Nearly 40% of mammal species are rodents, and they are found on every continent except Antarctica. Rodents include mice, rats, squirrels, chipmunks and beavers, among others.


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To Save the Galapagos Islands, We May Need to Modify Rat DNA

The population-control strategy to rid the islands of the invasive species would use something called "gene driving" and GMO rodents.

Prairie Dogs Savagely Kill Squirrels to Eliminate the Competition

Prairie dogs are cute little vegetarians … who have no problem casually snapping the neck of a ground squirrel. And those that kill have another sexy benefit, too.

'Off Switch' for Appetite Accidentally Discovered in Brain Enzyme

Researchers at Johns Hopkins have stumbled upon a previously unknown type of brain cell that tells mice when to stop eating. Could that work for humans?

Bushy-Tailed Woodrat

Also called packrat, the bushy-tailed woodrat has a habit of stealing shiny objects to add to its den of sticks, bones is and vegetation. In this guide, you'll learn all about the packrat including it's habitat is and conservation status.

Northern Red-Backed Vole

In this guide, you'll learn about the Northern Red-Backed Vole, including information about it's habitat and diet.

Red Squirrel

In this guide to Red squirrels, you'll learn all about the creature's habitat, diet and conservation status.

Black Bear

A solitary, predominantly vegetarian creature, the black bear uses its keen sense of smell to search out fruit, nuts, berries is and roots.

White-Footed Mouse

This common nocturnal mouse is often seen climbing in trees, using its long tail for balance.

Black-Footed Ferret

In this guide to the Black-Footed Ferret, you'll learn cool facts about its habitat, unique behaviors and it's converstation status.

Rodent Image Gallery

Rodents range from beavers to red squirrels and guinea pigs. Learn all about rodents by checking out these rodent pictures.

What's the best way to remove porcupine quills?

Porcupines know nothing of bad hair days. These walking pin cushions use their prickly "hairs" to impale any animal that may pose a threat to their well-being.

Can I catch plague from a prairie dog?

Prairie dogs may look cute and cuddly, but are these rodents harbingers of deathly plague? Since there aren't any underground pharmacies in prairie dog towns, will disease wipe out these animals?

Why do beavers build dams?

Environmentalists agree that beaver dams help the environment by creating wetlands but why are some landowners and farm owners getting riled up? How could these dams be hazardous to roads, bridges and levees?