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The Galapagos marine iguana ( Amblyrhynchus cristatus) is a reptile that is found exclusively on these islands and that feeds on algae. It can stay submerged up to a depth of 9 m, although it usually feeds in the intertidal coastal zone.
The land iguana is a species of lizard of the family Iguanidae, and one of the three species of the genus Conolophus. It is endemic to the Galapagos Islands. During the day, these animals spend many hours sunbathing on hot rocks and at night they take refuge in holes in the ground to conserve heat. They are fundamentally herbivorous, although sometimes they feed on insects, centipedes and decaying corpses.