In news that is sure to please DCist’s mother, officials at the National Zoo are on pregnancy watch. That’s right, Mei Xiang, the lovable panda, may be pregnant. The Post is reporting that it has been 122 days since Mei Xiang was artificially inseminated with sperm from Tian Tian. And the time is about right when the panda should show signs of pregnancy. Zoo officials are hopeful, but have described their efforts as a “long shot.” Apparently, zoo officials only used one billion sperm, not the usual “10 billion to 16 billion” exchanged in natural panda mating.

The Smithsonian, which administers the National Zoo, has some good information on giant pandas. And don’t forget about the PandaCam.