Pink bananas, African Tree Aloe, medicinal herbs that look like puppies, and the world's largest and heaviest seeds… the South China National Botanical Garden is home to many rare and exotic plants from across the world. China's "Oasis on the Equator" has been a pioneer in biodiversity conservation for decades. Its breeding center has provided refuge to thousands of rare and endangered plants – 36 of which have been re-introduced to the wild. By cultivating native plant species that are in decline in the wild, or simply grow them far away from their native habitats, scientists are helping to restore biodiversity against the threats of climate change, and developing new variations that are more adaptable to changing environments. CGTN's Huang Fei takes you inside south China's largest botanical garden to learn more.