World’s Oldest Cat Turns 31 — Her Secret? Spring Water and Nothing Else

Wednesday, August 5th, 2026

Meet the reigning champion of nine lives: a 31-year-old cat who, in human years, is pushing well past 140 — and her owner says the whole secret comes down to one very unglamorous habit.

The cat, cared for by Leslie Greenhough, has apparently refused tap water her entire life, insisting on spring water only. No elaborate diet plan, no exotic supplements, no feline biohacking regimen — just a very particular cat who knew exactly what she wanted and got it, decade after decade. Vets and cat lovers alike have marveled at the milestone, since the average domestic cat lifespan sits closer to 15 years, making this feline roughly double the norm.

Buster’s take: A cat lived to 140 in human years by being stubborn about her water source and doing absolutely nothing else notable. Meanwhile I drink out of a filtered fountain and still get side-eyed at the vet.

Verdict Scorecard

  • 🐶 Lucky Warmth: 7/10 — “Look how loved she’s been. Thirty-one years of someone making sure she always had exactly what she wanted.”
  • 🐱 Buster Snark: 8/10 — “The secret to eternal life was apparently ‘be difficult about water.’ I’ve been doing that for free.”

Social Caption

This cat is 31 years old and her only life hack is refusing tap water. 💧🐱 We’re taking notes. #WorldsOldestCat #CatsOfTikTok #LuckyAndBuster #PetNews #GoodNews

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