Killer whales rarely risk hunting leopard seals - Antarctica's second-top predator. Killer whales rarely risk hunting leopard seals, Antarctica's second-top predator. But when reinforcements appear, ...

Leopard seals are an abundant species of predator in Antarctica. These large, carnivorous sea mammals live in the water and around the ice of one of the most unfriendly and harshest environments on ...

With killer whales in pursuit, the seal clambered out of the water and onto a swimming platform at the stern of the boat.

Think that seals are cute and cuddly -- if a little slippery? Think again. "Mutual of Omaha's Wild Kingdom" takes a trip into the under-ice world of leopard seals at 7 tonight on the Animal Planet.