Tourists feed milk to a tiger cub at the Sriracha Tiger Zoo, in Chonburi province, Thailand, June 7, 2016. REUTERS/Chaiwat Subprasom/File Photo

Tourists feed milk to a tiger cub at the Sriracha Tiger Zoo, in Chonburi province, Thailand, June 7, 2016. REUTERS/Chaiwat Subprasom/File Photo

Tourists feed milk to a tiger cub at the Sriracha Tiger Zoo, in Chonburi province, Thailand, June 7, 2016. REUTERS/Chaiwat Subprasom/File Photo

August 24, 2016 7:19 AM (UTC+8)