15 Unusual Animal Friendships That Will Melt Your Heart

Naturally, all of these pictures are heart-breakingly adorable, but there's more to it than that. Why did these animals form their friendships? Some of them, like the lions, dogs and elephants, are known for forming strong social relationships or even networks in the wild. In the absence of their prides or packs, it makes sense that they would seek social relationships outside of their own species. Other more solitary animals may form parent-child relationship with animals that they spend time with or that helped raise them, especially if their own parents are gone.