ANSWERS: 2
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No. Usually it's because the whale has lost the ability to navigate properly due to a brain disease or some such thing. As for the idea of an 'attempt' at evolution, evolution is not a conscious decision. It's just happening all the time.
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No. There is no such thin as an attempt at evolution. There is no agency that guides evolution. Evolution is just a natural process that happens like erosion or plate tectonics. +5
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