how do fingertips work? What makes them so unique and why they generate on the fingers and not other parts of the body?
In: Biology
All of your body is unique. It’s possible to identify people just by the shape of their hand if you use spacers to hold the fingers in place. Same with retinas, face proportions etc.
Fingerprints just get more attention because they’re a small area and have been historically important for identifying people as we leave them everywhere. They are also easy for us to see. But there is nothing more unique about them then any other part of your body.
Technology wise there is a big move away from fingerprints as an identifying mark because people have dirty hands, and so the reader is less reliable without frequent cleaning. Your phone, CCTV surveillance, Facebook tagging your photos etc use facial recognition.
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