Genes contribute to behavior differences between fierce and friendly rats

After many generations, rats bred for their bad attitude behave differently from those selected for a calm demeanor around humans. Research published Nov. 7 in the journal GENETICS identifies gene regions that contribute to differences between nasty and nice rats in their behavior and the activity of genes in the brain. These results may provide important clues as to which genes make tame animals like dogs behave so differently from their wild ancestors. —> Read More Here


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