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27-year-old polar bear Uslada shakes off water in her pool at the Leningrad Zoo in St. Petersburg, Russia, on Thursday. Uslada was joined by her five-month-old cub during its first public appearance, who reluctantly followed for its very first swim before quickly clambering out of the pool.

A polar bear cub yet to be named plays with its mother Uslada at the Leningrad Zoo in St. Petersburg, on Thursday.ALEXANDER DEMIANCHUK / Reuters