It is with deep sorrow that we announce the passing of Prof. Katsuo Wada, an old friend of our Society, a renowned Japanese primatologist and Emeritus Professor of Tokyo University of Agriculture and Technology, who passed away on September 22, 2026, at the age of 94.Professor Wada was born in Sapporo in 1932. In his early career, he served at the Fisheries Agency of Japan, conducting research ...