zoo crocodile |
twin crocodile |
crocodile hunter |
couple crocodile |
Description
Crocodiles range from 5 to 25 feet (1.5 to 7.5 m) in length. A crocodile has a long, pointed snout. Some of its lower teeth are exposed when the jaw is closed. It is olive-green with dark crossbands on the back and tail. The skin is protected by large bony plates. The crocodile has a heavy tail, short legs, and webbed hind feet.
The crocodile has protruding eyes and nostrils, raised slightly above the flattened head, allowing the animal to see and breathe while the rest of its body is submerged. The ears have flaps that close when the head is submerged. A fold at the back of the mouth closes off the air passage from the food passage, enabling the animal to breathe even when its mouth is open underwater. The jaws have powerful muscles and sharp, strong teeth that are frequently shed, replaced by new ones that grow in their place. Both sexes have a pair of scent glands under the chin that secretes musk, a strong-smelling substance that attracts a mate.
How Do You Tell an Alligator from a Crocodile?
The easiest way is to look at the animals’ heads. Alligators and caimans have wide, U-shaped snouts. Crocodiles have narrow, V-shaped snouts. But there are other differences, too.
The upper jaws of alligators and caimans are wider than their lower jaws. When the mouth is closed, the teeth in the lower jaw are covered. A crocodile’s upper and lower jaws are nearly the same size. When its mouth is closed, some teeth in the lower jaw are still seen.
Alligators and caimans usually live in fresh water. Crocodiles are found in fresh water and in salt water. Crocodiles have salt glands on their tongues. Extra salt from food or water leaves the crocodile’s body through these salt glands.
Finally, alligators and caimans are shy and will usually avoid humans. Many crocodiles are bold. They are less likely to avoid humans.
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