Constrictors

Prevention of spread is paramount. It is much cheaper than intervention once a snake population is established.
Free-ranging snakes representing dozens of species from around the world are discovered in the United States in any given year, usually as a result of escapees or illegal releases, but most of these have not established reproductive populatio
The brown tree snake is native to parts of Indonesia, the Solomon Islands, New Guinea, and Australia. The snake was first sighted on the island of Guam in the 1950s, probably after stowing away on cargo ships coming from New Guinea.
The Burmese python is distributed across more than a thousand square miles of southern Florida, including all of Everglades National Park and areas to the north such as Big Cypress National Preserve.  A number of Burmese pythons have been fou