By 2003 only 15 Grand Cayman Iguanas were left. The blue iguana has made an amazing comeback due to this successful head-start conservation program. Photo Credit: Fred Burton The Blue Iguana is endemic to Grand Cayman. By 2004 a dozen or so blue iguanas were left. A breeding programme increased their numbers and has released 1,000 into nature reserves with few predators. It's also the heaviest of all iguanas. Green iguanas were brought to the Cayman Islands from Honduras and are an invasive species. An aggregation of Fernandina iguanas (A. cristatus cristatus) [Canon 7D, Canon 14mm] Nobody really knows how many marine iguanas live in the Galapagos, and estimates of their numbers vary wildly between 50 and 250 thousand individuals. The fact is, there are only 90-120 pure-blooded blue iguanas left in the world. ... many of the world's animals are truly in an adapt or die situation. Iguanas rid themselves of excess salt, consumed along with the algae, by a special gland connected to their nostrils. Blue Iguanas at a glance. Mr. Esteban credits decades of working with the Blue Iguanas for keeping him ‘young’ and at 75-years-old there’s still quite a lot of fuel left in his tank. By 2004 a dozen or so blue iguanas were left. Back then we didn t even know how many Blue Iguanas were left in the wild, commented Mr. Burton. But the stars of the park are undoubtedly the native Blue Iguanas that roam the park freely, often posing for photos. Marine Iguanas of the Galapagos :: MarineBio Video Library. Burton estimates that the blue iguana population was in the low 100’s from 1900 to 1990, and went down to about a dozen by 2002. The attacks, which also left three other animals injured, occurred on Saturday night in a captive breeding facility on the Caribbean island. The green iguana is the most common type of iguana being sold today. There are only 10-25 left in the wild; They can live for more than 60 years; Cayman’s blue iguana population is healthy and poised to reach a round number milestone in its renaissance from the threat of near-extinction. Yes, they are a different color (as my kids used to say, “thank you, Captain Obvious!”). Marine iguanas, Amblyrhynchus cristatus (Bell, 1825), are the world’s only sea-going lizards and are a gray to black iguana with pyramid-shaped dorsal (upper) scales. By 2002, there were fewer than 20 blue iguanas left in the wild! Police on Grand Cayman are hunting criminals who slaughtered six of the island's iconic and critically endangered giant blue iguanas. That’s three quarters of the way to our numeric goal. The blue iguana's herbivorous diet is plants, fruits and flowers. By 2012 there were over 750 iguanas in the population. As of April 2013, that calculation yields about 750 iguanas. Green Iguana. There are many wild and unknown iguanas in the world, so there is no definite number. So we assume that the new iguanas make up for the un-witnessed deaths, more or less, to yield a net change of zero. The Blue Iguana Recovery Program has been dedicated to the conservation of these beautiful creatures since 1990. The species lives only on Grand Cayman, and the recovery program is run by the National Trust for the Cayman Islands. The blue iguana (Cyclura lewisi), also known as the Grand Cayman ground iguana, Grand Cayman blue iguana or Cayman Island rock iguana, is an endangered species of lizard endemic to the island of Grand Cayman.Previously listed as a subspecies of the Cuban iguana (Cyclura nubila), it was reclassified as a separate species in 2004 because of genetic differences discovered four years earlier.