
Marine Iguanas (Amblyrhynchus cristatus) have a truly unique behavior: they dive in the cold waters surrounding the Galapagos islands to feed on submarine algae - sometimes up to 30ft deep.
Being cold-blooded, this lowers their body temperature dramatically, which is why Iguanas spend long hours sun bathing, before and after each dive.
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Nikon D2X, Nikkor 700-200 F2.8 VR, handheld
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Date: 15/10/2008
Location: Fernandina Island, Galapagos, Ecuador
Photographer: Arturo de Frias