Tuesday, June 02, 2009

Home, Sweet Home: Urban Rats Stay Put

City mice like to stick close to home and form distinct communities, research now shows.

Past studies on rat populations, based only on observations, have shown that urban rats generally don't move around as much as rural rats. But scientists also know that rodents can travel long distances. To get a picture of how far from home rats in Baltimore usually travel, researchers at the John Hopkins Bloomberg School of Public Health carried out genetic studies on rats in the area.
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