ISLE ROYALE, MI - In what is believed to be the first National Parks action of its kind on Isle Royale, park officials said today they had to kill one of the island’s wolves after it became too ...

After they were captured in Canada, the wolves released in Yellowstone National Park initially stayed in acclimation pens, like this wolf pictured in the Crystal Creek pen on Jan. 26, 1996. (Photo ...

Getting your Trinity Audio player ready... Colorado’s wolves returned to areas near the Utah border this month, though most wolf activity remained confined to the state’s more mountainous terrain. At ...