DNA has long been used to solve crimes and even exonerate the innocent. Soon, it could be used to pinpoint poo. Apparently, video camera surveillance was way too 20th-century for the good people of Scarlett Place Condominiums in Baltimore, who have proposed DNA tests to identify the originators of dog poop left on the premises.
When the words "Baltimore" and "rat" appear together, they usually involve a discussion of the fate of The Wire's Wallace or a DVD featuring Carmelo Anthony. However, unlike the alleged turncoats, it seems that actual rodents really do hold down their block. According to a new study in Molecular Ecology by a team of Johns Hopkins scientists, Norwegian rats are as neighborhood-oriented as any of the bipedal residents of Charm City.