In Lingnan in July, the heat is like thick ink that cannot be melted away, splashing on the rolling Cangwu Mountains. In the dense primeval forest, sunlight filtered through the layers of tree canopies, filtering out tiny spots of light that fell on Zai Galen's mud-covered hiking boots. He raised his hand to wipe the sweat from his forehead, and when his fingertips touched his skin, he could feel a thin layer of salt grains - this was the fifth consecutive day of scientific research in the mountains. Their team's goal was to find wild populations of the national first-level endangered orchid "Paphiopedilum caerulea".
