Leopard seals have a ferocious reputation as one of the top predators in the Antarctic ecosystem. They are infamously the “principal enemy of the penguin”, as immortalized in the film Happy Feet.

These effective predators live in frigid Antarctic and sub-Antarctic waters, where they also eat penguins ... seal's diet. Leopard seals are earless seals. They have long bodies (10 to 11.5 feet ...