wolves wolves

The alpha female of the Canyon Pack at Yellowstone National Park sustained a gunshot wound and was euthanized last month near Gardiner, Mont. Neal Herbert/Yellowstone National Park hide caption

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Neal Herbert/Yellowstone National Park

Two wolves, as caught in night-vision footage by a game camera in West Jutland, Denmark. Scientists say that since 2012, they have confirmed at least five different wild wolves in the country — four males and one female. Courtesy of Natural History Museum Aarhus hide caption

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Courtesy of Natural History Museum Aarhus

Got spaghetti? Dogs digest starch more efficiently than their wolf ancestors, which may have been an important step during dog domestication. Lauren Solomon/iStockphoto.com/Nicholas Moore /Courtesy of Nature hide caption

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Lauren Solomon/iStockphoto.com/Nicholas Moore /Courtesy of Nature