the deep.