These dinosaur-like reptiles used to roam freely. When people started bringing their cats and dogs to the islands the iguanas became their prey and are now an endangered species. Little Water Cay is one of the places where these creatures can live in peace. The male iguana has spine-like scales in a ridge along his back (reminiscent of the Gruffalo?) while the female has a smooth ridge. They feed on berries, fruit and leaves and they live in shallow burrows.