Introduction to Rodent
Rodent, a gnawing mammal. There are more species of rodents, and probably more individuals, than there are of all other mammals combined. They include beavers, chipmunks, mice, porcupines, rats, and squirrels. Rodents breed so swiftly that they would soon overrun the earth if they were not the prey of almost all flesh-eaters. Most rodents are small fur-bearing animals, although some, such as the porcupine, develop spiny quills. Some, such as beavers and muskrats, are prized for their fur.
Squirrels are common rodents.Rodents, unlike other mammals, have only two pairs of incisors (front teeth)—one upper pair and one lower pair. The incisors grow throughout life. Gnawing grinds the edges into a chisel shape. Rodents have no canine teeth. In many species, the gap between incisors and molars is filled by a hairy pad that prevents inedible gnawed material, such as wood chips, from entering the mouth cavity by keeping it between the mouth walls and the teeth. Many rodents have cheek pouches, which they use for carrying food.
Most rodents are burrowing animals, but some live in trees and others spend much of their time in water. Almost all are vegetarians; some, such as squirrels, eat both plants and animals.
As a group rodents are destructive pests. They destroy grains and other foods, ruin land with their burrows, and carry various kinds of diseases.
Rodents form the order Rodentia of the class Mammalia.
What Is A Rodent?
There are more than 2,000 species, or kinds, of rodents. Beavers are rodents. So are mice, rats, squirrels, prairie dogs, and chipmunks. Gophers and porcupines are rodents, too.
The word rodent comes from a Latin word that means “to gnaw” (naw). A beaver likes to gnaw, or bite, on trees. A squirrel gnaws on hard nuts. A rat can gnaw through many kinds of walls. Gnawing wears down a rodent’s incisors and keeps them from growing too long.
All rodents are part of a larger group of animals called mammals. Mammals are warm-blooded animals whose babies drink their mother’s milk. Mammals also have hair. Most rodents have fur.
Where In the World Do Rodents Live?
Rodents live in almost all parts of the world. Mice and rats, for example, live on every continent except Antarctica. Porcupines live in Africa, Asia, Europe, North America, and South America. Capybaras (kap uh BAHR uhz) are found only in Central America and South America.
The American beaver lives mainly in the United States and Canada. The Eurasian beaver lives in Europe and Asia.
Like many other rodents, beavers live in and near the woods. They make their homes in rivers, lakes, streams, and ponds. Often, a family of five or six beavers lives together.
Which Rodent Hops Like A Kangaroo?
Kangaroo rats, of course! They get their name because of the way they hop on their long, strong hind legs—just as kangaroos do.
The kangaroo rat is a rodent in the pocket mouse family.A kangaroo rat is only about 15 inches (38 centimeters) long, but nearly half that length is its tail. Despite this, it can leap up to 6 feet (1.8 meters) in a single bound.
A kangaroo rat is neither a kangaroo nor a rat. It is actually a rodent in the pocket mouse family. A kangaroo rat lives in one of the deserts of the southwestern United States. Like a kangaroo, a kangaroo rat has short front legs. They don’t touch the ground when the animal leaps. And while a kangaroo has a pouch in its belly, a kangaroo rat has two pouches outside its cheeks.
Which Rodent Acts Like A Dog?
A prairie dog does. It isn’t really a dog, but it sure behaves like one. A prairie dog wags its tail. When sitting up, it looks like a dog begging for a treat. It barks to warn other prairie dogs of danger. And baby prairie dogs are called pups.
Prairie dogs belong to the squirrel family. There are two main kinds of prairie dogs. Black-tailed prairie dogs live on the prairies of North America. White-tailed prairie dogs live in the Rocky Mountains.
Prairie dogs live together in large groups called towns. A town is a series of long underground tunnels that are connected to each other. A prairie dog town may have over 500 members.
Are Rodents In Danger?
Nearly all rodents have natural enemies. Enemies include bears, wolves, weasels, cats, snakes, hawks, eagles, and owls.Humans, though, cause rodents the most danger. Farmers kill rodents that damage their crops, animals, or property. Beavers and other rodents are hunted for their fur. People often kill rats that carry diseases such as typhus, rabies, and the plague.
Long ago, people trapped so many beavers that these animals nearly became extinct. Coats and hats were made with beaver fur. Today, laws in the United States protect beavers by limiting the times of year when they may be hunted. Many countries in Europe are also now importing beavers. This is helping beavers to find new habitats.
Although they always face dangers, few kinds of rodents, if any, will become extinct. Most multiply so quickly that they will be around for a long time to come.