- They're searching for a rather unusual food -
它们正在寻找一种很特别的食物 - moths.
飞蛾 - Millions have flown up here to escape the heat of the lowlands
为了躲避低洼地带的炎热 数百万只飞蛾抵达此地 - and they're now roosting among the rocks.
栖身于岩石缝隙之中 - Moths may seem a meager meal for a bear,
飞蛾似乎并不足以填饱熊的肚子 - but their bodies are rich in fat
但它们身体内富含脂肪 - and can make all the difference in a bear's annual struggle for survival.
直接关系到灰熊每年冬天的生存能力
and they're now roosting among the rocks. 栖身于岩石缝隙之中
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