Cui Bo's Magpies and Hare is the work of a formidable observer of nature who vividly depicts the interaction between a hare and two magpies in the wild; while Fan Kuan's Travelers Among Mountains and Streams reveals the very anatomy of the mountains and rocks.
崔白的《雙喜圖》儼然生態觀察家，描繪山野裡，野兔和山喜雀生動的呼應，而范寬《谿山行旅圖》的山石肌理更是絲絲入扣。