Marine Iguana Colony on Espanola This colony of Marine Iguanas is clinging to a nearly vertical offshore pinnacle. Marine Iguanas swim with their tails flattened using a side to side undulation of their bodies, with their legs held close to their sides. These iguanas are the only lizards that swim and feed in the ocean. Large Marine Iguanas can go as deep as 40' and stay under for an hour, although they seldom do so.  However, when frightened, they never enter the water. Punta Suarez, Espanola Island.
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