I once watched an iguana dislodge a thorn from its tongue by sticking the tongue out and dragging it back across its teeth several times. After a wet period, they blanket the island in yellow flowers. The flowers, however, last only a few days because they are eaten by the iguanas. Occasionally land iguans will dine on carrion or arthropods that crawl in their burrow. Again like other iguanas, the juveniles feed primarily on insects.
Land iguanas are territorial and signal their aggression with head-nodding.
During mating a male literally catches the female and copulates with her. Following copulation, the female flees and finds a spot to dig a nest in which to bury a clutch of up to 25 eggs. On Plaza there are reports that land iguanas occasionally hybridize with marine iguanas . Apparently, male marine iguanas, in a mating frenzy, occasionally attack and rape female land iguanas. The land iguana in the photograph has the most unusual markings I have ever seen, and may very well be a hybrid.