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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 »

www.reference.com Pets & Animals Marine Life Sharks

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 »

www.reference.com Pets & Animals Marine Life Sharks

Sharks are fish, but they belong to the group called Chondrichthyes, or cartilaginous fish, which is a different scientific group than most types of fish. Common fish, such as tuna or salmon, all belong to the group Oste... More »

www.reference.com Pets & Animals Marine Life Sharks
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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 »

www.reference.com Pets & Animals Marine Life Sharks

There are not any animals or predators who eat adult hammerhead sharks. Larger sharks may prey on injured or young hammerhead sharks. More »

www.reference.com Pets & Animals Marine Life Sharks

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

The great white shark is an apex predator, and as such, healthy adults of the species have no natural predators. Only one real threat faces the great white shark: humans that accidentally catch them, illegally poach them... More »

www.reference.com Pets & Animals Marine Life Sharks