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Takeshi Takegaki is an associate professor at Nagasaki University in the Graduate School of Integrated Science and Technology. He earned a PhD in agriculture from Kyushu University in 1999, following earlier studies at the same institution including a master’s degree in the Graduate School of Agriculture and an undergraduate degree from the Faculty of Agriculture. His career at Nagasaki University began with positions as a research fellow and assistant, progressing to associate professor roles in the Faculty of Fisheries and the Graduate School of Fisheries and Environmental Sciences before his current appointment.
Takegaki’s research centers on behavioral ecology and evolutionary ecology, with a focus on fishes and cephalopods. His work examines topics including filial cannibalism, sperm competition and removal behaviors, parental care, mating tactics, and toxin utilization in species such as gobies, blennies, and octopuses. He has authored or co-authored numerous peer-reviewed papers, including studies published in Current Biology (2018), Proceedings of the Royal Society B (2020), and The American Naturalist (2023). Takegaki serves as editor-in-chief of the Journal of Ethology and holds committee roles in the Japanese Society for Animal Behavior and the Ecological Society of Japan. He has received awards including the Japanese Society of Ichthyology Paper Award (2006) and poster awards from the Ecological Society of Japan and the Japanese Society for Animal Behavior. His professional email address is takegaki@nagasaki-u.ac.jp.
Nagasaki University's latest research uncovers how male Japanese pygmy octopuses protect their specialized mating arm, highlighting evolutionary adaptations and the university's marine biology prowess.
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