SINGAPORE - JUNE 27: A young girl looks on as the polar bear, 'Inuka' swims in the frozen tundra enclosure at the Singapore Zoo on June 27, 2013 in Singapore. Home to more than 2,800 animal specimens from over 300 species, 26% of which are threatened, the zoo has attained a strong reputation internationally for its conservation initiatives and breeding programmes. The zoo celebrates its 40th anniversary today. (Photo by Suhaimi Abdullah/Getty Images)
