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.
If you lose a whole nail, experts say it will likely regrow if the matrix isn't severely damaged. The matrix is the skin below the nail. Fingernails and toenails grow out of the matrix. Nails develop when cells in the matrix increase in number and become flattened and pushed together. Each cell becomes a thin plate, and the plates pile up to form the nail.