• Great white sharks off the coast of Seal Island, Africa, are known to jump almost 10 feet (3 meters) in the air to catch unsuspecting seals ... or anything else, for that matter.
• Sharks living in frigid waters can heat their eyes using a special organ next to a muscle in their eye socket. This ability enables them to keep hunting their prey in extreme temperatures.
• Every once in a while, a female shark can reproduce without any contact from a male, an act known as parthenogenesis.
• Almost 50 different species of sharks have light-emitting organs called photospheres. Sharks use the light that comes from these organs for camouflage and to attract mates.
• Sharks respond to a sound known as a "yummy hum." It's not an actual hum, though. It's an infrasonic sound (one that's too low for humans to hear) that injured fish make, drawing sharks to an easy meal.
• The average shark lives to be 25 years old, but some can get as old as 100!
Learn more about sharks.
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