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I think most of us can agree: rats are vile, disease-carrying vermin that overrun city streets leaving destruction in their wake. However, my view of them may have softened a bit this week thanks to a study from Fordham University and Providence College.
According to the study, rats who have set up residence in Manhattan’s uptown show slight genetic differences from the rats who reside downtown.
Detailing their findings in the journal Molecular Ecology, researchers located and captured rats from all over Manhattan, noting where each rat was captured. Once captured, the rats’ tails were used as a source for DNA analysis.
In a first-of-its kind study of the Manhattan brown rat, researchers compared the genomic results by geography and determined that most of the brown rats were descended from western European rats brought here over 200 years ago as stowaways on ships.
However, there are genetic differences among current populations depending upon where the rats live. In some case, researchers were able to identify down to the specific neighborhood where rats resided by simply looking at their individual rat profiles. For instance, based on their profiles, researchers were able to tell if a rat spent the majority of its time in the East Village or the West Village.
As researchers continue looking at urban rat populations, it is their hope that their findings will help to reduce the number of rats overrunning cities.
In the meantime, I am left with a different vision of city rats: Instead of the disease-carrying nuisances I picture lurking in subways or darkened alleys, I now imagine as waring rat gangs in the vein of West Side Story where rats from uptown battle/dance the downtown rats for turf supremacy—set to the backdrop of a lively Broadway soundtrack, of course.
Source: Pixabay
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