香港大學學生會理學會生態學及生物多樣性學會（EBS），前稱香港大學學生會理學會環境生命科學學會（ELSS），致力服務會員，在大學內外代表著他們的權益，以及宣揚生態學及生物多樣性。EBS曾舉辦不少活動給大學內外的學生，例如野外考察、工作坊和種種探索香港生態的活動。自2005年成立至今，本會曾和多個組織合作舉辦活動，積極參與有關香港生態的社會議題。

The Ecology & Biodiversity Society, SS, HKUSU, (EBS) (formerly named the Environmental Life Science Society), aims to serve its members and represent their interests within and without the university, whilst promoting the study of ecology & biodiversity. EBS has held a wide range of activities including field trips for students within and without the university, a variety of workshops, and activities allowing exploration of Hong Kong’s ecology. Since its establishment in 2005, it has collaborated with multiple organizations, and participated actively in social issues and affairs regarding Hong Kong’s biodiversity.