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| Mammal | 74 | A Vertebrate having a constant body temperature and characterized by the presence of hair, mammar... | ^ |
| Rodent | 7 | The Class of Mammals with one or two pairs of incisors for gnawing. Includes rats, mice, guinea... | ^ |
| Mouse | . | A Rodent that has a hairless tail like a rat but that is smaller than a Rat. | ^ |
| Rat | . | A Rodent that has a hairless tail like a Mouse but that is larger than a Mouse. | ^ |
| Rabbit | 1 | A burrowing Rodent with a short tail and long ears. | ^ |
| Squirrel | . | A tree-dwelling Rodent with a bushy tail. | ^ |
| GuineaPig | . | The guinea pig (Cavia porcellus), cavy or domestic guinea pig, or cuy for livestock breeds, is a sp... | ^ |
| Hamster | . | Hamsters are rodents belonging to the subfamily Cricetinae. The subfamily contains about 25 species... | ^ |
