A Pacific pocket mouse residing at the San Diego Zoo Safari Park has officially been named the world's oldest living mouse in human care and the oldest mouse ever at the age of 9 years and 209 days.
Endangered Mouse Raised by San Diego Zoo Wildlife Alliance Certified by GUINNESS WORLD RECORDS™ as Oldest Living Mouse in Human Care streetinsider.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from streetinsider.com Daily Mail and Mail on Sunday newspapers.