Comments by "Seven Proxies" (@sevenproxies4255) on "Japanese Obsession with Double Eyelids (二重)" video.

I was always curious about the evolution of single eyelids and double eyelids. I don't really feel concerned about the aesthetics of it since both look fine to me. What intrigues me is why some humans developed single eyelids overtime while others developed double eyelids. Certain physical features in humans aren't present merely by accident after all. They exist because there was some sort of natural benefit to it. I also think that this biological perspective makes it easier for me to appreciate the uniqueness of different physical features in different ethnic groups. To me it's like these features are trying to tell a story of where these ethnicities come from and what enviromental and biological factors shaped them into how they look today.
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@ian_s7481 Uh no? It doesn't disprove evolution at all. It proves that evolution take different pathways depending on what enviromental influences look like.
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@qee540 Clearly you don't know what evolution means
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@GoopyDuperdaughter No, my wording is entirely correct. Nothing EVOLVES at random. But MUTATIONS occur randomly. Evolution = mutations that survive and spread over several generations. Mutations happens in individuals. Evolution is something that happens in groups only. Meaning that such mutations must either have a neutral impact on the sexual reproduction of the subject, or it consist of a benefit for the subjects survival and sexual reproduction.
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