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        9-12

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        Auditory, Visual

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        Part of Evolution Series
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        Leafy Spurge

        This video segment from Evolution: Extinction! explores the invasion of western U.S. grasslands by a Eurasian weed called leafy spurge. Brought to this country in the 1800s, leafy spurge has progressively taken over grazing land from the native grasses. Ranchers have begun to eradicate the weed, using one of its natural enemies: the flea beetle.

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