- The green iguana is a social species; groups can be found basking and foraging together in trees.
- It can swim well and can stay underwater up to 30 minutes.
- It can change color slightly to help blend into its environment, but not nearly as well as some lizards, such as chameleons.
- Their tails, which can act like a whip, can be used to deliver painful strikes to attackers. If caught by a predator by the tail, the iguana can allow it to break, so it can escape and eventually regrow a new one.
- They regulate their body's salt level by expelling a saline solution through two prominent nostrils.
The iguana faces threats from the pet trade and the destruction of its rainforest habitat.