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BROOKFIELD, Ill. – Brookfield Zoo is mourning the loss of a beloved dolphin.

The zoo said Maxine,  a 3-year-old bottlenose dolphin, passed away from a bacterial infection that caused organ failure.

The zoo issued the following statement:

Despite the tireless efforts of our animal care staff, sadly, Maxine succumbed to the aggressive disease. … Maxine’s death has been devastating to all of the Chicago Zoological Society family and she will be greatly missed.