Mei Xiang the female giant Panda at the Smithsonian’s National Zoo.

Mei Xiang, the female giant panda at the Smithsonian’s National Zoo, Washington, DC, USA. It was her second successful pregnancy with 15-year-old Tian Tian, the zoo’s male giant panda, in seven years.

“We are thrilled that Mei Xiang had a successful pregnancy since 2005,” said Dennis Kelly, the zoo’s director. “I’m cautiously optimistic as we haven’t seen the cub yet, but we know that Mei is a good mother. Like everyone else, I’m glued to the panda cam for my first glimpse of the cub!”

People’s excitement to see the new cub comes partly because there aren’t that many pandas to see. The giant panda is one of the most endangered species in the world. There are estimated to be only 1,900 still in existence  well,  now 1,901.