The interesting thing about it is it suggests there are universal principles that can underpin complex vocal systems.

有趣的是复杂的发声体系背后蕴含着一些普遍的规则。

The scientists said the loss of these tissues resulted in a stable vocal system in humans that was critical to the development, or evolution, of human speech.

科学家们表示，这些组织的缺失导致人类拥有了一个稳定的发声系统，这对人类语言的发展或进化至关重要。

The fact that the two monkey species seem to speak the same language, if you will, even though they diverged from their last common ancestor some 3 million years ago, suggests that this vocal warning system is hardwired.

事实上，这两种猴子似乎说着同一种语言，如果你愿意的话， 即使它们在大约 300 万年前从它们最后的共同祖先中分离出来，这表明这种声音警告系统是天生的。