Health
You had unique fingerprints before you were born
HERE’S THE INTERESTING PART
You had your unique criminal identification ready to go before you even had functioning lungs. The swirling ridges on your fingertips are formed around the 10th to 16th week of pregnancy. They are dictated by genetic makeup, but their exact pattern is shaped by the random, chaotic movement of the fetus and the flow of amniotic fluid. This means that even identical twins end up with entirely different fingerprints.
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