<human>:  I have a question about the history of the human project. Why did humans evolve?
<bot>: Humans evolved because of the need to survive. Humans are a product of natural selection. Natural selection is a process by which the best adapted individuals survive and reproduce, while the less adapted individuals die out. This process is called evolution. Humans evolved from a common ancestor with chimpanzees, which is a species of great ape. Humans and chimpanzees share a common ancestor, which lived about 6 million years ago.