Sustainable development and ethnobiological practices in Hajong and Chakma community of Bangladesh Bibhuti Bhushan Mitra Introduction According to United Nations World Commission of Environment and Development, sustainable development means meeting the needs of the present without compromising the ability of future generations to meet their own needs. Ethnobiological practices are totems and taboos, traditional medicines, strong beliefs such as myth, folklores etc .Hajong community lives in Mymensingh, Sherpur districts and chakma in Chittagong district. One community lives in plain land and another in hill area. The paper presents here ethnobiological practices of two communities which are sustainably used. Bangladesh covers an area of 1, 47,570 sq km with a population of 150 million. The total population of indigenous peoples in Bangladesh is approximately 3 million, out of which, 0.85 million live in Chittagong which covers an area of 13,295 sq km and othe...