An update from zooatl about the twins: "Cub A (pictured) has hit a huge milestone! It has finally surpassed its litter mate and is heavier than Cub B. This is a huge deal because Cub A has been smaller since birth. The cubs have been neck-and-neck for a few days now, and while it's not a race, it's exciting to see A finally catching up." . . . #ZooATL #zooatlanta #panda #pandas #pandacubs #livecam #cute #baby