grizzly bear, ursus arctos, usurps bison calf, bison bison ... et al 2001.pdf · grizzly bear,...
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- Grizzly Bear, Ursus arctos, usurps Bison calf, Bison bison ... et al 2001.pdf · Grizzly Bear, Ursus arctos, Usurps Bison Calf, Bison bison, Captured by Wolves, Canis lupus, in Yellowstone
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