| − | A '''rat''' is a small [[rodent]] found on all [[continent]]s except [[Antarctica]]. Rats are often considered to be [[pest]]s. They are also often known to carry disease; notably, the spread of the [[bubonic plague]] is attributed to rats. The [[taxonomy|genus]] ''Rattus'' includes over 50 species. | + | A '''rat''' is a small [[rodent]] found on all [[continent]]s except [[Antarctica]]. In the wild, rats are often considered to be [[pest]]s. They may be associated with the transmission of disease. Infected fleas living in the fur of rats are supposed to have spread [[bubonic plague]]. The [[taxonomy|genus]] ''Rattus'' includes over 50 species. |
| − | Rats can make good pets. They are usually kept in a [[cage]] or a [[terrarium]], sometimes with other rats or [[mice]]. | + | Rats can make good pets. They are usually kept in a [[cage]] or a [[terrarium]], sometimes with other rats or [[mice]]. Domestic rats are curious, clean, and gentle creatures with a life-span of approximately three years. |