What is Evolution?

 Evolution to me is the changing of a species over time in order to better adapt to their surroundings, often time leading to a completely new, or several completely new species.

I believe evolution to be a fact in the sense that we can see the fossils and the similar bone structures in organisms and assume they most likely diverged at some point. That being said, it is hard to be absolutely 100% sure about anything in life, and there's always a chance that something could have a very strange and roundabout explaination that is not necessarily the simplest. 

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