FILE-In this April 21, 2014, file photo, a group of desert bighorn sheep climb near the Checkerboard Mesa in Zion National Park in Utah. Zion National Park visitors are being asked to alert wildlife biologists if they encounter bighorn sheep coughing a lot. Excessive coughing is a symptom of pneumonia and park officials and the state Division of Wildlife Resources said Tuesday, July 31, 2018, that a bacterium commonly associated with pneumonia was found July 20 in a bighorn sheep ewe. (Francisco Kjolseth/The Salt Lake Tribune via AP, File)
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