English cat, 31, may be world's oldest living cat as owner seeks Guinness record

A 31-year-old cat named Millie from Stockport, England, may be the world's oldest living cat, and her owner is seeking official Guinness World Records recognition. Millie, who turned 31 in March, lives with Leslie Greenhough, 71, who adopted her in 1995. Her diet consists of chicken, salmon, and tuna, and she drinks only mineral water. Greenhough faces challenges proving her age, as he lacks required veterinary and adoption documents. The Guinness record for oldest living cat is currently held by Flossie, also from England, at 30 years old. The all-time record belongs to Creme Puff from the US, who died in 2005 at age 38. Millie's age equates to roughly 146 human years.