FILE - This Monday, Dec. 14, 2015 file photo shows Bei Bei, the National Zoo's newest panda and offspring of Mei Xiang and Tian Tian, is presented for members of the media at the National Zoo in Washington. Bei Bei weighed 4 ounces when he was born pink, hairless, blind and dependent on his mother Mei Xiang. But he's nearly 4 months old now, weighs around 18 pounds and has fur, muscle, claws and teeth. On Jan. 16, 2016, he will make his public debut at the National Zoo in Washington. Until then, crowds will keep watching on the zooís giant panda cam. (AP Photo/Andrew Harnik, File)