In this Feb. 10, 2006, file photo provided by Michigan Technological University, a gray wolf is shown on Isle Royale National Park in northern Michigan. An advance copy of a wolf-tracking report obtained by AP shows the number of gray wolves at Isle Royale National Park is down to 16, the lowest number since the late 1990s, and there may be only one or two females left. (AP Photo/Michigan Technological University, John Vucetich)
Read the article: Next stop for Isle Royale wolves: Extinction?
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