"If you could use a little bit of joy and laughter,” you have found the right dog. Few animals are as popular on the gram as Tuna, who boasts more than 2M followers. Dubbed the “underdog with the overbite,” Tuna is a rescued Chiweenie adored for his unconventional features and his heart of gold. The traveling pup hasn’t minded sharing the spotlight with his new baby sister, who has helped make these already cute pictures even more adorable. Originally rescued by his owner, Courtney, at a Farmer’s Market over eight years ago, Tuna and his family have been melting hearts on the reg, and has no plans of slowing down.