It was noted that the video does not show the Zeta breathing, but their breathing does not cause a heaving chest because their lungs work asynchronously, one breathing in while the other exhales.

注意到视频没有显示齐塔人在呼吸，但是他们的呼吸不会造成胸腔的起伏因为他们的肺不同时工作。其中一个吸入的时候另一个呼出。