Sunday, 21 February 2016

25-11-2015 SINGAPORE - GREEN IGUANA (Iguana iguana)


The green iguana (Iguana iguana), also known as the American iguana or the common green iguana, is a large, arboreal, mostly herbivorous species of lizard of the genus Iguana. Usually, this animal is simply called the iguana. The green iguana ranges over a large geographic area; it is native from southern Brazil and Paraguay as far north as Mexico.

A herbivore, it has adapted significantly with regard to locomotion and osmoregulation as a result of its diet. It grows to 1.7 m (5.6 ft) in length from head to tail, although a few specimens have grown more than 2 m (6.6 ft) with bodyweights upward of 20 lb (9.1 kg).

Commonly found in captivity as a pet due to its calm disposition and bright colors, it can be very demanding to care for properly. Space requirements and the need for special lighting and heat can prove challenging to the hobbyist.


The word "iguana" is derived from a Spanish form of the Taíno name for the species: iwana. In some Spanish-speaking countries, males of the species are referred to as garrobo or ministro and juveniles are called iguanita or garrobito.

The native range of the green iguana extends from southern Mexico to central Brazil, Paraguay, and Bolivia and the Caribbean; specifically Grenada, Aruba, Curaçao, Bonaire, Trinidad and Tobago, St. Lucia, St. Vincent, Montserrat, Saba and Útila.Grand Cayman, Puerto Rico, Hispaniola (in the Dominican Republic), Saint Martin (island), Guadeloupe, Martinique, Saint Vincent and the Grenadines, Singapore, Thailand, Taiwan, Texas, Florida, Hawaii, and the U.S. Virgin Islands. Furthermore, green iguanas colonised the island of Anguilla in 1995 after being washed ashore following a hurricane. Though the species is not native to Martinique, a small wild colony of released or escaped green iguanas endures at historic Fort Saint Louis.


Green iguana has been introduced from South America to Puerto Rico and is very common throughout the island, where it is colloquially known as gallina de palo ("bamboo chicken" or "chicken of the tree") and considered an invasive species; in the United States, feral populations also exist in South Florida (including the Florida Keys), Hawaii, the U.S. Virgin Islands and the Rio Grande Valley of Texas. Green iguanas have also successfully colonised the island of Anguilla, arriving on the island in 1995 after rafting across the Caribbean from Guadeloupe, where they were introduced.

The green iguana has become rare in parts of its native range of Central and South America due to hunting of wild iguanas for food, where iguanas have received the sobriquet gallino de palo ("bamboo chicken" or "chicken of the trees"). Overhunting resulted in a partial closure of markets in Nicaragua in 1976, while the government of Panama had taken action by the late 1960s to protect iguanas. 

Green iguanas are diurnal, arboreal, and are often found near water. Agile climbers, Iguana iguana can fall up to 50 feet (15 m) and land unhurt (iguanas use their hind leg claws to clasp leaves and branches to break a fall). During cold, wet weather, green iguanas prefer to stay on the ground for greater warmth. When swimming, iguanas remain submerged, letting their legs hang limply against their sides. They propel through the water with powerful tail strokes

While they may often be found in trees, these animals are well-known burrowers. The size of their burrow can range from 0.3 to 2.4 metres (1 ft 0 in to 7 ft 10 in) deep, with a diameter of 10 to 20 centimetres (4 to 7+3⁄4 in). They have been observed burrowing in canals, levees, and dikes and along seawalls in southern Florida. If individuals do not dig their own, they may even use gopher tortoise burrows or usurp those of the Florida burrowing owl.

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