The appeal of symmetry

From: The Boston Globe (Boston, MA) | Date: December 5, 1994| Author: | Copyright information

When a female scorpion fly goes mate-shopping, she has an eye out for the males with the most symmetrical wings. Female swallows almost always go for the guys whose tails form the most perfect V-shape.

And the appeal of things symmetrical is not limited just to members of the opposite sex.

When a German scientist in the 1950s put birds, monkeys and other animals into cages with an assortment of hand-made cards, to see what they would do with objects that were expected to be meaningless to them, what happened was anything but random.

They spent the longest time gazing at the cards that had ...

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