Reuters: The giant panda cub born at the National Zoo just one week ago died on Sunday, zoo officials said. While the exact cause of the baby panda’s death is yet to be determined, zoo officials said the cub, which weighed just under 100 grams (about 3.5 ounces), was in good body condition and that there were no outward signs of trauma or infection. The cub’s death was discovered Sunday morning after panda keepers and zoo volunteers heard a distress vocalization from its mother, Mei Xiang. The panda cam…