Crocodiles and Alligators

Topics: Alligator, Alligatoridae, Chinese Alligator Pages: 2 (602 words) Published: April 28, 2013
Crocodiles and alligators are large, frightful-looking reptiles. They are classified as reptiles because they have tough, scaly skin and are cold-blooded. This means their body temperatures become warmer as the air temperature rises and colder as the air temperature falls. Both crocodiles and alligators bury their eggs in sand or mud until their babies hatch. Very young crocodiles and alligators eat worms and insects. Adults eat mammals and are even known to attack humans. Crocodiles and alligators swim by sweeping their tails from side to side in the water. Because they need air to breathe, the tips of their noses and their eyes can always be seen outside of the water. How can you tell a crocodile apart from an alligator?

The main difference is that a crocodile has a narrow snout that comes to a point at the tip, and the fourth lower tooth is always visible even when the crocodile’s mouth is closed. An alligator, on the other hand, has a broad, blunt snout. Its fourth lower tooth cannot be seen when the alligator’s mouth is closed. Another difference between crocodiles and alligators is their habitat. Crocodiles are found near swamps, lakes and rivers in the tropical areas of Africa, Australia, Asia, Madagascar, and South America. Alligators are only found in two freshwater locations: The American Alligator can be found in the southeastern United States from North Carolina to Florida and west to Texas. The Chinese Alligator lives in the Yangtze River Valley in China. In addition, alligators are less aggressive and move more slowly than crocodiles. They are also not as large. Crocodiles are known to have grown as long as 23 feet. Alligators grow to be about 15 feet long. Cocodrilos y caimanes son reptiles de gran tamaño, de aspecto temible. Están clasificados como reptiles porque tienen difícil, la piel escamosa y son de sangre fría. Esto significa que su temperatura corporal se calientan a medida que aumenta la temperatura del aire y más frío que la...
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