MANFRED KAGE / SCIENCE PHOTO LIBRARY MANFRED KAGE / SCIENCE PHOTO LIBRARY
Fingerprint. Macrophotograph of the tip of a human finger, showing details of skin ridges in the outer cornified (keratinised) epidermis. These minute ridges form a distinct pattern, with each fingerprint pattern unique to an individual. Even identical twins have different fingerprints. The patterns are classified into four main types: loops, whorls, arches, and combinations of these three. Magnification: x4 at 6x7cm size.
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