How do finger and toe nails grow?

How do finger and toe nails grow?They grow from a bed of skin containing Keratin-a horn like substance. This bed lies beneath the top skin and as the nail grows it becomes hard and smooth. There is similarity between human nails and animals claws and hooves.

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IAF celebrates 26 years of Operation Safed Sagar

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Indian Air Force celebrates 26 years of Operation Safed Sagar: Read how IAF flushed out …