They are also good swimmers and jumpers. Although their coloring and body shape varies a bit from region to region, they tend to be cryptically colored. This means that they are well camouflaged, and blend in nicely with their surroundings. This helps protect them from predators. This is especially important for hatchlings and juveniles, which are low on the food chain and must be very wary of predators attacking from the air and the ground.
Some green iguanas have small horns on their snouts.
It was once thought that such iguanas belonged to a separate subspecies of Iguana iguana , but this is no longer the case. Some pet stores still market such horned iguanas as a separate species, and sometimes they charge more money for these individuals by convincing uninformed customers that such iguanas are a special, rarer breed. In fact, iguanas native to the same general area may or may not have these horns. It does not seem to be a trait that is regional in any way. It is simply an example of genetic variety within the species.