Just look at the story of UK's moth evolving to dark color due to pollution, and back: https://en.wikipedia.org/wiki/Peppered_moth_evolution https://en.wikipedi

Just look at the story of UK's moth evolving to dark color due to pollution, and back: https://en.wikipedia.org/wiki/Peppered_moth_evolution https://en.wikipedia.org/wiki/Peppered_moth_evolution