When Michigan physician and HIV specialist Will Powers adopted a cat named Fenrir Antares Powers, Fenrir was just 12 weeks old. Two years later, Fenrir set the Guinness World Record for the world’s tallest cat measured 18.83 inches on Jan. 29, 2021.

Fenrir is a Savannah cat that Will says “just grew and grew.” Fenrir actually helps out in Will’s office, calming patients down although his size initially frightens many people until they realize how gentle he rally is. The next time you adopt a cat, it probably won’t set a world’s record but you never know, just like Fenrir.

To learn more about the world’s tallest cat, click here.