Will Burrard-Lucas / Cayman Island Brown Iguana (Cyclura nubila caymanensis) Cayman Brac Island, Cayman Islands.

Will Burrard-Lucas / Cayman Island Brown Iguana (Cyclura nubila caymanensis) Cayman Brac Island, Cayman Islands.

Will Burrard-Lucas / Young Cayman Island brown iguana (Cyclura nubila caymanensis) on the beach, Little Cayman. Critically endangered species.

Will Burrard-Lucas / Cayman Island brown iguana (Cyclura nubila caymanensis) on the beach, Cayman Brac, Cayman Islands. Critically endangered species.

Will Burrard-Lucas / Young Cayman Island brown iguana (Cyclura nubila caymanensis) on the beach, Little Cayman. Critically endangered species.

Joel Sartore / Photo Ark / Sister Isles iguana (Cyclura nubila caymanensis) female, portrait, IguanaLand, Florida. Captive, occurs in Sister Isles, Cayman Islands. Critically endangered.

Pascal Kobeh / Cuban rock iguanas (Cyclura nubila) and Caribbean hermit crabs (Coenobita clypeatus) on the beach with a Desmarest's hutia (Capromys pilorides), a species of rodent, in the background, Gardens of...

Pascal Kobeh / Cuban rock iguanas (Cyclura nubila) on the beach with a Desmarest's hutia (Capromys pilorides), Gardens of the Queen National Park, Cuba.

Alex Mustard / Portrait of Cuba iguana (Cyclura nubila) on a tropical beach. Jardines de la Reina, Gardens of the Queen National Park, Cuba.

Claudio Contreras / Cuban iguana (Cyclura nubila nubila) Guanahacabibes Peninsula National Park, Pinar del Rio Province, western Cuba.

Claudio Contreras / Cuban iguana (Cyclura nubila nubila) eye, Guanahacabibes Peninsula National Park, Pinar del Rio Province, western Cuba.

Claudio Contreras / Cuban Iguana (Cyclura nubila nubila), Guanahacabibes Peninsula National Park, Pinar del Rio Province, western Cuba.