Friendships among completely different animals are rare. However, the bond between a Golden Retriever named Barley and a Pekin duck called Louie proves otherwise.
The pair has become one of social media's most uplifting stories, delighting hundreds of thousands of people while highlighting the positive impact that animal companionship can have. They have built a devoted online following by doing exactly what their Instagram bio promises: 'Making millions smile with their unlikely friendship.'
