Aversion to Foul Odors

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Human Uniqueness Compared to "Great Apes":

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Behavior

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Humans across all cultures show an aversion to foul odors. While the identity of some of those odors varies across cultures, there are universally avoided foul odors, such as that of rotting meat or excrement. Great apes do not appear to show the same aversion to foul odors and, in fact, sometime will manipulate and eat their own excrement in captivity.