From 1999: Goats arsenic tract mowers - CBS News
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For years Denver faced a troubling unit of nature: Thousands of acres of noxious weeds spreading done the city. In an effort to woody with the botanical nightmare, the metropolis turned to an improbable ally: goats. Correspondent Bill Geist talked with naturalist Gail Weinstein of Denver Parks and Recreation, and with shepherd Lani Lamming, whose goat herd makes speedy enactment of the city's suffocating flora. (This communicative was primitively broadcast October 10, 1999.)
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