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Why Are Your Fingerprints Unique?

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 Biology   |   Science
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Because of the chaotic way fingerprints develop and the multiplying effect of compound probability, it's basically impossible for any two fingers to have matching prints.

Thanks also to our Patreon patrons https://www.patreon.com/MinuteEarth and our YouTube members.

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To learn more, start your googling with these keywords:
Fingerprint: The markings on the skin on the last joint of the thumb or finger.
Fingerprint Ridges: The raised lines on the fingerprint.
Fingerprint Pattern: The main design in the middle of the fingerprint; usually a loop, whorl, or arch.
Volar Pad: The mass of stem cells that grows under the fingers during a particular time during fetal development that is responsible for determining the pattern of the fingerprint.
Fingerprint Minutiae: The various tiny points in each fingertip where the ridgelines get blocked or split.
Compound Probability: The likelihood that independent events will occur simultaneously.
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Credits (and Twitter handles):
Script Writer, Video Director, and Narrator: David Goldenberg (@dgoldenberg)
Video Illustrator: Arcadi Garcia & Ever Salazar
With Contributions From: Henry Reich, Alex Reich, Kate Yoshida, Peter Reich
Music by: Nathaniel Schroeder: http://www.soundcloud.com/drschroeder

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References:

Kucken, M. and Newell, A. (2005). Fingerprint Formation. Journal of Theoretical Biology. 235 (71-83). Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/15833314.

Kucken, M. (2007). Models for Fingerprint Pattern Formation. Forensic Science International. 171 (85-96). Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/17459625.

Kucken, Michael (2018). Personal Communication. Center of Information Services and High Performance Computing. TU Dresden.

Wertheim, K. (2011). Fingerprint Sourcebook: Embryology and Morphology of the Friction Skin Ridge. Retrieved from: https://www.ncjrs.gov/App/Publications/abstract.aspx?ID=247303

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