As of 31 December 2007, there were an estimated 17,460 southern white rhino in the wild (IUCN 2008), making them by far the most abundant subspecies of rhino in the world; the number of southern white rhinos outnumbers all other rhino subspecies combined.
https://en.wikipedia.org/wiki/White_rhinoceros
The front horn is larger and averages 60 cm (24 in) in length, reaching as much as 150 cm (59 in) but only in females. The white rhinoceros also has a noticeable hump on the back of its neck. Each of the four stumpy feet has three toes. The color of the body ranges from yellowish brown to slate grey.
https://en.wikipedia.org/wiki/White_rhinoceros
There are two living Rhinocerotini species, the Indian rhinoceros and the Javan rhinoceros, which diverged from one another about 10 million years ago. The Sumatran rhinoceros is the only surviving representative of the most primitive group, the Dicerorhinini, which emerged in the Miocene (about 20 million years ago).
https://en.wikipedia.org/wiki/Rhinoceros
The white rhinoceros is the largest of the five species of rhinoceros. It weighs slightly more on average than a hippopotamus despite a considerable mass overlap between these two species. It has a massive body and large head, a short neck and broad chest.
https://en.wikipedia.org/wiki/White_rhinoceros
Rhino population figures. At the beginning of the 20th century there were 500,000 rhinos across Africa and Asia. This fell to 70,000 by 1970 and further to just 29,000 in the wild today. Despite this bleak picture, and the continuing threat of poaching for their valuable horns, global rhino population figures have been increasing in recent years. Large-scale poaching of the now critically endangered black rhino resulted in a dramatic 96% decline from 65,000 individuals in 1970 to just 2,300 in 1993.
http://www.savetherhino.org/rhino_info/rhino_population_figures
The Javan rhinoceros (Rhinoceros sondaicus) is one of the most endangered large mammals in the world. According to 2015 estimates, only about 60 remain, in Java, Indonesia, all in the wild. It is also the least known rhino species.
https://en.wikipedia.org/wiki/Rhinoceros
There are fewer than 100 Sumatran rhinos left in the wild, and efforts are now being invested in captive breeding in an attempt to boost the population. The Javan story is sadly even more shocking with an estimated 58 to 61 individuals left in a single population in Ujung Kulon National Park.
http://www.savetherhino.org/rhino_info/rhino_population_figures
It has a wide mouth used for grazing and is the most social of all rhino species. The white rhinoceros is considered to consist of two subspecies: the southern white rhinoceros, with an estimated 20,000 wild-living animals as of 2015, and the much rarer northern white rhinoceros.
https://en.wikipedia.org/wiki/White_rhinoceros
There are two subspecies of white rhinoceros: the southern white rhinoceros (Ceratotherium simum simum) and the northern white rhinoceros (Ceratotherium simum cottoni). As of 2013, the southern subspecies has a wild population of 20,405 – making them the most abundant rhino subspecies in the world.
https://en.wikipedia.org/wiki/Rhinoceros
A rhinoceros (/raɪˈnɒsərəs/, meaning nose horn), often abbreviated to rhino, is one of any five extant species of odd-toed ungulates in the family Rhinocerotidae, as well as any of the numerous extinct species. Two of these extant species are native to Africa and three to Southern Asia.
https://en.wikipedia.org/wiki/Rhinoceros
how many different rhinoceros are there
There are two different rhinoceros.