Black Rhinoceros
Top 3 in Top 10 World's Most Solitary Animals
Rhinos are not known for their tolerance toward other animals. They are not very patient and have a grumpy personality, which makes them somewhat aloof. Bulls and black rhinoceros generally prefer to be alone while female white rhinos don't mind spending time together. But when it comes time to mate, all the energy saved by living alone is lost. Only during the breeding season do male rhinos congregate to court a female.
The black rhinoceros can spend time and form bonds with others, despite being one of the most lonely creatures in the world. If they are of different ages, they get along better since they don't perceive each other as a threat.
