Darwin and the Complex Eye - Creationist Myth
Many creationists quote Darwin as saying the eye was too complex to have evolved. However, the quote actually EXPLAINS how the eye evolved, if you use the FULL quote and not just pieces of it.
The quote fragment used by creationists is:
"To suppose that the eye, with all its inimitable contrivances for adjusting the focus to different distances, for admitting different amounts of light, and for the correction of spherical and chromatic aberration, could have been formed by natural selection seems, I freely confess, absurd in the highest possible degree."
However, Darwin didn't end there! The actual quote keeps going. Darwin then says:
"Yet reason tells me, that if numerous gradations from a perfect and complex eye to one very imperfect and simple, each grade being useful to its possessor, can be shown to exist; if further, the eye does vary ever so slightly, and the variations be inherited, which is certainly the case; and if any variation or modification in the organ be ever useful to an animal under changing conditions of life, then the difficulty of believing that a perfect and complex eye could be formed by natural selection, though insuperable to our imagination, can hardly be considered real."
In fact, the numerous gradations DO exist in modern day animals. From the earthworm to the bird, from the insect to the human, there are all manners of light sensors in all shapes and sizes, all evolved to meet the needs of the creature in which they reside.
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