Iguana GuideWhat makes an iguana an iguana
The word “iguana” is used for several related lizards, but they are not all ecologically identical. Green iguanas are primarily arboreal and strongly associated with warm habitats near water, while marine iguanas have evolved a very different coastal lifestyle in the Galápagos. That variation is why a species-first reference matters.
How to use Iguana Guide
Start with species if you are identifying an animal. Use Behavior for displays such as head bobbing, tail whipping and dewlap extension. Biology explains structures such as the tail, teeth, spines and parietal eye. Wild Iguanas covers ecology, introduced populations and place-based questions.
A knowledge site, not a diagnosis service
Iguana Guide explains observable behavior, anatomy, natural history and responsible ownership. It does not diagnose illness or provide treatment instructions. When a physical or behavioral change could indicate a health problem, the appropriate next step is a qualified reptile veterinarian.
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.