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Sharks: Body PartsIf you look at a shark, you will see it has a number of special adaptations that allow it to fit into an ocean environment. A shark has fins and a streamlined body that help it swim through water.
It has gills, which take in oxygen directly out of the water. Because of its gills, sharks can stay underwater and not have to come to the surface to breathe.
Sharks also have a tremendous number of sharp teeth, which make them fierce predators. In fact, if a shark accidentally breaks a tooth while chomping down on something, the tooth is almost immediately replaced by another tooth growing in the jaw.
With all these special adaptations, sharks do really well in the ocean, but it would be very hard for a shark to survive in the Sahara Desert!
