How long is a adult original finger nail

A nail is a horn-like keratinous envelope covering the tips of the fingers and toes in most primates. Nails evolved from claws found in other animals. Fingernails and toenails are made of a tough protective protein called alpha-keratin which is found in the hooves, hair, claws and horns of vertebrates.

Blood transfusions were rarely done and often fatal; they were outlawed until the nineteenth century.

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