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The Mystery of North America's Black Wolves

Color Variations in Gray Wolves Bolstered by Interbreeding With Domestic Dogs

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Despite their common name, gray wolves (Canis lupus) are a colorful bunch of canines. Their coat color can range from white to gray to black and is regulated by a complex set of genetic factors.
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North American Gray WolfWolf Pups HowlingPair of Wolf PupsBlack and White Wolves
Sibling Wolves
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