Newborn panda cub receives exam at Washington zoo (4/4)

In this photo released by Smithsonian's National Zoo the giant panda cub born 5:32 p.m. August 23 at the Zoo receives an exam from animal care staff in Washington D.C. Aug. 25, 2013. The cub, which weighs 137 grams (about 4.83 ounces), is robust, repoted the zoo's chief veterinarian Suzan Murray. It has a steady heartbeat, a full belly (is nursing well) and has successfully passed fecals. It will take approximately 2-3 weeks before the sex is known. (Xinhua/Smithsonian's National Zoo/Courtney Janney)