Staff members of the Chimelong Ocean Kingdom celebrate the 100-day milestone of Wo Wo, the first Pacific walrus calf in China to be successfully hand-reared, in Zhuhai, Guangdong province, on Monday. Born on June 8, Wo Wo was initially rejected by its mother due to a lack of imprinting behavior. A conservation team at the ocean-themed park intervened and provided care, helping Wo Wo grow from 56 kilograms at birth to over 100 kg at present.