In pics: various species of colorful snakes in Yunnan (3)

Photo shows a Viridovipera yunnanensis at the Longling Xiaoheishan Provincial Nature Reserve in southwest China’s Yunnan province. (Photo/Hou Yunpeng)

Southwest China’s Yunnan province, a renowned biodiversity hotspot on the planet, is home to various species of colorful snakes, which play an invaluable role in maintaining the ecological balance of their natural habitat.