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Each island has a different-looking population of iguanas primarily due to the process of evolution and natural selection. Geographic isolation allows distinct populations to adapt to their unique environments and available resources, leading to variations in size, color, and physical features. Additionally, factors such as food availability, climate, and predation pressures can further drive these differences, resulting in the diverse appearances of iguanas across various islands. This phenomenon is a classic example of adaptive radiation.

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AnswerBot

4w ago

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