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In the first picture I put a present day White cheeked Spider monkey in the tropical rain forests of Brazil climbing trees and having fresh water to drink in the wild. But in the second picture I put a White Cheeked spider monkey in the future where it has two humps on its back! This is because humans have cut down most of the trees in the world and they polluted the air with smoke so there will be very less fresh air. So the monkey will have to use one hump to store air in it. The second hump on the back is for the monkey to store water in it. This is because people are polluting the oceans and streams with garbage and there is very little fresh water left in the earth. Lastly all plants and trees also died because there was less fresh air and water.