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Fast Facts:

  • Iguanas have many tiny teeth on both their upper and lower jaws

  • Green iguanas have a "third eye" on the back of their head that functions as a regulator of amount of sun the iguana needs while basking. It also sends signals to the brain in response to shadows as a warning of an attacking predator.

Common Green Iguana

Scientific Name Iguana iguana
Classification Phylum Chordata, Class Reptilia, Order Reptilia, Suborder Sauria, Family Iguanidae
Status While the common green iguana is not currently listed as "endangered," several other species of iguanas are endangered. Common green iguanas are listed as CITES Appendix II. CITES (Convention on International Trade in Endangered Species of Wild Fauna and Flora) is a United Nations treaty with over 100 member states and provides a means for regulating international trade in wild animals and plants.
Range In the wild, common green iguanas are found from Mexico to Paraguay and in southern Brazil.
Habitat Primarily rain forests; also woodlands, savannas
Diet In the wild, iguanas eat vegetation, insects and arachnids, as well as the occasional small mammals and eggs.
Size up to 5 feet
Lifespan Over 20 years.
Location

Special Features

  • Like all reptiles, iguanas are ectotherms. This means they are not able to regulate their body temperature internally (as humans, other mammals, and birds are). Instead, their body temperature is dictated by the temperature of their environment. When reptiles want to be warm they must seek a sunlit area. When they need to cool themselves, they seek shade.
  • They shed their skin, or molt, as they grow older.

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