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Tracking grizzly bears

Clip | 4m 27s

Less than half a century ago, grizzly bears were on the path to extinction. Now a group of biologists at Yellowstone National Park are placing a watchful eye of grizzly populations by outfitting them with collars to track their every move. By knowing their whereabouts, biologist can help protect grizzlies from existing threats.

Aired: 02/20/17

Rating: NR

Video has closed captioning.

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