Science Questions

If symmetry is sexy, what about flatfish?

Sun, 15th Feb 2009

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Tina Bearkat asked:

If symmetry and attractiveness go hand-in-hand what does it mean for the flounder, those fishes at the bottom of the sea?


Robert - Symmetry is good but it isnít always good.  Like everything else in evolution when selection is strong enough it will change things.  The benefits of being able to see for a flounder clearly outweight the benefits of symmetry and so evolution has shaped it.  It yet again shows there are many different ways of surviving and reproducing in nature.


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