evolution
polyploidy.
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Evolution is the belief that within time organism can adapt to survive in their environment. Darwin's Theory of Evolution states that to cope with surroundings, organism adapt to suit their needs to survive. For example, stingrays were able to over time change their appearance to look like the sand. When a fish swims by, it eats it. It is interesting to see how far organisms came since prehistoric times. If anything, compare some of the real animals from "Ice Age" and compare to current animals.
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