Iguana GuideBehavioral temperature control
An iguana can change its thermal environment by moving into sun, shade, a burrow, vegetation or water.
Why basking is visible
UF/IFAS describes green iguanas basking on natural and human-made surfaces. Warming affects activity because reptile physiology is temperature-dependent.
When temperatures fall too far
In Florida cold snaps, green iguanas can become lethargic and stiff and may fall from trees. The phenomenon is a vivid demonstration of ectothermy, not evidence that the animals are necessarily dead.
Captive implications
Responsible housing must provide an appropriate thermal gradient rather than one uniform temperature. Exact husbandry should follow current reptile-veterinary guidance.
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.