A little more than two months after two giant pandas — the first sent to the U.S. in 21 years — debuted at the San Diego Zoo, fans can now do a virtual pop-in. Panda Cam is live.

Fans of giant pandas now have a way to watch the antics of Yun Chuan and Xin Bao at the San Diego Zoo from anywhere in the world, thanks to Tuesday’s launch of the Panda Cam. Before getting to ...