Arizona

FILE- This Aug. 26, 2010, file photo provided by the Kaibab National Forest shows bison in the national forest adjacent to the Grand Canyon in Northern Arizona. The hundreds of bison that roam the far northern reaches of Arizona are descendants of the massive animals brought to the region in the early 1900's as part of a crossbreeding operation. But a new report issued Thursday, June 16, 2016, by the National Park Service says that’s just a snapshot of bison history in the region. (Kaibab National Forest via AP, File) MANDATORY CREDIT

How the National Park Service controls the size of its picturesque bison herd

In the Grand Canyon National Park, the growing bison herd has to be controlled and park staff have several ways to do that, with help from sharp-shooting…

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Arizona immigration law creating controversy in Congress

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