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November 7 2013

Female lizards with beards not attractive, report other lizards


Somewhere, a spurned female fence lizard is feeling blue about her beard.

Ecologists at Penn State University reported this week that male fence lizards discriminate against female fence lizards sporting blue “beards” – dabbles of bright azure scales on their necks and along their sides – preferring instead to lavish their attention on beardless females. That’s a find that scientists say may suggest that natural selection will in time trim out female lizards with too much of a beard.

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