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Top 10 Facts About Rhinoceroses

Angela loves researching new facts, especially those about science and history. She feels that knowledge is essential in growth.

1. There Are Five Subspecies of Rhinos

Although all rhinos share the same basic structure, five different species of rhinos differ in very subtle ways from one another.

  • Sumatran Rhino - These are the smallest of the five remaining species. They are also the only Asian species to have two horns. Their body is covered in fur because they are the closest relative of the wooly rhino. In youth, they are reddish-brown and slowly turn black as they age. They are also the second most threatened rhinos and the most often poached.
  • Black Rhino - This species lives in Africa. They are very similar to white rhinos, except they have a hooked upper lip. Like the Sumatran rhino, they have two horns, although they occasionally will have a third much smaller one. Although considered critically endangered, their population is slowly increasing, and they are believed to be making a comeback.
  • White Rhino - These massive beasts are the second-largest land mammal and the largest of the rhinos. The most significant difference between the white rhino and the black rhino is that the white rhino has a square lip and does not have as much hair covering their bodies. They also live in Africa. There are two different subspecies of white rhinos that live in different parts of Africa. Although they are on the radar of endangered animals, their status, according to the IUCN, is near threatened, making them the least threatened of all rhinos.
  • Javan Rhino - This poor subspecies is the most endangered of all five. Their numbers are so small they only live in Ujung Kulon National Park in Java, Indonesia. There are somewhere between 58-68 of these critically endangered animal. They have a grey appearance and only one horn. They often are noted for having almost armor-like bodies as there are many folds in their skin. They used to roam throughout northeast India and Southeast Asia, but the last one in this and surrounding areas was poached in Vietnam in 2010.
  • Greater One-Horned Rhino - As its name implies, like the Javan rhino, it only has one horn. It, too, has a more armor-like body, although it is not nearly as threatened. They are vulnerable. At one point, it was near extinction, but the conservation efforts in Asia have been incredibly successful.

2. Three of the Subspecies Are Critically Endangered

The IUCN classifies how likely an animal is to become extinct. That includes:

  • stable (not currently in threat of becoming extinct)
  • vulnerable (the IUCN is keeping a close eye to make sure the numbers do not continue to decline)
  • near threatened (not yet considered endangered, but numbers are dwindling)
  • endangered
  • critically endangered
  • extinct in wild
  • and extinct

Although all rhinos have been close to extinction at one time or another, two have made a significant comeback. There are hopes and efforts to do the same for the remaining species. As stated earlier, the Javan rhino is the most endangered, followed by the Sumatran rhino. The black rhino is still critically endangered, but efforts are showing some success, and there is hope that they will make a comeback like their two cousins.

3. Native to Africa and Southern Asia

These animals live in both Africa and southern Asia. There is evidence that they once roamed Europe as cave drawings of these animals exist. The black rhino and the white rhino live in Africa. The Javan, Sumatran, and Greater One-Horned rhinoceros roam Asia. They live in tropical and subtropical grasslands, moist forests, savannas, shrublands, and deserts.

4. The Wooly Rhino Is One Known Extinct Rhino

Like the wooly mammoth, this wooly rhino was covered in fur, most likely due to its living in freezing weather. The wooly rhino shared the same diet and habits as the living species. They lived alone and ate mainly grass. Their remains have been found in ice and caught in oil-saturated soils, where they discovered they had two horns and weighed between 2-3 tons. Their fossils are relatively common and found in both Europe and Asia.

5. Rhino Horns Cost As Much As Gold on the Black Market

Although the Convention on International Trade in Endangered Species of Fauna and Flora (CITES) since 1977 has banned the trade of rhino horns, this hazardous trade still exists. Right now, the highest market for a rhinoceros horn is in China and Vietnam, where they use it as a party drug, health supplement, and hangover cure when ground up. In Vietnam, the rhino horn cures cancer.

As the demand is still present, poaching even threatens this animal. At one time, only the rich could afford to buy their horns. Unfortunately, since the middle class is growing more affluent, they can afford a rhino horn. This has caused the cost to rise and caused poachers to value this rare commodity even more. In 2015, poaching hit an all-time high when a massive slaughter killed 1,300 of these giant beasts in Africa alone.

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6. Rhinos Contribute to Economic Growth in Sanctuaries

Conservation efforts benefit when rhinos are present because they are so popular with tourists. Since much of the money raised for conservation sanctuaries is through those who visit these areas, conservation efforts flourish where a rhinoceros is present. This is beneficial for all other plants and animals that live in the same places. Therefore, elephants buffalo, among other animals, benefit just by having a rhino nearby. This also helps the people who live in these areas as it gives more jobs improving the economy. In African safaris, they are considered one of the "Big Five" most popular animals.


7. Rhinos Are Herbivores

All rhinos are herbivores, which means they only eat plant-based foods and do not eat meat. They spend their days and nights grazing continually and only sleep during the hottest parts of the day. Although they are generally solitary, they sometimes will be in a group called a crash. A dominant male will rule an area of land. Less dominant males may live there. Females will often be part of a few different territories. Fortunately, there is no need to fight over vegetation. They use their snouts to search for food and will use their horns to get bulbs and roots to eat.

8. A Rhinos Best Friend is the Oxpecker

Although a rhinoceros does prefer to be alone from others of its kind, they appreciate the companionship of the oxpecker. These birds gather in groups and will often be found sitting on a rhino's back, eating bugs on their skin. These birds will also send out warnings to their rhino friend that allows them to know when danger is near.

9. Record-Sized Indian Rhino Weighed More Than Four Tons!

The white rhino is the largest of the five species, and the Sumatran is the smallest. The white rhino grows about 12 to 13 feet (3.7 to 4 meters) long and 6 feet (1.8 meters) tall at the shoulder. They weigh around 5,000 pounds (2,300 kilograms). Sumatran rhinos grow a respectable 8 to 10 feet (2.5 to 3 meters) long and 4.8 feet (1.5 meters) tall to the shoulder. They weigh a little less than 1,800 pounds (800 kg)., although there was one rhino who weighed more than four-ton!

10. Legend Has It They Used to Stamp out Fires

Although there is no evidence that these magnificent beasts will stamp out a fire, several legends surround this idea. In Malaysia, India, and Burma, you may overhear stories of these animals rescuing people by stamping out fires that have started. In Malay, they call them badak API. The API part means fire, whereas badak means rhinoceros. There is no evidence of whether or not this is true.

Due to poaching, rhinos are magnificent endangered beasts. Without intervention, these animals could end up becoming extinct.


  • Bradford, Alina. “Facts about Rhinos.” LiveScience, Purch, 20 Mar. 2018, 10:47 am,
  • "Extinct Woolly Rhino." International Rhino Foundation. Accessed October 02, 2018.
  • "Rhino." WWF. Accessed October 02, 2018.

© 2018 Angela Michelle Schultz


Bill De Giulio from Massachusetts on August 15, 2019:

Fascinating. Thanks for the education on Rhinos.

Dianna Mendez on October 27, 2018:

This was quite interesting and educational. Didn't realize their horns were so valuable. They are fascinating creatures to watch.

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