Panda Yang gave birth to the twins last Sunday, August 7th. The reason the zookeepers believed she gave birth to one cub was due to what the scans showed– one cub rather than two ( obviously, baby pandas are incredibly small, about the size of an typical person’s hand).
But when the caretakers listened to squeaks of not one, but two child pandas, they obtained suspicious. And those suspicions were verified last Friday when Yang was caught on camera cradling two baby cubs. Awwwww.