Wondering if your fingerprints are really one-of-a-kind? Learn about the science behind fingerprints below 👇 🔍The science behind fingerprints: Fingerprints form in the womb when different layers of cells on the fetus’ fingertips collide and form ridges. Because the exact pattern of a fingerprint is determined by factors that can vary between identical twins, like umbilical cord length, blood pressure, position inside the womb, and overall rate of finger growth, they can't have the same fingerp