Before the discovery of DNA profiling in the 1980s, fingerprints were the easiest way to solve serious crimes.
在上世纪80年代DNA分析技术问世之前,指纹是破解重大刑事案件最容易的方法。
It’s believed that of the 7 billion or so people on Earth, each one of us has our own unique fingerprints.
人们相信,在地球约70亿的人口中,每个人的指纹都独一无二。
But did you know that our fingerprints could actually reveal a lot more about us than just our identity?
但你知道吗?除了我们的身份,指纹其实还可以透露更多信息。
According to Melanie Bailey of The Conversation, fingerprints can indicate lifestyle and environment, eating habits, possible medical problems and even the job of a person.
《对话》网站的梅兰妮·贝利认为,指纹可以体现一个人的生活方式、所处环境、饮食习惯、潜在的健康问题甚至职业。
So how can we figure all this out from just a simple fingerprint?
所以我们如何从一枚小小的指纹中获知这一切呢?
Well, a fingerprint is formed when a finger makes contact with a surface. Most fingerprints are invisible to the naked eye and require a chemical development process in order to make them visible. Stuck between the ridges of a fingerprint, however, are substances that can tell a story about who we are. Things like traces of sweat, blood, and food reveal a lot of information about us – what we’ve touched, what we’ve eaten and even what drugs we’ve taken.
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