Two-Faced Feline of the Day: It was 12 years ago this month that a local pet breeder brought Frank and Louie to Tufts Veterinary Clinic to be euthanized.

You see, Frank and Louie is no ordinary cat -- the verb conjugation alone should have tipped you off to that. Frank and Louie is a Janus cat, and he wasn't expected to live very long. But veterinary nurse Marty was up to the challenge,