Evolution Of The Brown Rat
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1895 Words
Present Variations Variations in Brown rats; captivity versus in the wild For over a century brown rats (Rattus norvegicus) have been used by humans for many reasons. Originally, they were used by rat fanciers (those who breed rats as a hobby for their unique coats etc) and later by scientists who still use R. norvegicus to this day for their...
Rat
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