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Dr. Oz in the Galápagos Islands

By Dr. Mehmet Oz
Oprah Radio  |  February 11, 2009
Blue-Footed Booby

The blue-footed booby is an example of what happens when natural selection and sexual selection are pitted against each other. The male booby's blue feet make him more attractive to females, but the coloration has a downside—he is more noticeable as prey.

Photo Stephen K. Mack
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