Sean Crane / Black Spiny-tailed Iguana (Ctenosaura similis), Ambergris Caye, Belize

Angelo Gandolfi / Black iguana (Ctenosaura similis) on branch, Corcovado National Park UNESCO World Heritage Site, Osa, Costa Rica, March.

Angelo Gandolfi / Black iguana (Ctenosaura similis) in breeding colours, Nicoya peninsula, Costa Rica,

Jen Guyton / Black iguana (Ctenosaurus similis) in rainforest, whilst juveniles are arboreal adults of this species are ground dwelling. Costa Rica

Jen Guyton / Black iguana (Ctenosaurus similis) in rainforest, whilst juveniles are arboreal adults of this species are ground dwelling. Costa Rica

Jen Guyton / Black iguana (Ctenosaurus similis) juvenile. Juveniles of this species black iguanas are arboreal and very cryptic in order to avoid predators. Costa Rica

Claudio Contreras / Common spiny-tailed iguana (Ctenosaura similis) climbing Green iguana (Iguana iguana), Banco Chinchorro Biosphere Reserve, Caribbean region, Mexico

Claudio Contreras / Common spiny-tailed iguana (Ctenosaura similis) in front of Green iguana (Iguana iguana), Banco Chinchorro Biosphere Reserve, Caribbean region, Mexico

Huw Cordey / Black iguana (Ctenosaura similis) predating hatchling olive ridley turtle (Lepidochelys olivacea), Nancite, Santa Rosa National Park, Costa Rica.

Pete Oxford / Black Spiny-tailed Iguana (Ctenosaura similis) sunning on rock, Banco Chinchorro, Yucatan Peninsula, Mexico

John Cancalosi / Male Spiny-tailed iguana / Black iguana / Black ctenosaur (Ctenosaura similis) displaying by bobbing head, Costa Rica.

Donald M. Jones / Black Spiny-tailed Iguana (Ctenosaura similis) in tree, Yucatan Peninsula, Mexico