The water may help cool the rhinos, and the rhinos coat themselves in mud, probably to gain a protective coating against biting flies. Black rhinos have sedentary, overlapping home ranges. Males are probably territorial, but they will tolerate the presence of subordinate males. Females with calves generally stay alone, but they sometimes allow attachment of an abandoned juvenile. Rhinos associate at group wallows and will form loose aggregations of up to 13 individuals.
Black rhinos are unpredictable and can be dangerous.
They have poor eyesight but an excellent sense of smell and will often charge humans, vehicles and campsites if they detect human scent. Habitat Black rhinos are ususally found in the transitional zone between forest and grassland and are restricted to areas with available water. Negative Black rhinos can be dangerous and will charge humans and vehicles. Black rhinos were once widespread and abundant throughout sub-Saharan Africa. Recently, black rhinos have been hunted to near extinction to obtain the horn which is used for ornamental dagger handles and as a traditional medicine in some Asian countries.