rats carry bubonic plague and are therefore a great menace
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A '''rat''' is a medium-sized [[rodent]] found on all inhabited [[continent]]s. They live on garbage in slums and are also often known to carry disease; notably, the spread of the [[bubonic plague]] is attributed to rats.ild, 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.
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A '''rat''' is a medium-sized [[rodent]] found on all inhabited [[continent]]s. They live on garbage in slums and are also often known to carry disease. The [bubonic plague]] which killed one third the population of Europe is attributed to rats which carried plague-infected
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fleas living in their fur. The [[taxonomy|genus]] ''Rattus'' includes over 50 species.