Great white sharks are apex predators, so they have no natural predators in the ocean. However, humans pose a threat to their numbers when they accidentally kill them after the sharks get caught in fishing trawlers and longlines, when they poach them and hunt them illegally or when they get entangled in nets.
While the great white shark is never prey, it preys on other sharks, rays and fish. Adult great whites eat small whales, seals, sea lions, sea turtles and otters. Great whites will also eat carrion, which is dead animals floating in the water. The great white does not chew its food, but instead uses its 3,000 razor-sharp teeth to tear the food into mouth-sized bites.