Travel + Leisure Golf Awards Oregon's Pronghorn with Top Ranking in Annual Nation's Best Places to Live List BEND, Ore., Jan.

By Bob Moen Associated Press PINEDALE, Wyo. -- The sophisticated motion sensors that line a one-mile stretch of highway in western Wyoming seem out of place. There are no pricey jewels, no rare artifacts, just desolate landscape.

As western states debate removing the gray wolf from protection under the Endangered Species Act, a new study by the Wildlife Conservation Society cautions that doing so may result in an unintended decline in another species: the pronghorn, a uniquely North American animal that resembles an African antelope.

By MARK STEVENSON By Mark Stevenson The Associated Press MEXICO CITY Mexico this week called on the United States to alter a plan to expand border fences designed to stem illegal immigration, saying the barriers would threaten migratory species accustomed to roaming freely across the frontier.

By Arthur H. Rotstein Associated Press CABEZA PRIETA NATIONAL WILDLIFE REFUGE, Ariz. -- Federal wildlife biologist Mike Coffeen is ecstatic these days. His efforts to save North America's fastest mammal -- the endangered Sonoran pronghorn - - are succeeding beyond expectations.