Two under a year old baby Bornean orangutans, second left and right, cling on to their mother while another 3-year-old orangutan kisses her, Thursday, October 3, 2013, at the Singapore Zoo. The Singapore Zoo is renowned for its flagship animal, the orangutan, and exhibits both the endangered Bornean and critically endangered Sumatran sub-species in a social setting. (Photo by Wong Maye-E/AP Photo)
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