Anatomy: Most Iguanas are green, while some species are able to change their colors. Due to fear or irritation these species can turn in to sombre hues and even black. An iguanas body is stout, but they can be extremely fast and agile on land. They have strong jaws that are razor sharp, and also sharp tails that can be used to whip off predators. If a Iguana is in danger, it is able to detach its tail to escape, and can grow another one without permanent damage. The typical forms of Iguana can also be distinguished by a large dewlap or pouch located beneath the head and neck (see illustration), and also by their crest of scales that starts at the nape of the neck and extends to the extremity of the tail. This crest or row of spines is very long, slender and compressed. Most Iguanas also have a third "eye" on their head, know as the parietal eye, which looks like a pale scale on the top of the head. They have excellent vision and can see shapes, shadows, colors, and movement from far away.

Habitat: According to the Enclyopedia Brittanica "the genera of this extensive family belong to the New World, being specially characteristic of the Neotropical region, where they occur as far south as patagonia, while extending northward into the warmer parts of the Neartic regions as far as California and British Columbia", the only three exceptions to this being the Brachylophus of Fiji, or the Hoplurus and Chalarodon of Madagascar. Other members of the Iguana family are the desert iguana, and the Galapagos Islands marine iguana. Green Iguanas are the largest lizards in the americas at around 6.5 feet (2 meters) long and 10 -30 pounds ( 5-14 kilos).

Diet: Iguanas are mostly Herbivores, eating leaves, flowers, and fruit.


Iguana- as pictured by the Enclyopedia Brittanica