20 Heartwarming Animal Photos That Will Instantly Lift Your Mood

This rhino dog is adorable!

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Arnold the Rhino Dog was one of a kind, with the body of a rhino and the head of a dog. Living at the zoo, Arnold loved playing fetch and greeting visitors. One day, a group of children visited, eager to meet him. Arnold ran to greet them, and they played for hours. When it was time to say goodbye, everyone felt a little sad, but they knew they would see Arnold again. He waved as they left, already excited for their next visit.