Burmese pythons were introduced into the Florida Everglades in the 1980s. They escaped from captivity and pet owners also dump them when they become too large to keep. The pythons are prolific and can grow to more than 15 feet long (5 meters) and weigh 150 pounds (75 kg).
A new Davidson College study reveals rapidly declining populations of indigenous Everglade mammals (e.g., raccoons, deer, opossum, and others), by more than 90% since the late 1990s. Researchers believe the skyrocketing python population is to blame.