Saed News: Humans and many members of the primate family have special lines on the skin of their hands and feet that appear as intertwined circles and curves.
According to SAEDNEWS, human skin on the palms and fingertips has special patterns that are unique to each person, and finding two individuals with identical fingerprints is almost impossible. But many people have wondered what the purpose of these curved lines on human hands and feet is beyond biometric features.
These lines on the skin help human hands and feet have greater grip and make it easier to touch and move objects. Animals and creatures that do not have such lines on their hands and feet slip more compared to creatures with this feature and have less ability to grasp objects.
Of course, humans are not the only members of the primate family with fingerprints; most monkey species also benefit from this feature to use their hands and feet more effectively and efficiently. About 6 million years ago, humanoids lived in trees, and the absence of these lines on the skin increased the risk of falling from trees and becoming extinct. Thus, during the evolutionary process of humanoids, these lines and markings appeared on the skin of their hands and feet. Later, with the need of early human species for toolmaking and using tools, these lines became more numerous and complex.
Another question may come to mind: why does modern man, with facilities such as shoes, gloves, and the like, still need these strange curves and lines on the skin of his hands and feet? Scientists answer this question by saying that although modern humans have access to facilities such as shoes and gloves, throughout most of their evolutionary history they did not have these امکانات and relied only on these seemingly simple lines.
It may seem strange, but this very feature in the skin of human palms and soles allowed humans to live longer and reduced the risk of death. In fact, these lines can be considered a gift in the evolutionary process of humans that, although they may not have much use today for increasing lifespan, humans still need the lines on their palms to hold objects and prevent them from slipping from their hands.
