Some varieties of durian are heavier, while others may be lighter. At the same time, maturity also affects the weight of durian. Mature durian is often heavier than immature durian. Durian, also known as whistle and civet fruit, is a tropical deciduous tree of Kapok family, with a height of 15-20m. It is generally believed that East India and Malaysia are the origins of durian, which was later introduced to the Philippines, Sri Lanka, Thailand, Vietnam and Myanmar.