Why Do We Use ‘Fingerprints’ to Identify People?

Fingerprints are like a special code on your fingers that no one else has. When you touch something, it leaves behind this code, and scientists can use it to find out who touched it. It's kind of like how each person has their own unique shape or voice, fingerprints help people tell apart one person from another, just by looking at the tiny patterns on their fingers.

Why Are They Unique?

Every person is born with different fingerprint patterns because of the way their skin folds and grows while they're in the womb. Even twins have slightly different fingerprints. That’s why scientists use them to identify people, no two fingerprints are exactly alike.

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Examples

  1. A police officer finds a tiny print on the window of a stolen car, it's like finding a secret message that only one person could have left behind.
  2. Your phone asks for your fingerprint to unlock, and you think of it as a special password only you know how to use.
  3. If two people were born in different countries but had the same fingerprints, they might be confused for each other at the border.

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