camilaorte camilaorte
  • 25-02-2014
  • Mathematics
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why do sharks not have swim bladder

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tavarezgiselle tavarezgiselle
  • 26-02-2014
Unlike bony fish, sharks do not have gas-filled swim bladders for buoyancy. Instead, sharks rely on a large liver filled with oil that contains squalene, and their cartilage, which is about half the normal density of bone.
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