What Darwin Didn't Know: The Modern Science of Evolution

Evolution Doesn't Repeat, but it Rhymes (1x13)

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Convergent evolution occurs when natural selection causes different species to evolve in similar ways. Does this mean that evolution follows a predetermined path? Focus on the recent debate between scientists Stephen Jay Gould and Simon Conway Morris. Gould perceived contingencies and unpredictability, but Conway Morris saw repetition and consistency. How do these views relate to human evolution?