Courtney Dasher

Courtney Dasher adopted Tuna, a "chiweenie" (Chihuahua- Dachshund mix) with a pronounced overbite, back in 2011, and almost immediately began Instagramming daily photos of her dog. Two-and-half years later, the Tuna Melts My Heart Instagram account has more than 375,000 followers, has inspired numerous works of fan art, and recently launched a fully stocked web shop.