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Right now, orangutangs live in rainforests and have lots of furs to keep them warm. They also climb and move in trees for protection. In thousands of years, Orangutangs will probably have to survive in the desert. They will do this by having to adapt to their surroundings and change their way of living. They will have less to no fur and be nocturnal, so they can survive the heat. They also need to have no sweat glands to maintain their body temperature. Since they will have no sweat glands, they also need to have less water consumption and because there is almost no water in a desert. In the desert, Orangutans might need developed salt glands to not die of thirst.