Bachelor of Science, Nanyang University, Singapore, 1962. Master of Science, University Western Ontario, Canada, 1964. Doctor of Philosophy, University Western Ontario, Canada, 1967.
Research associate University Montreal, Canada, 1967-1968. Medical research council, fellow Canada McGill University of Canberra, 1969, University Manitoba, Canada, 1969-1970. Lecturer to associate professor National University of Singapore, since 1970.
Deputy head department zoology National University, Singapore, 1996. Consultant Teo Way Yong & Sons Ltd., Singapore, since 1998.
Married Siew Foong Wong. Children: Wun-Chey, Wun-Huei, Wun-Yi.