Cities

S1 E2: As one of the ecosystems on Earth, city was the latest to be born. It was born to meet human needs, but other lives are also endeavouring to find their own living space here. The Temple of Heaven is the home for many animals: the slender squirrels are stocking winter rations, the Hedgehogs here already knows that cat food is the new option, crows accustomed to flying to Beijing's urban in winter.