Sharks are apex predators that have no natural enemies; however, humans are predators of sharks, with an estimated 30 to 100 million sharks are killed every year by fisherman. This has caused many species of sharks to be... More »

The great white shark does not have many predators in the ocean because it is at the top of its food chain; however, it is equipped with many tools to fight off threats, including powerful jaws, sharp teeth and strong ey... More »

Predators that prey on great white sharks include killer whales, or orcas. Great white sharks also prey on other smaller great white sharks. Humans also can threaten the great white shark when they catch it in nets and s... More »

Though sharks are considered apex predators, they are often eaten by humans and are sometimes eaten by killer whales. Shark embryos from different fathers will also eat each other in utero, with the largest embryo of the... More »

Cookiecutter sharks, also known as cigar sharks, are unusual, small predators that commonly attack much larger prey. Their upper and lower teeth are quite different, with the hook-like upper teeth being much smaller than... More »

www.reference.com Pets & Animals Marine Life Sharks

Over the years, experts have been trying to determine exactly why great white sharks attack humans. Three of the main theories include the investigatory theory, mistaken identity theory and social-defensive theory. More »

Male sharks are referred to as bulls or simply as males. Female sharks are only referred to as females, and the offspring of sharks are called pups. More »