Introduction: Do you know Black color nails meaning? A nail is well-defined as a horn-like cover covering the tips of the fingers and toes in human beings, most non-human cardinals, and a few other creatures.
Fingernails and toenails are made of a complex defensive protein called alpha-keratin, a polymer. Alpha-keratin is found in the hooves, claws, and horns of vertebrates. The nail’s purpose of defending the digits and donate to tactile feeling.
