Marines must request paternity leave within 25 days after the birth of the baby. If deployed, the commander can approve paternity leave within 90 days of deployment and can authorize it outside that time period for extraordinary circumstances.
An injury to a nail may result in the loss of the nail. As long as the nail bed itself wasn't damaged, a lost nail should eventually grow back. Healthy fingernails grow at a rate of about 0.10mm per day, but toenails are slower, growing at only about one half to one third of a fingernail's rate.
How the fingernail grows. As the cells in the finger produce new keratin to form the fingernail, it gathers at the base of the nail plate and is eventually pushed up and out. At new fingernail materials is pushed out, old fingernail material is pushed past the end of the fingertip making the fingernails longer.