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black rat
The black rat (''Rattus rattus'', also known as the ship rat, roof rat, house rat, Alexandrine rat, old English rat, and other names) is a common long-tailed rodent of the genus ''Rattus'' (rats) in the subfamily Murinae (murine rodents). The species originated in tropical Asia and spread through the Near East in Roman times before reaching Europe by the 1st century and spreading with Europeans across the world.
Black rats are generalist omnivores. They are serious pests to farmers as they eat a wide range of agricultural crops.
==Taxonomy==
The black rat was one of the many species originally described by Linnaeus in his 18th century work, ''Systema Naturae'', and it still bears its original tautonym of ''Rattus rattus''.〔 〕 It is the type species of the genus ''Rattus''.
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