Once on the edge of extinction, the Hainan Eld's deer is one of the rarest deer species in China.

After four decades of conservation and protection, they have seen an increase in population and returned to the wild to live on their own.

In the Jianfengling Series, CGTN unfolds the amazing biodiversity in the Jianfengling tropical rainforest. Located in China's southern island province of Hainan, Jianfengling Mountains are home to about 80-percent flora and fauna species on the island. Fascinating natural phenomena make it a gene bank in the northern rim of the tropics.

CGTN Nature: Jianfengling Series | Episode 1: A Realm of Biodiversity

CGTN Nature: Jianfengling Series | Episode 2: Strangler Figs

CGTN Nature: Jianfengling Series | Episode 3: Treefall Gap

CGTN Nature: Jianfengling Series | Episode 4: Living Fossil

(Cover is a still from the video.)

(If you want to contribute and have specific expertise, please contact us at nature@cgtn.com.)