Senin, 15 September 2008

da' SHARK

The special characteristic of a shark is their cartilaginous bones. The cartilaginous bones make them move easily on the water. The other special characteristic is their sandpaper-like skin. The skin helps the shark to defend itself from craggy corals and poisonous surgeons. Their teeth are specially designed to bite off flesh. A shark can have 3000 teeth in a lifetime. The Great White, Tiger Sharks and Bull sharks are the most fearsome fish. They eat dolphins, seals, fish and mostly anything, except poisonous creatures. A shark can live up to 60 years old, but the whale shark can live up to 100 years. The shapes of sharks’ teeth have many variations. The Great White’s teeth are shaped like a razor knife. It can easily cut off a seal’s flesh. The Megalodon is an ancestor of the Great White from the Pliocene Period. The Megalodon’s teeth are 40 centimeters long, for a 40 feet body, while a great white’s teeth are 15-20 centimeters long. There are 350 known species of sharks. There are about 100 shark attacks every year. Sharks attack people when people disturb them.


Jakarta, 30th July 2008
Charisma Winarga Rochadi

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