The Yangtze finless porpoise has been critically endangered for years due to over-fishing and pollution in the river. However, thanks to new policies designed to protect the local environment, photographer Yang He has noticed that the porpoises have started to return. In this episode, Yang shows us the best places for porpoise spotting, and explains how his findings have helped conserve these incredible creatures.

In a new CGTN series, "Eyes Over Hubei", reporter Morag Hobbs follows the twists and turns of the Yangtze River to learn more about the beautiful Hubei Province.