Every wonder what a giant panda's artificial insemination is like? Me either. But whether you were interested or not, if you followed the National Zoo's Twitter feed on Monday, you got a tweet full and found out, in startlingly vivid detail, tweet by tweet. The Washington, D.C., zoo turned control of its Twitter feed over to Dave Wildt, head of the Center for Species Survival, who "live-tweeted" the insemination of Mei Xiang, a 13-year-old, 230-pound panda at the zoo. The graphic tweets even included pictures with the final tweet reading: Mei did great and there's a sense of celebration and accomplishment in the air here! We hope you learned something." Trust us, doc, we did. (Yahoo News)