I felt a deep sense of loss and sadness upon learning the passing of my PhD supervisor, Professor Brian Morton, at the age of 78 in the U.K. at the end of March. Professor Morton was a world-renowned marine ecologist who worked diligently and maintained a serious attitude. He had taught Ecology and Biodiversity at the University of Hong Kong since the 1970s until his retirement in 2003. During the 34 years, Professor Morton had taught thousands of undergraduates, and trained 39 PhD students, I am fortunate to be one of them. In addition to nurturing and mentoring the younger generations, Professor Morton also played a key role in marine conservation of Hong Kong. Over the years, he has contributed to the formation of Mai Po Nature Reserve, Swire Institute of Marine Science (SWIMS), the first batch of marine parks in Hoi Ha Wan and Yan Chau Tong, as well as establishment of the Marine Biological Association of Hong Kong. Professor Morton was also a founding member of the World Wide Fund for Nature Hong Kong (WWFHK). During the 22 years as a member of the Executive Council of WWFHK, he had inspired the harmonious integration of man and nature, which is still influential today. In the WWFHK’s eulogy, there is a mentioning: "The entire panda family remembers Brian as the joyous leader of the Birdbrains team in our annual Big Bird Race, a personality who accomplished so much and will be truly missed by us all.” The description visualizes how lively my professor had been.