5 1 year. According to the news of official website Inquiry Tide, curator Wang Peng once fed panda Yaya when she was a child. She is her biological father. Wang Peng was born in 1972, and she was 5 1 year old by the end of 2023. On March 23rd, 2023, Wang Peng, the curator, went to the United States again to take care of Panda Yaya.