Rats grow to cover a wide range of sizes; some are minuscule, while others grow up to 3 feet in length. Individual rats of various species are occasionally found at this large size, but one species of giant rat, the Bosa... More »

www.reference.com Pets & Animals Mammals Rodents

Depending on the size class and strain the dog belongs to, a rat terrier can grow up to 19 inches at the shoulder and weigh up to 40 pounds. The AKC breed standard for show dogs requires them to be under 18 inches in hei... More »

www.reference.com Pets & Animals Pets Dogs

The Gambian pouched rat is the largest known rat species, reaching lengths of up to 3 feet. Their average weight is between 3 and 4 pounds, although they can weigh up to 9 pounds. More »

According to experts, domesticated rats may reach up to 12 inches in length and up to 5 inches in width. However, due to a shorter life expectancy, those found in the wild typically do not live long enough to exceed 10 i... More »

Sewer rats have a maximum body length of 10 inches, with tails of a similar length. They can weigh up to 2 pounds, but specimens of this size are rare in the wild. Sewer rats go by many names, such as "brown rats," "whar... More »

Mongooses are carnivorous and normally eat small vertebrates, such as snakes, rats and birds. They also like crabs, insects, lizards, rodents, millipedes, beetles and earthworms. More »

Wolf rats are fictional creatures featured in the 2008 PC role-playing video game Drakensong. In the game, these creatures can be found in sewers, cellars and dungeons. Although solitary wolf rats pose little threat to a... More »