| − | '''Rodents''' (known scientifically as the family ''Rodentia'') include [[mice]], [[rat]]s, [[bat]]s, [[lemming]]s, and other small furry [[mammal]]s. They are typically [[omnivore]]s or [[insectivore]]s, meaning that they eat [[insect]]s. Many rodents are kept as common household [[pet]]s or animals. | + | '''Rodents''' (known scientifically as the order ''Rodentia'') are mammals characterized by two pairs of large, continually-growing incisor teeth, kept short by gnawing on the hard shells of seed-nuts or wood. They are found on every continent except Antarctica, and range in size from small mice to the 100-pound capybara of South America. |