The smell of human flesh deteriorating is very distinct, but scientists have a hard time pinning down what exactly is causing that smell.
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High-affinity Olfactory Receptor for the Death-associated Odor Cadaverine
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“Cadaverine and putrescine, two diamines emanating from decaying flesh, are strongly repulsive odors to humans but serve as innate attractive or social cues in other species. Here we show that zebrafish, a vertebrate model system, exhibit powerful and innate avoidance behavior to both diamines, and identify a high-affinity olfactory receptor for cadaverine.”
The Smell of Death
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“The physics governing sound and light is much better understood and easier to manipulate than the physics governing volatile aromatic compounds, which disperse and persist in ways that are difficult to predict.”
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