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Howling wolves give clue to top dog By Melissa HogenboomScience reporter, BBC News Wolves choose to howl to maintain contact with each other, not because they are stressed Wolves howl more when a close companion or high
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Document Date: 2014-01-16 04:04:21
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Howling wolves give clue to top dog By Melissa HogenboomScience reporter, BBC News Wolves choose to howl to maintain contact with each other, not because they are stressed Wolves howl more when a close companion or high