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http://www.news.cornell.edu/releases/Nov01/DIP.flowers.hrs.html
quote:ITHACA, N.Y. -- When some insects zero in on a flower for nectar, their ultraviolet vision is guided by a bull's-eye "painted" on the plant by chemical compounds. Now, chemical ecologists at Cornell University have discovered a second job for these compounds: warding off herbivores. |
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