What you didn’t know about your fingerprints: Do twins have the same ones? Are there people without them?

Their shape, size, number and arrangement make them unique.

Fingerprint, dermatoglyph or dactylogram are various names given to the visible or molded impression produced by the contact of the papillary ridges of a finger (generally thumb or index finger) on a surface. Their shape, size, number and arrangement make them unique , each one has their own and there are no two alike in the world . But there is probably a lot of information you don’t know about these identifiers that can play an essential role in judicial investigations or in the identification of corpses, among many other things.

How are fingerprints formed?

Fingerprints develop in the first six months of pregnancy . The lines on the fingers are printed from the pressure that the baby exerts on its surroundings. Its shape is completely unique.

Are there people without them?

The absence of fingerprints on the hands and feet is called adermatoglyphics , also known as “immigration delay disease” ; is a genetic mutation recognized in 2011.

According to a study by the University Hospital of Basel (Switzerland) and the University of Tel-Aviv (Israel) on the genetic profile of nine Swiss individuals affected by the problem compared with that of seven other completely healthy relatives, it concluded that the produces a mutation or error in the SMARCAD1 gene.

Do animals have fingerprints?

There are many who believe that humans are the only ones who have fingerprints, but this is not the case. There are three animals that have footprints with patterns similar to ours: koalas, chimpanzees and gorillas.

According to a study by the University of Adelaide (Australia), they discovered that these animals, being in constant movement in the trees and leaves , evolved so that their hands adapted to the pressure exerted on the skin, developing their own fingerprints.

Do twins have the same fingerprints?

We have already commented that its shape is unique and exclusive, so the answer is no . Fingerprints do not come from the DNA of the person, but from the factors that occur in the development of the embryo while it grows in the mother’s womb.

Two brothers sharing the same space exert different pressures on their fingers, therefore their footprints are different.

Who was the first person captured by fingerprint identification?

In 1892, Argentina was the first country in the world to solve a criminal case thanks to fingerprints . The dactyloscopy was applied to Francisca Rojas.

After killing her two young children, Francisca Rojas de Caraballo blamed her neighbor for what happened. The police found a bloodstained fingerprint on her front door mailbox, a fingerprint that could only have belonged to the killer.

Can fingerprints be changed?

Fingerprints do not change over time . However, they can be modified , though only through plastic surgery.

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