Females live a solitary life, warning others to stay away from their small territory with vigorous head bobbing gestures (4). Males and females come together only to breed, and, like all Cyclura, breed annually. 1 to 22 eggs are laid depending on the female’s age and size (1), and are then incubated in the nest chamber that is dug about a foot below the surface of the soil (7). Hatchlings are vulnerable to native snakes (Alsophis cantherigerus caymanus) and have a high mortality rate (1).
Primarily herbivorous, these iguanas have been observed to consume 45 different plant species from 24 different families (6) (7). When available, they also feed on fruit, and have even been seen feeding on fungus, crabs, soil, and excrement (7).