Blue Iguana

Cyclura lewisi

The blue iguana (Cyclura lewisi) is a large rock iguana native to Grand Cayman, where adults can show a cool gray to powder-blue color, especially in mature males. It is a heavy-bodied, ground-dwelling lizard with strong limbs, a spiny crest, and a blunt head built for browsing on tough island vegetation. Once reduced to very low numbers, it is now one of the best-known examples of intensive reptile recovery, with wild animals tied closely to dry forest, shrubland, rocky openings, and protected reserve habitat.

Human involvement with blue iguanas is almost entirely conservation and specialist zoo care, not ordinary pet ownership. Recovery work has used captive breeding, head-starting, release monitoring, habitat protection, and control of threats such as dogs, cats, road traffic, and habitat loss. Facilities that keep Cyclura need large secure enclosures, strong basking heat, ultraviolet exposure or natural sun, high-fiber plant diets, and nesting areas with suitable soil. Individual identity, origin, and breeding records matter because the remaining population is small and carefully managed.