Why don't Sharks have Bones? + more videos |
Автор: It's AumSum Time
Загружено: 2019-05-27
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Sharks belong to a special class of animals called Chondrichthyes. The skeleton of these animals is not made of bones, instead it is made of cartilage. Cartilage is the same stuff that our ears and nose are made up of, and it is due to this material that sharks are able to skillfully maneuver in water.
Do you know how?
Cartilage is less dense than bones. Hence, it is much lighter, making sharks weigh less and thus, helping them stay afloat. Also, as the cartilage is flexible, it gives shark the ability to swim quickly, catch its prey as well as conserve energy. Besides this, studies have shown that the skeleton made of cartilage heals faster than that made of bones. So, sharks are boneless.
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