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Researcher Nicola Chamberlain smiles as she collects "dos machos," two male butterflies.
Researcher Nicola L. Chamberlain of the Center for Systems Biology, Harvard University, hunts for butterflies in Ecuador. She has just collected "dos machos," or two male butterflies for the preference study. Chamberlain is an author of "Polymorphic Butterfly Reveals the Missing Link in Ecological Speciation," which appears in the Nov. 6, 2009, issue of Science magazine.
Credit: Ryan I. Hill, Harvard University
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