Rhinoceroses are megafauna and all five species alive today can reach over a tonne in weight as adults. While all the rhinos have horns, only the African species use them to fight with rivals. Asian rhinos slice at their opponents with their lower teeth instead.
Scientific name: Rhinocerotidae
The shading illustrates the diversity of this group - the darker the colour the greater the number of species. Data provided by WWF's Wildfinder.