Article Photos: No clear explanation for giant panda cub's death



Andrew Harnik/Examiner The National Zoo's Female Giant Panda Mei Xiang may be pregnant however it is too soon to know decisively according to Zoo officials. In Washington, DC on Friday June 20, 2008.

Andrew Harnik/Examiner The National Zoo's Female Giant Panda Mei Xiang may be pregnant however it is too soon to know decisively according to Zoo officials. In Washington, DC on Friday June 20, 2008.