As temperatures drop across northern China, the zoo in Shanxi's capital is rolling out cozy heating for its animals. Reptiles bask under full-spectrum lamps, giraffes enjoy upgraded floor and overhead heating, and gibbons stay snug at 20-24 degrees Celsius with extra nuts for energy. Even the hippos are lounging in a 16-degree-Celsius heated pool beneath a sunlit glass dome.
（责编：王晓玲）
