WEIT 2012 Chap6

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HOW SEX DRIVES EVOLUTION

We start the reflexion about how sex drives evolution from the maladaptive traits for survival that we can observe in certain animals. A maladaptive trait for survival means that this trait is an inconvenience for the animal, for example it can make the animal easier to catch for his predator. The evident question that follows these observations is: How could it be the result of natural selection? Charles Darwin was very worried about this question because in fact it could show a failure in his natural selection theory. An obersavtion will bring Darwin on the way of the answer: only males suffer from this type of dismorphism. A theory has been created from this observation


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