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In this picture taken on January 25, 2019, police walk past wild boars (R) near a residential estate in Hong Kong. - As Hong Kong prepares to celebrate the Year of the Pig, the city is facing its own peculiar porcine pickle -- a furious debate about what to do with its growing and emboldened wild boar population. (Photo by Anthony WALLACE / AFP) / TO GO WITH AFP STORY HONG KONG-ANIMAL-PIG-BOAR,FEATURE BY YAN ZHAO (Photo credit should read ANTHONY WALLACE/AFP/Getty Images)

In this picture taken on January 25, 2019, police walk past wild boars (R) near a residential estate in Hong Kong. - As Hong Kong prepares to celebrate the Year of the Pig, the city is facing its own peculiar porcine pickle -- a furious debate about what to do with its growing and emboldened wild boar population. (Photo by Anthony WALLACE / AFP) / TO GO WITH AFP STORY HONG KONG-ANIMAL-PIG-BOAR,FEATURE BY YAN ZHAO        (Photo credit should read ANTHONY WALLACE/AFP/Getty Images)