Giant panda Ya Ya returned to Beijing Zoo from the US three years ago, and she's now in perfect health – eating well, sleeping soundly and full of energy. Her chubby figure is pure joy to watch. On August 3, Ya Ya will celebrate her 26th birthday, an age equivalent to nearly 90 human years. According to her keeper Ruan Zheng, Ya Ya remains lively and active, and is showing no signs of slowing down despite her age.