Cat Scratch is the language of cats. All cats know it from birth, and can pass the knowledge on by scratching a host. Nothing is free, though! Hosts should prepare for a nasty fever.

–
(Cat scratch fever is a real thing, but it doesn’t give you language super powers. Don’t invite any kind of animal to scratch you, you’ll walk away with a shitty infection and if you’re SUPER unlucky, tuberculosis.)