When a recording of the barklike calls emitted by a vervet encountering a leopard was played back to other vervets, it sent them scampering into the trees.

当长长尾黑颚猴遇到豹子时发出类似树皮般的叫声的录音播放给其他长尾黑颚猴时，它们就会跑进树林里。