Theories for this strange mass behavior include naval sonar interfering with whale echolocation, or animals trying to escape polluted water, but to this day, nobody knows.

这种奇怪的群体行为的理论包括干扰鲸鱼回声定位的海军声纳，或试图逃离污染水域的动物， 但直到今天， 还没有人知道。