NEW : The new panda cub is a female . A male panda cub born at the National Zoo in Washington, D.C. on April 22, 2012. The father of the cub born last month is Tian Tian . The name of the female cub will be announced 100 days after the birth , per Chinese tradition . Giant pandas are one of the world 's most endangered species .
NEW : The new panda cub is a female . A male panda cub born at the National Zoo in Washington, D.C. on April 22, 2012. The father of the cub born last month is Tian Tian . Giant pandas are one of the world 's most endangered species .