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建立人际资源圈Great_White_Sharks
2013-11-13 来源: 类别: 更多范文
Great White Sharks
The Great White
The official name for the Great White Shark is Carcharodon carcharias. It is in kingdom-animalia, phylum-chordata, subphylum-vertebrata, order-lamniformes, family-lamnidae. The Great White Sharks body can grow from 4 ft to 23 ft. The female shark tends to be larger than the male. Its skeleton is all cartilage and 63% of the body is muscle. These sharks are known for predatory behavior, and can have as many as 20 rows of sharp teeth. Only a few species, including the White, the Mako, and the Tiger shark, have the large fearsome teeth popularly thought of as the typical sharks. The Great White Shark can reach speeds of up to 30 MPH.
Sharks are sensitive to light and can detect objects even in murky water. Some sharks have a mirror like layer under the retina that allows more light into the eye. Sharks do have ears, but the role of hearing in the sharks location of prey is not well understood yet. Sharks have a lateral line, or lateralis system, which helps them detect sound waves and disturbances in the water. This system consists of a series of thin canals, filled with water that runs along the side of the body. The
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