Marine Iguana

The marine iguana (Amblyrhynchus cristatus), also known as the sea iguana, saltwater iguana, or Galápagos marine iguana, is a species of iguana found only on the Galápagos Islands (Ecuador). Unique among modern lizards, it is a marine reptile that has the ability to forage in the sea for algae, which makes up almost all of its diet.[2] Large males are able to dive to find this food source, while females and smaller males feed during low tide in the intertidal zone.[3] They mainly live in colonies on rocky shores where they bask after visiting the relatively cold water or intertidal zone, but can also be seen in marshes, mangrove and beaches.[4] Large males defend territories for a short period, but smaller males have other breeding strategies. After mating, the female digs a nest hole in the soil where she lays her eggs, leaving them to hatch on their own a few months later.[5] Marine iguanas vary in appearance between the different islands and several subspecies are recognized.[6] Although relatively large numbers remain and it is locally abundant,[7] this protected species is considered threatened, primarily from El Niño cycles, introduced predators and chance events like oil spills.[1]