Saiga Antelopes, one of the oldest mammals in the world, went extinct in China in the 1960s, until the species was reintroduced back to the country in the 1980s. In northwest China's Gansu Province, a protection center has been dedicated to preserving the animal.

Watch the episode to find more.

(Cover image via VCG)

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