Washington D.C. Zoo Shows Off Three Sumatran Tiger Cubs Sunday, September 03, 2006 WASHINGTON — The introduced three to the public Saturday, more than three months after they were born.The cubs, two female and one male, had been kept inside since their May 24 birth to bond with their mother. In the last few days, the cubs were introduced to the outdoors to make sure that they could safely get around.<<<snip>>> AP Sept. 3: Two of three Sumatran tiger cubs born at the National Zoo make their debut. AP Sept. 3: Maharani, one of three Sumatran tiger cubs born at the...