I'd like to know how something as complex as an eye could evolve? First off, how would the being even know light existed.. Second, the eye isn't functional unless it has all the part involved immediately... If the eye slowly was formed trough generations then all generations leading up to it would just have useless tissue/muscle sitting there with no purpose? This is just 1 example...
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Because the first "eye" was very basic and didn't have enough to meet the demands to survive in the changing world.
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What it started as was a collection of photoreceptors. Those gradually evolved into sensing color, then movement. The it started to sharpen images.
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Edited by SPRTN89: 3/18/2015 4:24:17 AMHow did the being ever know light was their? Then color? Or is it all based on luck and time
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Light has always existed in the known universe. Presumably, these proto-organisms were drawn to it to gather energy, and as such, the ones who could track it fared better. Problem with things is that people forget that terms are arbitrary. Colors are completely a creation of human minds. And it's not..."Luck". It's a combination of favorable genetic changes. Early lifeforms can do things like that with remarkable speed, but the higher you go in the complexity, the slower the changes manifest.