A zookeeper watches a Sumatran tiger in a cage at the Ragunan Zoo in Jakarta, Indonesia, July 28, 2016. International Tiger Day is celebrated annually on July 29, aiming to raise awareness for tiger conservation. (Xinhua/Zulkarnain)
A zookeeper watches a Sumatran tiger in a cage at the Ragunan Zoo in Jakarta, Indonesia, July 28, 2016. International Tiger Day is celebrated annually on July 29, aiming to raise awareness for tiger conservation. (Xinhua/Zulkarnain)