One of the 9 iguanas on WAnimals

Reptiles · Squamata · Iguanidae

Grand Cayman Blue Iguana

Cyclura lewisi

Endangered

It faces a very high risk of extinction in the wild in the near future. See full glossary

The Grand Cayman blue iguana is a large lizard endemic to the island of Grand Cayman, which takes on an intense turquoise blue when basking or during the breeding season. In 2002 there were between ten and twenty-five individuals left in the wild and the species was given up as doomed. A captive breeding and reintroduction programme has taken the population past a thousand.

Weight

11 kg – 14 kg

Size

1 m – 1.5 m

Lifespan

60 years

Diet

Herbivore

Feeds mainly on plants.

Activity

Diurnal

Active mainly during the day.

Social structure

Solitary

Lives and hunts alone, joining others only to breed.

Sighting difficulty

Hard

Estimated population

Around 1,000 individuals

1countries9same family

Fun facts

  • GeneralIt was once down to a dozen animals; today there are over a thousand, thanks to captive breeding.
  • In 2002 there were between ten and twenty-five animals left in the wild: it was one of the most threatened species on the planet, and today it numbers more than a thousand thanks to a breeding and reintroduction programme cited as a benchmark success.
  • Its blue deepens with heat and in the breeding season: a cold or stressed animal is brownish grey, and the turquoise that gives it its name appears only when it is active in the sun.
  • It can live more than sixty years, and some of the founder animals of the recovery programme are still alive and breeding two decades on.

Life cycle & biology

Skeleton type
Vertebrate - internal bony skeleton (reptile)
Habitat & environment
Dry forest, coastal scrub and rocky ground
Sexual maturity
4 years
Gestation / incubation
70 days of incubation
Litter / clutch size
15 eggs

Sources consulted: https://es.wikipedia.org/wiki/Cyclura_lewisi

Related species

Other species in the catalogue with the most in common with Grand Cayman Blue Iguana — same habitat, park, country, tags or family.

How to help

The grand cayman blue iguana is classified as endangered. Organizations such as UICN, WWF y Wildlife Conservation Society work specifically on its conservation and that of its habitat; looking into their programs is a good starting point if you want to get involved.

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