Frank and Louie, sometimes referred to as Frankenlouie[1] (September 8, 1999 – December 4, 2014), was a diprosopus (also known as "janus" or "two-faced") cat known for his unusual longevity.
A breeder brought Frank and Louie to the Cummings School of Veterinary Medicine at Tufts University since the kitten was born with two faces, a condition called diprosopus.
Veterinary nurse Martha "Marty" Stevens took the kitten home to care for it anyway and ended up tube-feeding him for 3 months.
[5] Leslie A. Lyons, an associate professor at the University of Missouri School of Veterinary Medicine and Surgery, called Frank and Louie's longevity "impressive".
[1] Owner Stevens described Frank and Louie's temperament as an adult as "very, very laid-back, not afraid of people, very friendly, and he's actually more of a dog than a cat.