事实证明，面部视觉的感觉是通过耳朵传递的。

The sensation of facial vision, it turns out, really goes in through the ears.

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事实上，有一些品种的蝙蝠不使用回声定位，而是依靠视觉来导航，但对很多蝙蝠来说，它们的视觉太弱了，确实不能依靠。

Actually, there are some species of bats, the ones that don't use echolocation that do rely on their vision for navigation, but it is true that for many bats, their vision is too weak to count on.

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事实上，在一些已知的案例中，母鸟有时会因为孩子被碰触而弃巢，仅仅因为它们是通过视觉而不是嗅觉发现的。

Indeed, in very few known cases, parent birds sometimes abandoned their nests from something touching their young, just because they noticed it by sight, not smell.

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