What is the rhinoceros horn made of?

The rhinoceros horn is not a true horn, because it is not made of keratin.

The horn of a rhinoceros is made of a solid mass of compressed hair.

The horn of most animals, such as antelopes, cattle, and buffalos, is made of keratin, which is the same material as human fingernails. These horns are hollow. The rhinoceros horn is not hollow (it is solid) and it is not made of keratin (it is made of hair).

Photographer: Martina Nicolls

Martina Nicolls: SIMILAR BUT DIFFERENT IN THE ANIMAL KINGDOM