Iguana GuideQuick answer: Iguanas can hear. Their external tympanic membrane is visible on the side of the head behind the eye.
The visible eardrum
In iguanas, the tympanum is not hidden inside a mammal-like external ear. It can be seen as a membrane on the side of the head.
Sound is one input
Vision and chemical cues are especially important in iguana communication, but sound and vibration still contribute to environmental awareness.
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Hissing is audible communication
Green iguanas can hiss during some interactions, showing that iguana communication is not exclusively visual.
Protect the structure
Because the tympanum is externally exposed, any visible injury or discharge around the ear region belongs with a reptile veterinarian.
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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.
Health boundary: Iguana Guide explains natural history and responsible ownership. It does not diagnose illness or provide treatment instructions.