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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute.
It’s true that if you eat a lot of what’s fondly dubbed1 the stinking2 rose, others might notice a faint whiff of eau de garlic in your sweat. But even the pungent3 bulb can’t mask your natural scent4. In fact, scientists from the Monell Center in Philadelphia say that an individual’s scent is impossible to mask through food. They published this research in the online journal Public Library of Science One.
All mammals have specific genetically-determined smells, known as odor types. Special sensor5 mice were trained to recognize other mice by their odor types. Then the odiferous mice were fed diets designed to mask their odors. They did smell different when they ate different food. But even with the dietary changes, the sensor mice could pick out the individual, personal smells.
This means our odorprint may be as individual as our fingerprints6. Scientists say if animals can determine individual scents7, then sensors8 could be designed to do the same thing. This could lead to new devices to detect those odorprints. Which means that future criminals may have to worry about wiping away fingerprints and whatever body odor they leave behind.
Thanks for the minute for Scientific American's 60-Second Science. I'm Cynthia Graber.
1 dubbed | |
v.给…起绰号( dub的过去式和过去分词 );把…称为;配音;复制 | |
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2 stinking | |
adj.臭的,烂醉的,讨厌的v.散发出恶臭( stink的现在分词 );发臭味;名声臭;糟透 | |
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3 pungent | |
adj.(气味、味道)刺激性的,辛辣的;尖锐的 | |
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4 scent | |
n.气味,香味,香水,线索,嗅觉;v.嗅,发觉 | |
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5 sensor | |
n.传感器,探测设备,感觉器(官) | |
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6 fingerprints | |
n.指纹( fingerprint的名词复数 )v.指纹( fingerprint的第三人称单数 ) | |
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7 scents | |
n.香水( scent的名词复数 );气味;(动物的)臭迹;(尤指狗的)嗅觉 | |
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8 sensors | |
n.传感器,灵敏元件( sensor的名词复数 ) | |
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