A group of rhinos is called a crash. Rhinos are solitary mammals. Both males and females establish territories, and the male marks and defends his territory.
Rhinos are herbivores that eat grass, leaves and the shoots of bushes and trees. They have one or two horns that grow from the top of their heads. Black and white rhinos have two horns, but the Javan rhino only has one. Rhinos have a lifespan of 35 to 50 years, and they are not usually attacked by other animals unless the rhino is young or sick. Rhinos are found in Africa and some areas of Asia.