A beautifully illustrated guide to gray wolves from wolf expert Brenna J. Cassidy.
You might know that gray wolves live in packs, but there's so much more to learn about these incredible predators! Find out what makes wolves howl, why wolves sniffing each other's butts is their way of shaking hands, and how some wolves in Yellowstone National Park used thermal activity to heat their den! You'll also witness the incredible relationship...
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