一些中心人员说狼嚎手机铃声可能是唯一由野生墨西哥大灰狼发出的叫声的录音之一。
Some at the center say the howl ringtone might be one of the only recordings of the Mexican gray Wolf in the wild.
在墨西哥,调查者估计所存活的灰狼数量不足10只。
In Mexico, researchers estimated that fewer than 10 greys survive.
在墨西哥,调查者估计所存活的灰狼数量不足10只。
In Mexico, researchers estimated that fewer than 10 greys survive.
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