According to the global non-profit organisation Association of Zoos and Aquariums, there are more than 10,000 zoos worldwide today. Collectively, they attract more than 700 million visitors each year. In conjunction with World Wildlife Day on March 4, Andrea Heng and Hairianto Diman look at the evolving role of zoos, going beyond a place of entertainment with Dr Cheng Wen-Haur, Deputy CEO (Life Sciences & Operations) and Chief Life Sciences Officer, Mandai Wildlife Group

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