A New Addition For Your Swimmin' Hole

Giant pythons invade souteastern Florida. They're mostly Burmese pythons that were imported as pets, then escaped or were released into the wild.

Highly adaptable, pythons prey on cats, dogs, hares, foxes, squirrels, raccoons and even alligators, allowing them to thrive in a variety of environments.

After populating the Florida Everglades -- a vast marshland -- where it is estimated they number 30,000, the giant python is now spreading across the rest of the peninsula.

"Females may store sperm, so they can produce fertile clutches for years. And a 100-something pound snake can easily be producing 60, 80 eggs a year," said Mazzotti, adding that the reptile could eventually populate the entire southern United States.