But the USGS "didn't do a very good analysis," said Cornell's Greene. Frank Burbrink, an associate
professor of biology at the City University of New York's College of Staten Island, examined a much
wider range of ecological factors in his own study released six months later, concluding that pythons
could roost only in South Florida and the southern tip of Texas.
"There's a lot of hype on various sides of this, but I do think there really is a problem," said Greene. "If
you have an exotic, vertebrate predator that weighs well over 100 pounds, is thriving in a national park
and can possibly extend its range into the Southeastern U.S., it certainly deserves to be addressed."