A staff member plays with a killer whale calf at the Shanghai Haichang Ocean Park in east China's Shanghai, May 31, 2022. The Shanghai Haichang Ocean Park announced on Wednesday that a killer whale calf had been successfully bred at the park and was slated to make its public debut at a proper time. The male calf, born on Sept. 10, 2021, was in healthy condition. Photo:Xinhua

A staff member swims with a killer whale calf at the Shanghai Haichang Ocean Park in east China's Shanghai, May 31, 2022. Photo:Xinhua

A killer whale calf swims at the Shanghai Haichang Ocean Park in east China's Shanghai, May 31, 2022. Photo:Xinhua

A killer whale calf interacts with a staff member at the Shanghai Haichang Ocean Park in east China's Shanghai, May 31, 2022. Photo:Xinhua

A killer whale calf interacts with a staff member at the Shanghai Haichang Ocean Park in east China's Shanghai, May 31, 2022. Photo:Xinhua