Science2 - 00077

Science2 - 00077 - Untitled Evidences of Evolution In all...

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Untitled Evidences of Evolution In all this, it may be said, the fact of evolution has been taken for granted, but what are the evidences? Perhaps it should be frankly answered that the idea of evolution, that the present is the child of the past and the parent of the future, cannot be _proved_ as one may prove the Law of Gravitation. All that can be done is to show that it is a key--a way of looking at things--that fits the facts. There is no lock that it does not open. But if the facts that the evolution theory vividly interprets be called the evidences of its validity, there is no lack of them. There is _historical_ evidence; and what is more eloquent than the general fact that fishes emerge before amphibians, and these before reptiles, and these before birds, and so on? There are wonderfully complete fossil series, e.g. among cuttlefishes, in which we can almost see evolution in process. The pedigree of horse and elephant and crocodile is in general very convincing, though it is to be confessed that there are other cases
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This note was uploaded on 10/05/2009 for the course MATH 205 taught by Professor Popescu,c during the Fall '08 term at UCSD.

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