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Sharks rest in an approximation of what is termed sleep in land animals, though they do it with their eyes open. However, some sharks are nocturnal, which means they are active at night and rest during the day, and other... More »

www.reference.com Pets & Animals Marine Life Sharks

If you are attacked by a shark, it is important to fight back and get out of the water as soon as possible, but there are also important tips to learn to avoid a shark encounter. Sharks generally don?t like to eat humans... More »

www.reference.com Pets & Animals Marine Life Sharks

Sharks defend themselves by utilizing their natural abilities, including their intelligence, heightened senses and strength. Another effective defense ability is their speed, as sharks are fast swimmers. More »

www.reference.com Pets & Animals Marine Life Sharks
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Sharks interact with a variety of different animals in their habitat, as they are predators, prey and hosts for a variety of other species. While some sharks reach large sizes and as adults are apex predators that fear n... More »

www.reference.com Pets & Animals Marine Life Sharks

Sharks hunt for their food by using what is known as the Lévy walk. The shark swims along a route based on a complex mathematical pattern, similar to a type of fractal. These routes increase the shark's chances of findin... More »

www.reference.com Pets & Animals Marine Life Sharks

The cookie-cutter shark spends most of its life at the bottom depths of the sea but will swim closer to the surface to seek prey at night. These sharks live in the warmer waters near the equator. More »

www.reference.com Pets & Animals Marine Life Sharks

Sharks do not sleep in the same manner most other animals do, instead having split periods of rest and activity, according to the Florida Museum of Natural History. Many species of shark must maintain movement in order f... More »

www.reference.com Pets & Animals Marine Life Sharks