15 Unusual Animal Friendships That Will Melt Your Heart

Milo the Dog and Bonedigger the Lion: Milo the tiny dachshund took Bonedigger the lion cub under his wing when it was discovered that the lion was suffering from a metabolic bone disease that left him disabled. Five years later, the 500 pound lion is still the best of buddies with the 11-pound dachshund and his two compatriots, Bullet and Angel. Image credits: Barcroft USA