8. Milo the Dog and Bonedigger the Lion
Bonedigger is a 500-pound lion who looks ferocious, but is really a cuddly little kitty cat at heart. Milo, on the other hand, is a tiny dachshund with the heart of a lion.
Milo decided to take Bonedigger under his wing when the lion was just a cub, after discovering that Bonedigger was suffering from a metabolic bone disease that left him disabled. Five years later, the full-grown lion is still best friends with the 11-pound dachshund and the pair is completely inseparable.