#tbt Nearly 4 years ago, Bai Yun gave birth to her 6th tiny, squawking cub. Barely the size of a Twinkie, Xiao Liwu (aka Mr. Wu) still exemplifies the meaning of his Chinese name: little gift. We can’t wait to celebrate our wu-underful bear’s birthday tomorrow. #blackandwhiteandlovedallover #pandapandapanda