Evolution of the Eye

Evolution of the Eye - Evolution of the Eye I-spy...

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Evolution of the Eye I-spy Biological Anthropology Ithaca College Ithaca, NY
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Natural Selection Through the process of natural selection, evolutionary history has reveled the emergence of many different types of eyes The simple light-sensitive spot on the skin of some ancestral creature is believed to have help evade predators which resulted in a survival advantage that led to this natural selection Fossil records suggest that the development of the eye is considered to have evolved some 540 million years ago Much of this evolution occurring in the last few million years
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The Eye Light receptor molecules are structurally similar in all visual systems. This suggest that the composition of a receptor cell may vary which preceded the evolution of different eyes. The ancestral photosensitive cell likely contained a rhodospsin like molecule and a simple G protien. Thus These simple photosensitive cells may have then evolved into image forming eyes.
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This note was uploaded on 04/16/2008 for the course ANTH 104 taught by Professor Davidturkon during the Spring '07 term at Ithaca College.

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Evolution of the Eye - Evolution of the Eye I-spy...

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