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Xi Zhinong

Blue sheep, named for the sheen on their coats, are foot-sure in mountainous terrain, such as this hillside in northwest China's Qinghai Province.

Tibetan antelope are poached to make luxury wraps, called shahtooshes, from their soft, warm underfur. Four of the animals are killed to make a single shahtoosh—Persian for “king of wools.”

On the move, a herd of Tibetan antelope raises the dust in China’s Qinghai Province.

Global demand for shahtoosh wiped out 90 percent of the Tibetan antelope population during the previous century.