Avoidance first
Distance is often safer than contact. Climbing or diving into water can remove a green iguana from immediate danger.
Visual warning
Body elevation, dewlap extension, orientation and other displays can warn before physical contact.
Physical defense
The tail can be swung forcefully and the mouth can be used to bite. Claws can also injure during struggling or escape.
Autotomy
Green iguanas can lose part of the tail through autotomy, creating an opportunity to escape while the detached section distracts a predator.
Keep exploring
Use the related guides to connect this topic with species, behavior, anatomy and habitat rather than treating it as an isolated fact.
Sources & further reading
Key factual claims on this page were checked against these references.