Today for the first time since the birth, the San Diego Zoo's giant panda team members were able to examine their new giant panda cub born Aug. 5. The checkup revealed the 2.8lb cub is a boy. The 14.7-inch-long cub remained quiet during the exam. Having just nursed, he appeared sleepy and content. Mother Bai Yun and her cub will remain in the den for four to five months. During the denning period, the only way to see them is through the San Diego Zoo's live Panda Cam.