The Philadelphia Zoo is mourning again. This time, it's the giraffe Twigga, who was euthanized due to health problems caused by old age.

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At 29, Twigga was one of the oldest giraffes in the USA.

RIP, Twigga. Your recently-departed friend Puzzles, the geriatric giraffe from the Zoo who passed a few weeks ago, will be happy to see you again, I'm sure.