JOHN BEATTY / SCIENCE PHOTO LIBRARY JOHN BEATTY / SCIENCE PHOTO LIBRARY
Galapagos land iguana. View of a Galapagos land iguana (Conolophus pallidus) resting on a log. These large lizards inhabit the drier areas of Barrington Island, one of the Galapagos Islands belonging to Ecuador. They feed mainly on shrubs and cacti. They get most of the moisture they need from these succulent plants. In the morning they bask in the Sun to raise their body temperature, but they generally prefer shady areas during the hotter parts of the day. They sleep in burrows which help to conserve their body heat. These lizards used to exist in vast numbers on the Galapagos Islands, but the arrival of humans and their associated animals decimated their numbers.
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