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Caption: The green peach aphid (Myzus persicae) feeds on a large number of different plant species. While it is susceptible to some plant toxins, it appeared not to respond to the glucosinolates under selection by the cabbage and the turnip aphid. This image relates to a paper that appeared in the Oct. 5, 2012, issue of Science, published by AAAS. The paper, by Tobias Züst at University of Zürich in Zürich, Switzerland, and colleagues was titled, "Natural Enemies Drive Geographic Variation in Plant Defenses."
Credit: Image courtesy of Tobias Züst
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