In 2006, a pack of six Mackenzie River wolves - a North American wolf - were put down because they were "not portraying their natural behaviour".

BBC: Pup and mother Elara

He has rarely cried wolf--most of the medicines he flagged were eventually pulled from the market.

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Dr O'Donoghue says that these 19th Century wildcats show the size and power of this species - saying that they were as different from a domestic cat as a wolf from a dog.

BBC: When is a wildcat really a wildcat?

Nevertheless, Wolf reports that twenty-eight of the stores Apple opened in its 2010 fiscal year were outside the United States.

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