Eyes absolutely are the result of evolution.
Quote:
|
Originally Posted by Mercedes Benzene
Where could an eyeball have come from?
|
Certain cells reacted differently to light than dark. It may even go further back and the distinction could be heat/cold. However, this would have provided some sort of advantage, been passed on to offspring, and the trait would increase in strength.
Quote:
|
-Why would a light sensitive spot have been necessary?? -What would necessitate the need for such a spot??
|
Perhaps more important would be when the light spot goes away. If you're suddenly shadowed by a large predator, noticing the shadow could be quite an advantage when it comes to escaping... even on a molecular level. I don't want that phage to eat me... I'd better be able to see the difference in light as they approach so I can high-tail it out of here.
Through the years, those with the more advanced light/dark recognition systems became more dominant, spreading, and further enhancing their abilities with each generation.
