African rock Python in Florida

Six African rock pythons have been found in Florida since 2002. More troubling, a pregnant female and two hatchlings have been found, which means the aggressive reptiles have set up house.

More dangerous than even Burmese pythons—which are known to eat alligators (alligator-python picture)—the African pythons are "so mean, they come out of the egg striking, " said Kenneth Krysko, senior herpetologist at the Florida Museum of Natural History in Gainesville.

"This is just one vicious animal."

With the addition of the rock python, Florida is now an established home-away-from-home for three large alien constrictors—including the Burmese species and the boa constrictor—according to wildlife biologist Robert Reed, who studies invasive reptiles for the U.S. Geological Survey in Fort Collins, Colorado.

(The Florida python crisis will be covered in a future episode of Explorer on the U.S. National Geographic Channel. The National Geographic Channel is part-owned by the National Geographic Society, which owns National Geographic News.)