Bison and Willows (IMAGE)

Oregon State University

Bison and Willows

Caption

In Yellowstone's Lamar Valley, bison congregate in the summer and graze not only on grass but also on willow, cottonwood, and aspen. These bison are eating willows in the foreground, while in the background some emerging willow thickets are visible.

Credit

Luke Painter, Oregon State University

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