Photo taken on Feb. 20, 2021 shows puma "Leiwa" in Shanghai Zoo, east China's Shanghai. Recently, Shanghai Zoo named three puma cubs born in September last year "Huowa", "Leiwa" and "Xiwang". The two male pumas were named "Huowa" and "Leiwa" to commemorate Huoshenshan Hospital and Leishenshan Hospital, which were swiftly built for the treatment of COVID-19 patients in Wuhan. The female cub was born weak but later recovered, so it was named "Xiwang", which means hope in Chinese.(Photo: Xinhua)

Photo taken on Feb. 20, 2021 shows puma "Leiwa" and his mother in Shanghai Zoo, east China's Shanghai. Recently, Shanghai Zoo named three puma cubs born in September last year "Huowa", "Leiwa" and "Xiwang". The two male pumas were named "Huowa" and "Leiwa" to commemorate Huoshenshan Hospital and Leishenshan Hospital, which were swiftly built for the treatment of COVID-19 patients in Wuhan.(Photo: Xinhua)

Photo taken on Feb. 20, 2021 shows the puma family in Shanghai Zoo, east China's Shanghai. Recently, Shanghai Zoo named three puma cubs born in September last year "Huowa", "Leiwa" and "Xiwang". The two male pumas were named "Huowa" and "Leiwa" to commemorate Huoshenshan Hospital and Leishenshan Hospital, which were swiftly built for the treatment of COVID-19 patients in Wuhan. The female cub was born weak but later recovered, so it was named "Xiwang", which means hope in Chinese.(Photo: Xinhua)

Photo taken on Feb. 20, 2021 shows puma "Huowa" in Shanghai Zoo, east China's Shanghai. Recently, Shanghai Zoo named three puma cubs born in September last year "Huowa", "Leiwa" and "Xiwang". The two male pumas were named "Huowa" and "Leiwa" to commemorate Huoshenshan Hospital and Leishenshan Hospital, which were swiftly built for the treatment of COVID-19 patients in Wuhan. The female cub was born weak but later recovered, so it was named "Xiwang", which means hope in Chinese.(Photo: Xinhua)