Darwin's theory of evolution actually stated that humans and monkeys evolved from the same ancestor. Think about your great-grandparents. They might have a lot of great-grandchildren all related to each other but may look very different depending on what each off-springs parents looked like.Humans, monkeys, apes, and even lemurs have the same "great grandparents"but have changed overtime as they each have developed different ecological niches and followed different paths over millions of years.

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