A documentary on the remote Hoh Xil region of the Qinghai-Tibet Plateau recently premiered in Kunming, Yunnan province.

The film — Biodiversity On Earth: Zhuonai Lake — was jointly produced by Yunnan University and the Kunming Institute of Zoology at the Chinese Academy of Sciences. It made its debut at the Kunming Animal Museum on Nov 24.

This is the first episode of the documentary series Biodiversity On Earth, which was independently shot and produced by the first-line scientific research team of the Second Tibetan Plateau Scientific Expedition.

It took team members more than 1,000 hours to shoot the film over two years. The team repeatedly went deep into the hinterlands of Hoh Xil, where few people have set foot, and overcame the challenges of the harsh and extreme environment at high-altitude.

The most advanced shooting equipment was used to record the seasonal changes to the natural landscape and faithfully depict the biodiversity of the remote region.

The documentary focuses on the migration of Tibetan antelopes to Zhuonai Lake to give birth and return, along with the story of the unknown biodiversity in Hoh Xil.

It also shows the living conditions of wild yaks, plateau pikas, spotted geese, wolves and other wild animals.

Yunnan University contributed to this story.