Once numbering in the millions, the North American Bison thrived on Colorado's Great Plains for centuries until overhunting and other environmental pressures brought them to the brink of extinction in the nineteenth century. Thanks to reintroduction efforts in the twentieth century, several bison herds now roam Colorado, and ranchers even raise them for meat.
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Yellowstone National Park
October 18. 2008
Creative commons license: https://creativecommons.org/licenses/by-nc-nd/2.0/