The word rhinoceros is a combination of two Greek words – rhino (nose) and ceros (horn).
There are five living species of rhinoceros – white, black, greater one-horned, Javan and Sumatran. In addition, a number of other animals have rhinoceros as part of their names, including the rhinoceros auklet, rhinoceros beetle, rhinoceros chameleon, rhinoceros cockroach, rhinoceros fish, rhinoceros hornbill, rhinoceros iguana, rhinoceros rat snake, rhino shrimp, and rhinoceros viper. All of them have horn-like appendages on their noses.
Rhinos have also been referred to as pachyderms.
The name pachyderm also comes from two Greek words – pachys (thick) and derma (skin). Many years ago, zoologists grouped a number of thick-skinned species together as pachyderms, including rhinos, tapirs, horses, elephants, hippos, pigs, peccaries, and hyraxes. This classification is no longer considered useful, but the name is still used every now and then.
Rhino is sometimes used as a nickname.
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