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comment by user-inactivated
user-inactivated  ·  4388 days ago  ·  link  ·    ·  parent  ·  post: Understanding Evolution: The Infographic

True enough -- but it's also true that we can't claim to know what everything in our body does and why. Eye color, obviously, is not going to turn out to have some amazing significance, but a different example might.

Also, I'm interested in knowing if varying eye color is strictly a mutation or not, and if so how the various colors came about. Raises some questions for me.





thenewgreen  ·  4388 days ago  ·  link  ·  

People with lighter eyes tend to have more sensitivity to light. Couldn't there be a biological advantage to having darker eyes?

user-inactivated  ·  4388 days ago  ·  link  ·  

i think you are comparing with skin color aspects. eyes got lighter where people's food didn't have enough sun i believe. we might as well google it...

thenewgreen  ·  4388 days ago  ·  link  ·  

Perhaps not the best source but then, I'm about to watch a movie and am short on time.

user-inactivated  ·  4387 days ago  ·  link  ·  

Somehow I can't recall where I read it, I thought that was an essay by Frank W Sweet. Maybe I mixed eyes and hair color. There was one thing related to the fact people didn't have the usual proteins up north...