Iguana GuideQuick answer: Iguana lifespan is not one universal number. Species, predation, habitat, nutrition, disease, accidents and captive husbandry all influence survival.
Depends onSpecies
Wild factorsPredation & habitat
Captive factorsHusbandry
AvoidOne-number certainty
Why lifespan ranges vary
Wild animals face predation, weather, competition and other ecological pressures. Captive animals remove some of those pressures but become completely dependent on appropriate housing, temperature, light, nutrition and veterinary care.
Use species-specific references
A lifespan estimate for a green iguana should not automatically be transferred to a marine iguana or a rock iguana.
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Planning for ownership
The important practical point is that a green iguana is not a short-term pet. Anyone considering one should plan for a large adult and a long commitment.
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Keep exploring
Iguana facts become more useful when anatomy, behavior, species and habitat are connected instead of treated as isolated trivia.
Sources & further reading
Core 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.