Red iguanas are not a separate species. ... Most often, the name, red iguana, is used to refer to a green iguana with a red colour.
Iguanas are found in Mexico, Central and South America, the Galápagos Islands, on some of the Caribbean islands, Fiji and Madagascar. Iguanas typically live in tropical and subtropical forests, deserts and coastlines. There are also reports that there are iguanas running free in south Florida due to people setting their unwanted pets loose.
Iguanas are lizards identified by their stocky stature, the saggy skin on their throats and the spines that protrude from their heads, necks, backs and tails. Iguanas, like other lizards, are cold blooded. They use the sun, water and other things in their environment to help them stay warm and cool off.
Although classified as omnivores, most wild iguanas prefer a strongly herbivorous diet. They are especially fond of ripe fruit and leafy green vegetation. They get most of their water from these plants, but also obtain water from rain and condensation that accumulates in their surroundings. Iguanas enjoy the occasional insect in their diet, and juvenile lizards in the wild, survive primarily on insects until they are old enough to visit foraging sites for fruit and vegetation.