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How to make tigers angry – dunk them in water

Gary Cameron / Reuters

Male Sumatran tiger cub Bandar is tossed into a moat by Smithsonian National Zoo curator of great cats and bears Craig Saffoe for a swim test in Washington, D.C., Nov. 6, 2013.

Manuel Balce Ceneta / AP

A three-month-old Sumatran tiger cub named Bandar shows his displeasure after being dunked in the tiger exhibit moat for a swim reliability test at the National Zoo.

Gary Cameron / Reuters

Male Sumatran tiger cub Bandar crawls out of a moat at the Smithsonian National Zoo after a swim test.

Win McNamee / Getty Images

A female Sumatran Tiger cub named Sukacita is dried off by biologist Leigh Pitsko after her swim test in a moat of the Great Cats exhibit at the National Zoo Nov. 6, 2013.

Two Sumatran tiger cubs born Aug. 5 took a swimming test to show their ability to keep their heads above water, navigate the shallow end of the moat, and climb onto dry land.  The cubs had to pass before they could go on exhibit at the National Zoo in Washington, D.C. At least one of the cubs didn’t look too happy about the experience. The two will be on public display Nov. 18.