<human>:  How did the theory of the Origin of Species Activity come about?
<bot>: Charles Darwin was the first to propose the theory of evolution by natural selection. In his book, On the Origin of Species, he outlined the evidence he had collected that supported the idea that all living things are related by common ancestry. He also described the mechanism of evolution by natural selection, which is the idea that species evolve through the process of random genetic mutation and natural selection.