| 11. | Female brown rats ( Rattus norvegicus ) first mate at two or three months.
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| 12. | Female brown rats ( Rattus norvegicus ) first mate at two o three months.
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| 13. | Much of the genome of " Rattus norvegicus " has been sequenced.
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| 14. | Ten pregnant female Wistar rats ( " Rattus norvegicus " ) were flown.
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| 15. | Dmits has been blocked indefinitely as a vandal and Rattus nonnus is pretty obviously a sock.
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| 16. | Also issued by the label are recordings by Youth in Asia from Canada and Rattus from Finland.
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| 17. | Polynesian rats ( " Rattus exulans " ) are present on Teeraina, apparently since prehistoric times.
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| 18. | A new species of " Rattus " ( Rodentia : Muridae ) from Manus Island, Papua New Guinea.
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| 19. | Today, Boston is known for its innovative efforts to keep the Norway rat ( Rattus norvegicus ) at bay.
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| 20. | Systematically they were long placed in the genus Rattus ( referred to as " Rattus natalensis " ).
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