There is a popular image of human evolution that you’ll find all over the place … On the left of the picture there’s an ape … On the right, a man … Between the two is a succession of figures that become ever more like humans … Our progress from ape to human looks so smooth, so tidy. It’s such a beguiling image that even the experts are loath to let it go. But it is an illusion.

Wood, Bernard. Who are we?, New Scientist, 2366, Oct. 26, 2002, p. 44.

Bernard Wood is a professor of human origins at George Washington University.

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