Some of South Florida's native wildlife are born killers. Rattlesnakes are invading golf courses and local parks filled with families unaware of their deadly presence. Venomous cottonmouths and gators on the prowl end up in places people least expect.

Monsters have become so prolific in the Everglades, that lawmakers have banned imports of several large constrictors, but it may be too late, because it didn't stop a 13-foot killer python from taking a dip in a neighborhood pool - on Christmas morning.

It's man versus reptile - and it's not just a fight, it's outright war. A rattlesnake goes swimming in a woman's pool while another is hiding in the depths of a woman's car, waiting to strike.