- Rhinoceros means Nose horn mammal. It is found in Asia and Africa. 22 September is celebrated as World Rhinoceros Day.
- There are five sub species of rhinoceros namely Black, Rhinoceros, Indian or greater one-horned rhinoceros, Javan and Sumatran. The Black, Javan, and Sumatran rhinoceros are critically endangered as per IUCN red list.
- Sumatran rhinoceros have two horns, while the Indian and Javan rhinoceros have a single horn.
- The weight of a full-grown rhino is around 7700 pounds. It is the second-largest mammal after elephants. Rhinos has the ability to swim.
- Rhinoceros give birth to one calf at a time. The average life span is around 40 years.