Minnesota Public Radio slideshow:
Scientists hope lamprey 'perfume' can help reduce their numbers
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After 15 years' work, Peter Sorensen and his colleagues have isolated and synthesized a pheromone they say will attract large numbers of lamprey, to improve the performance of various control methods. (Photo courtesy Peter Sorensen)

After 15 years' work, Peter Sorensen and his colleagues have isolated and synthesized a pheromone they say will attract large numbers of lamprey, to improve the performance of various control methods.

(Photo courtesy Peter Sorensen)
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