Text adapted from and photograph shot on assignment for, but not published in, "Return of the Gray Wolf, " May 1998, National Geographic magazine

文字说明摘自《国家地理》杂志1998年5月文章《灰狼的回归》“Return of the Gray Wolf”， 本照片专为本文拍摄，但最终并未随文刊出。

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Most of the gray wolf pups born in Yellowstone National Park last year have died, possibly because of a dog disease, a federal wolf expert says.

据有关专家日前表示，之所 以出现这种情况，可能是由于一种犬类疾病的影响。

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The Ethiopian highlands are home to two canine species that look deceptively similar, the gray wolf and the golden jackal, according to a new study in the journal PLoS One.

《公共科学图书馆》杂志（PLoS One, Public library of science one）近日发布的一项研究表明，埃塞俄比亚高原是两种容易混淆的犬科动物——灰狼（the gray wolf）和金豺（the golden jackal）共同的家园。

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The Mexican wolf or El Lobo, a subspecies of the gray wolf, once roamed freely through the oak-woodlands of Arizona, New Mexico, Texas and Mexico.

CNN: Mexican wolf prevails in court

In the early 20th century, the gray wolf was often hunted by settlers in the western United States who said the predators were killing off their livestock.

CNN: Planet in Peril: Environmental Coverage - Special Reports from

The federal agency said that it will review the plan to ensure that it allows for the sustained recovery of gray wolf populations in the Midwest.

CNN: Minnesota wolves considered for delisting