They eat many species of penguins, weddell seals, crabeater seals, antarctic fur seals, seabirds, krill and fish . They may be eaten by killer whales.
Leopard seals are fierce predators.
When their mouth is open they look almost lizard-like. With their powerful jaws they hunt and eat many of the animals found in the Antarctic - from krill to other seals. The fur on their back is a dark gray to almost a bluish color. Although they are found mostly around the pack ice of the Antarctic and subantarctic islands, they have been found off the coasts of South America, Africa, New Zealand and southern Australia. Leopard seals are a noisy species making a variety of sounds below water.