The Jamaican Iguana, also known as the Blue Iguana, is one of the most endangered lizards in the world. It can grow to over 5 feet long and has a bluish-gray coloration. The species was thought to be extinct until a small population was discovered in the 1990s. Conservation efforts, such as habitat restoration and captive breeding, have helped to increase their numbers, but the Jamaican Iguana is still considered critically endangered. Threats to their survival include habitat loss, invasive species, and hunting. Efforts are ongoing to protect and preserve this unique and rare species.