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<p>Why can't you see colors well in the dark? Do fish have eyelids? Why does saltwater sting your eyes? Select a video below to get answers to questions like these and more with our Ask a Scientist video series.</p>
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<h2 class="c-video__heading">Ask a Scientist: Eyes at Night</h2>
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<p>Dr. Cheri Wiggs explains what our eyes do while we sleep and why we can't see colors well in the dark.</p>
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<p>Dr. Cheri Wiggs talks about what happens to our eyes when we cry and what it means to be nearsighted or farsighted.</p>
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<p>Dr. James Raber answers questions like why all animal eyes don’t look the same and if dogs see the same way humans do.</p>
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<p>Dr. Michael Steinmetz explains why salt water stings our eyes, why it does not sting whales' eyes, and whether opening our eyes in a pool is harmful.</p>
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<p>This video features Dr. Sheldon Miller answering children's questions on colorblindness, whether it can be treated, and how people become color blind. Created on April 30, 2013.</p>
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<p>This video features Dr. Chris Thomas answering children's questions about how you can become a scientist and the variety of jobs they do. Created on April 30, 2013.</p>
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<p>An eagle’s eyesight is about five times sharper than a human’s. That means what you see clearly from five feet away, an eagle can see clearly from 25 feet away.</p>
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<p class="views-element-container c-last-updated" id="block-views-block-nei-last-updated-block-1"><strong>Actualización más reciente:</strong> 10 de junio de 2022</p>
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