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Friday, January 11, 2019

Sharks

There are over 350 different kinds of sharks.  The whale shark is the largest. It is as big as a whale. The pygmy shark is the smallest. It is only about seven inches long.
All sharks live in the ocean. Which is salt water, but a few kinds have been found in the Mississippi river!
Sharks do not have bones. They have skeletons made of cartilage, which is the same thing your ears and nose are made of. A shark’s skin is made of spiky, hard scales. The jaws of a shark are the most powerful on earth. When a great white shark bites, it clamps down on its prey and thrashes its head from side to side .It is the deadliest shark.

Sharks eat fish, dolphins and seals. The tiger shark will eat just about anything. Some fishermen have discovered unopened cans of food, clocks, boat cushions and even a keg of nails inside tiger shark. Sometimes sharks even eat other sharks. For example, a tiger shark might eat a bull shark. The bull shark might have eaten a blacktip shark. The blacktip shark might have eaten a dogfish shark. So a tiger shark could be found with three sharks in its stomach!
Some sharks are very strange. The hammerhead shark has a head shaped somewhat like a hammer, with eyes set very far apart. A cookie cutter shark has a circular set of teeth. When it bites a dolphin or whale, it leaves a perfectly round hole in its victim. The saw shark has a snout with sharp teeth on the outside, which makes it look like a saw. The goblin shark has a sharp-pointed spear coming out of its head, and its ragged teeth make it look scary!
The mako shark is the fastest swimmer. Sometimes makos have been known to leap out of the water, right into a boat! These are just a few of the many kinds of fascinating sharks.

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