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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“The human race is not so rich in talent, genius, and useful curative energy, that it can afford to allow any considerable proportion of these valuable attributes to be wasted or unproductive, even though they may be possessed by women.”
—Bertha Honore Potter Palmer (1849–1918)