Brookfield Zoo black rhino is euthanized at age 33

Nakili, an eastern black rhinoceros at the Brookfield Zoo, was euthanized Wednesday, the zoo said.The 33-year-old rhinoceros was the oldest male of his species living in an accredited North American zoo.He had been recently diagnosed with kidney disease that was no longer treatable, the Brookfield Zoo said Wednesday in announcing his death.

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