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(Continued from page 1)

Luke Lea
Online Comment

Color Us Evolved
It’s funny that the researcher thinks in terms of evolutionary advantages being a cause of the difference, but then he only goes back as far as our hunter-gatherer period [“50 Shades of Gray Matter,” about gender differences in color vision]. As if at no other point in our evolution could we have needed that distinction. It may in fact have been a difference that simply made no difference, “piggybacking” as it were, as an unhelpful but non-hindering side effect of gender differentiation.

Yvonne Robinson
Novato, California

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