Fingerprints and why do we have them?
Not to improve our grip as many experts thought. Researchers found that a fingerprint’s ridges actually made it harder to hold flat, smooth surfaces,like Plexiglass,because they reduced the skin’s contact area. Some scientists have suggested fingerprints could improve our sense of touch. What is known for sure is that no two people’s fingerprints are the same, even among identical twins.
V.Patteson Lombardi, PhD, research assistant professor of biology at the University of Oregon
Published in Reader’s Digest
P.S. Everyone has a unique tongue print too!