Fifteen years ago, a cold snap froze much of Florida's wildlife to death — including many of the state's invasive Burmese pythons (Python bivittatus). But in this excerpt from "Slither: How Nature's ...

Arctic air is expected to bring unusually cold temperatures to Florida. Iguanas can become temporarily paralyzed when temperatures drop to between 40 and 50 degrees. A major die-off of invasive ...

"The 2010 cold snap may have created a subset of pythons better able to survive cold temperatures — and thus better adapted to spread beyond the northern boundaries of its current range." When you ...