February 7, 2011 6:51 PM

Not-so-killer freeze: Burmese pythons return to Everglades

While scientists can only estimate the toll the Big Chill took on the army of exotic reptiles, fish and plants in the wilds of South Florida, field observations over the last year suggest nature knocked them down but not out. Some, including Burmese pythons, already are speeding down the road to recovery.

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