Why Do Your Eyes Water When You Slice Onions?
Why Do Your Eyes Water When You Slice Onions? Onions contain strong-smelling oil. When the onion is peeled and cut, this oil escapes into the air in the form of vapor...
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Why Do Our Noses Run When We Cry?
Why Do Our Noses Run When We Cry? When a person cries, tears make the nose run. Glands under our upper eyelids are producing tears all the time. These tears are...
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How Many Eyelids Does a Camel Have?
How Many Eyelids Does a Camel Have? A camel’s large, dark eyes are protected by three eyelids. The two outer eyelids have long, thick eyelashes that protect the...
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Do Fish Ever Sleep?
Yes, fish sleep. Because fish have no eyelids, they cannot close their eyes, and it may look as though they never sleep. Many of them sleep by simply remaining very...
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Do Fish Sleep?
Yes, fish do sleep. Because they have no eyelids, they cannot close their eyes, and it may look as though they never sleep. Many fish sleep by simply remaining very...
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