Human skull evolution (for Discover magazine). Mosaic illustration of a human skull for May 2011 cover of Discover magazine (USA) 3

Human skull evolution (for Discover magazine). Mosaic illustration of a human skull for May 2011 cover of Discover magazine (USA)

Human skull evolution (for Discover magazine). Mosaic illustration of a human skull for May 2011 cover of Discover magazine (USA)

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