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Young penguins graduate fish school at SF Zoo

July 31, 2011 12:00:00 AM PDT
Congratulations are in order for some over-achieving penguins at the San Francisco Zoo.

A group of penguins are graduating this weekend. The youngsters were born at the zoo in May.

Five weeks after they were born, they were relocated to the zoo's Avian Conservation Center for "fish school," where they took swimming lessons.

With graduation behind them, the penguins are now back at the zoo with their colony.