The Green Iguana (Iguana iguana) is a large, arboreal herbivorous species of lizar of the genus iguana native to Central and South America. The Green iguana ranges over a large geographic area, from southern Brazil and Paraguay to as far north as Mexico, the Caribbean Islands; and in the United States as feral populations in South Florida, the Florida Keys, Hawaii and the Rio Grande Valley of Texas. The Green iguana is a reptile commonly found in captivity as a pet and grows to 1.5 meters in length from head to tail, although a few specimens have grown more than 2 meters (6 feet) and can weigh upwards of 20 pounds (10 kg).