Human Digits
Humans normally have five digits on each extremity. Each digit is formed by several bones called phalanges, surrounded by soft tissue. Human fingers normally have a nail at the distal phalanx. The phenomenon of polydactyly occurs when extra digits are present; the utility of such a mutation is case-dependent.
Read more about this topic: Digit (anatomy)
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“Language is an archeological vehicle ... the language we speak is a whole palimpsest of human effort and history.”
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