Progressive Evolution?
Professor Dawkins’s great intellectual conviction is that evolution is progressive, and tends to lead to more and more complexity. Species, in his view, often arrive at similar solutions to evolutionary puzzles — the need for ears, eyes, arms or an octopus’s tentacle. And, often although not invariably, bigger brains. So the saber-toothed tiger shows up as a cat in Europe and Asia, and as a marsupial in South America. Different species seized on the same carnivorous solution. (He most certainly does not, however, view evolution as progressing toward us, that is humans — were we to disappear, some other species most likely would fill our evolutionary niche.)
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