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.
Nails grow faster in the summer than in the winter. White spots on your nails don't indicate a calcium deficiency. Finger and toenails grow at an average rate of 3 millimeters a month. Fingernails take 3 to 6 months to regrow completely, while toenails require around 12 to 18 months to grow back fully.