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Throwing Paint On Almost Perfect Mona Lisa Portrait.
Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To Posted by Alexander on July 9, 2001 19:15:16 UTC |
Remember, dolphins did not evolve from inorganic dirt directly - there were fish around, and some specie of fish from which dolphins evolved. Most likely this specie had good hearing abilities (many fish communicate by ultrasound) and some of them may have noticed that if their "clicks" quickly echoes back, soon after continuing to move in echo direction they find an obstacle or some other object (food, predator, etc.). This is a great advantage for survival - to associate an echo with some object. And it does not take much "brain" to recognize that fast and strong echo always corresponds to closer and bigger object versus delayed and weak echo which corresponds to far and small one. So, evolution is not a creating an extraordinary feature overnight - it is gradual process of slight mutations generation after generation, and selection of "fittiest".
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