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Evolution, dogs, and drugs

For the basics of evolution, read this first.

The idea of a world with life as we know it that doesn’t evolve is not plausible. The fact that all life on Earth appears to be descended from a common ancestor is a fact that we know about how life evolved, not a part of the definition of the process itself. Even if some god created a world full of already-complex life, it would still then, given that mutations exist, take a specific effort on the creator’s part to prevent evolution by natural selection from occurring after that.

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