White rhinos and black rhinos are found in small pockets of eastern and southern Africa, living in grassland and floodplain habitats. The Javan rhino has a single horn, like the greater one-horned rhino. It is also called the lesser one-horned rhino. Javan rhinos are very rare in the heavily forested areas of Southeast Asia, and they are probably the rarest of the rhino species.

The Sumatran rhinoceros is the smallest of the rhinos and is the only rhino covered with a coat of shaggy hair. The Sumatran rhino is considered to be the most primitive, being closely related to the long-extinct wooly rhino.

Dining all day: All rhinos are herbivores, spending the majority of the morning, late afternoon, and nighttime eating grasses or leaves, depending on the species. During the hottest part of the day, they rest. Their horns are used to dig up roots and break branches for better access to food.

The dominant male, or bull, occupies a small, exclusive territory, allowing only one or two subordinate males to share the territory with him.