On July 21, 2022, Zhi Chun (知春, studbook 800) gave birth to twins — a male cub later named Yuan Fu (缘福) and a female cub later named Chun Xiao (春晓) — inside her wild-training enclosure at Hetaoping (核桃坪野化培训基地).
From their first breath, both cubs were raised in the simulated-wild environment, with Zhi Chun serving as their sole teacher. The twins share a father, Wu Yang (武阳, studbook 948).
Yuan Fu later moved to Shenshuping and then Ya'an Bifengxia, where he was adopted by the game Onmyoji. Chun Xiao remained in the wild-training pipeline and was officially named in 2025 as a release candidate.
Source: China Conservation and Research Center for the Giant Panda wild-training program records.