The Panda twin cubs at the Calgary zoo are celebrating their 3rd Bday! Sneak a peek at some of the most endangered bears in the world. Watch Er Shun,Da Mao, Jia YueYue and Jia PanPan – every day from 9 a.m. to 6 p.m. LIVE on the #CalgaryZoo's #PANDACAM!
