Iguanas can hold their own in a fight
Iguanas use their tail for balance while climbing and maneuvering, but these long appendages serve yet another purpose — self-defense.
When encountering a predator or other threat, the iguana will distract and bewilder its attacker by thrashing its tail. Sometimes the tail will break off and the creature is able to make a quick getaway. (Don't worry, the tail grows back later.)
In the event that a predator tries to eat an iguana, its tail is equipped with spiky spinal combs that makes it a difficult meal to swallow.