An ecology researcher has been tracking brown rats all over Manhattan for nearly the ... you'll find uptown rats and downtown rats, with a break in midtown. The two groups don't mingle much.

Manhattan has two genetically distinguishable groups of rats: the uptown rats and the ... north of 59 th Street) and downtown (white, south of 14 Street). Right: a map showing estimated migration ...

This week's question comes from a New Yorker who wants to nail down Manhattan's geographical boundaries once and for all. What is the uptown/downtown ... my mental map of Midtown is like a ...

Apparently, rats that live Uptown and Downtown in New York City have distinct genetic differences, according to a new paper out of Fordham University. Matthew Combs, a PhD student at Fordham ...