Here's why:
* Dietary Needs: Leopard seals are apex predators in their Antarctic ecosystem. They need a high-protein diet, and other seals provide a readily available and nutritious food source.
* Hunting Style: Leopard seals are powerful swimmers and hunters, equipped with sharp teeth and a strong bite. They often ambush their prey, dragging them underwater to drown.
* Size and Strength: Leopard seals are significantly larger and stronger than other seal species, giving them a clear advantage in a fight.
While leopard seals primarily prey on other seals, they also eat fish, penguins, squid, and even birds. However, their reputation as the "killer seal" comes from their hunting of fellow pinnipeds.