Happy dolphins smile at the zoo

A proud mother dolphin shows off her baby at a zoo in Germany.

Baby bottlenose dolphin Doerte and her mother Delphi swim enjoy a swim in their tank at the zoo in Duisburg, western Germany. 

Two-month-old Doerte is one of three dolphins born to three different mothers at the zoo.

The three baby dolphins Diego, Doerte and Darwin are all still being fed on their mothers' milk.