The evolution of humankind An opposing digit, the use of tools Inventing the wheel, exploring space Brain size still developing Two men and a referee Foam gloves and a silver cup Devolution about to begin Round one, ding, ding! A perfect right to the other's chin No tools, wheels, or exploration Brain size still developing The evolution of humankind The evolution of humankind The evolution of humankind The evolution of humankind
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