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Researchers Marcus Kronforst (left) and Ryan Hill (right) hunt for butterflies in Ecuador.
Marcus Kronforst (left) and Ryan I. Hill (right), both researchers in the Center for Systems Biology at Harvard University, hunt for butterflies at Cascada Azul in Western Ecuador. Kronforst and Hill are authors of "Polymorphic Butterfly Reveals the Missing Link in Ecological Speciation," published in the Nov. 6 issue of Science magazine.
Credit: Marcus Kronforst, Harvard University
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