The swimming lizard by mtchm on Flickr.
The Marine Iguana (Amblyrhynchus cristatus) is an iguana that has the unique ability among modern lizards to live and forage in the sea. It is found only on the Galapagos Islands, but has spread to all the islands in the archipelago, and is sometimes called the “Galapagos marine iguana”. It mainly lives on the rocky Galapagos shore, but can also be spotted in marshes and mangrove beaches.
On his visit to the islands, Charles Darwin was revolted by the animals’ appearance, writing:
The black Lava rocks on the beach are frequented by large (2-3 ft) most disgusting clumsy Lizards. They are as black as the porous rocks over which they crawl & seek their prey from the Sea. I call them ‘imps of darkness’. They assuredly well become the land they inhabit.