During this period, Sueb had produced many research documents on wildlife, from monitoring types and behaviors of bird and bird nests, investigating of goral habitats, and studying of serow’s behaviors. He was also a part of a team to study ecosystem of Huai Kha Kheang and Tung-yai Naresuan. These researches had made him more attached to wildlife. His most important assignment was when he led the Wildlife Evacuation Team of Chiew-larn Dam in Surat Thani province. Seub was dedicated in trying to save as many wild animals as possible without worrying about his own safety.