Large Black Ctenosaur or Iguana Negra eating red Hibiscus flower near Nosara, Nicoya Peninsula, Guanacaste Province, Costa Rica

Black spiny tailed Iguana (Ctenosaur similis) crawling, Manuel Antonio National Park, Puntarenas Province, Costa Rica, Central America

Black spiny tailed Iguana (Ctenosaur similis) crawling, Manuel Antonio National Park, Puntarenas Province, Costa Rica

Ctenosaur (Black Spinytail Iguana) (Ctenosaura similis) a common large lizard, Nosara, Guanacaste Province, Costa Rica, Central America

A large male Black Ctenosaur (Iguana negra) with parasitic ticks, a lizard species endemic to Central and South America, Nosara, Nicoya Peninsula, Guanacaste Province, Costa Rica, Central America

Tourists photographing a Black Spiny Tailed Iguana Lizard (Ctenosaura similis), Manuel Antonio National Park, Costa Rica, Central America