/u/kuuzo's posts in /r/askscience
38 upvotes
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30 upvotes
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Does the human immune system weaken in the short term if you are not around the normal minor viruses and bacteria of other humans?
27 upvotes
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What is the evolutionary or biological benefit of the oesophagus and trachea being right next to each other?
19 upvotes
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12 upvotes
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11 upvotes
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7 upvotes
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6 upvotes
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3 upvotes
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