Biology
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Ever wonder what makes fingerprints unique?
Whether thwarting our criminal efforts or unlocking our phones, our fingerprints play an important role in our identity. Even identical twins have non-identical fingerprints! But by nature, the swirls and ridges on our fingertips aren’t meant to identify us, but instead serve the more mundane purpose of aiding touch. So what triggers their one-of-a-kind design?
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