SAM OGDEN / SCIENCE PHOTO LIBRARY SAM OGDEN / SCIENCE PHOTO LIBRARY
Land iguana (Conolophus sp.). This large lizard inhabits the drier areas of the Galapagos Islands, Ecuador. It feeds mainly on shrubs and cacti, getting most of the moisture it needs from these succulent plants. In the morning it basks in the Sun to raise its body temperature, but it generally prefers shady areas during the hotter parts of the day. The land iguana sleeps in a burrow to help it to conserve its body heat. This lizard used to exist in vast numbers on the Galapagos Islands, but the arrival of humans and their associated animals decimated the population.
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