In 2012, the U.S. Fish and
Animal wildlife facts Service banned the importation - and interstate transport - of the yellow anaconda. Rising as much as 15 toes (4.6 meters) long, this snake may probably threaten all types of native species. And as the U.S. Geological Survey studies, free-ranging yellow anacondas have been sighted in Florida and Arkansas. These snakes were most definitely former pets.