translation.en: We're a visual species. When scientists first realized that bats were actually using sound to be able to fly and orient and move at night, we didn't believe it.
translation.zh: 我们是视觉物种。当科学家们第一次意识到 蝙蝠竟然凭借声音来飞行 并能在夜间定位和移动，我们无法相信。