Except that it isn't. And "spontaneous evolution" is a very controversial hypothesis, which is not widely accepted. The related ideas of punctuated equilibrium and saltation are likewise controversial. The evolution of the eye is no mystery at all; it's quite well understood. And even if it weren't, it certainly isn't the root of the punctuated equilibrium hypothesis or its related hypotheses. The idea of spontaneous evolution has been around even longer than Darwin's theory of natural selection (Lamarck was a notorious proponent of the notion, in that his own hypothesis suggested that each and every generation is sufficiently evolved to suite its environment that any particular situation which any given organism might encounter might be solved in its offspring; this, of course, is not how evolution works).
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Ice Age Civilization
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