Great White And Tiger Shark example essay topic

SHARKS There are more that 250 species of sharks, ranging from the harmless whale shark to the ferocious great white. I will describe the feeding habits and localities of the three greatly known to mankind: the great white shark (Carcharodon Carcharias), the tiger shark (Galeocerdo Cuvier i), and the bull shark (Carcharhinus Leucas). The great white shark, known as Car chardon Carcharias, feeds regularly on marine mammals, such as seals, sea lions, otters, dolphins, and whales. Samuel Gruber in Discovering Sharks writes that the great white consumes marine mammals when they come across a deceased one. Even though the great white has the reputation of a man-eater; they attack thinking that the diver or surfers on a short board are part of its natural prey. The San Francisco area is known as the great white capital, because of the "Red Triangle".

The red triangle is the breeding ground for its natural prey, seals and sea lions. The triangle's boundaries are north of Tamales Point, south of Monterey Bay, and west of the Farallon Islands, states Rodney Steel in the book Sharks of the World. The sharks also are found in quiet, shallow waters, along with in Australia. The tiger shark, known as Galeocerdo Cuivieri, feeds regularly on marine mammals also.

Tiger sharks do end up with curious articles in their stomach like license plates, lamps, and sheep. The tiger shark is a cannibalistic shark, which means it will attack its own kind when needed. Tiger sharks will feed on anything that their powerful jaws can crack. Tiger sharks are a worldwide terror of tropical and subtropical seas. They graze the Bahamas, Hawaii, Cuba, the Mediterranean, and any other warm waters. The bull, shark known as Carcharimus Leucas, are widely cannibalistic.

This means that they attack their prey when it is still alive. Also like both the great white and tiger shark, bull sharks hunt marine mammals. In Sharks and Other Dangerous Sea Creatures Idaz and Jerry Greenberg remark that bull sharks encounter a large number of people since they (bull sharks) inhabit fresh and salt water rivers and oceans. Bull sharks are found in the Pacific, Indian, and on both sides of the Atlantic Ocean. Bull sharks rarely are found far from the shore line. Bulls have traveled up the Mississippi, Zambezi, Amazon, Euphrates, and Tigris Rivers.

The Greenberg note that the bull shark was thought to being separate species until recently. In South Africa the bull shark is known as the Zambezi shark, one of the creatures that have been terrorizing the Natal Coast. The Great White, Tiger, and Bull sharks are the greatest threat to mankind. I have told you what they feed on and where they are located.

These are just the three most dangerous out of 250 species of sharks. Sharks are everywhere; you may be swimming with one every time you visit the beach without knowing it.

Bibliography

Ellis, Richard. The Book of Sharks. NY: Grosset and Dunlap, 1976 Greenberg, Idaz and Jerry.
Sharks and other Dangerous Sea Creatures. Miami: Sea Hawk Press, 1988 Gruber, Samuel H.
Discovering Sharks. NJ: American Littoral Society, 1991 Steel, Rodney.
Sharks of the World. NY: New York, 1995.