Nolina the porcupine celebrates huge birthday at Oregon Zoo: 'Looking sharp'

Nolina the porcupine is ringing in her 20th birthday at the Oregon Zoo. It's a rarity to see these animals live past 15. 

Per an Oregon Zoo press release, "In the wild, African cape porcupines seldom live past the age of 15, and when Nolina reached that age five years ago, caregivers saw signs that she was beginning to slow down."

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Zoo veterinary staff recommended that Nolina take brisk daily walks to help keep her healthy and active.