Burmese Pythons Eating Up the Everglades

Rabbits, raccoons, opossums and bobcats are almost things of the past in the Florida Everglades, where Burmese pythons are fighting with alligators to dominate the food chain. Released by pet owners over the years, the pythons have multiplied so much they're causing the decline of native animals. That's according to a report co-authored by J.D. Willson at Virginia Tech University and published yesterday in the Proceedings of the National Academy of Sciences.