时差N小时 人类语言的起源(下)（在线收听）

Like human speech, lip smacking requires quick, controlled movements of the lips, tongue, jaw, and hyoid bone, which supports the larynx and tongue.

与人类语言一样，灵长类的唇动需要控制嘴唇、舌头、下颚以及支撑喉、舌的舌骨之间的快速运动发声。

For example, if you’ve been to a zoo you’ve probably seen chimps making loud lip smacks and buzzing sounds, like blowing a raspberry.

举个例子，如果你去过动物园，你可能会发现大猩猩发出很大声的咂嘴声和嗡嗡声，像是故意发出嘘声。

Scientists believe that these sounds are a controlled form of chimp communication.

科学家相信这些声音是大猩猩沟通的一种形式。

This research doesn’t quite solve the puzzle of the evolution of human speech.

这项研究并不能完全解开人类语言进化的谜团。

But it is a fascinating clue that the way we speak may have developed from a combination of sounds produced by the vocal cords and by rapid, controlled movements of the vocal tract, including lips, tongue and jaw.

不过该研究却提供了一个很有价值的线索，即人类说话的方式可能是从声带和声道（由嘴唇、舌头和下颚组成）的快速运动发出的声音发展而来的。