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Did you know a rhinoceros's horn is made of keratin, the same protein found in human fingernails and hair? Perhaps you have read the common but incorrect report that a rhino's horn is made of compressed hair. Nope, a rhino's horn contains no hair-like fibers. Instead, it grows in layers of specialized skin cells. These cells fill with keratin and become inert and solid. Kind of like a horse's hoof, or a turtle's beak.
Rhino horns continue to grow several centimeters per year throughout the animal's life. You might think rhino horns naturally grow in a cone shape, but they actually grow like a cylinder. The pointed cone shape is a result of the rhino constantly scraping the horn against rocks, trees, and the ground, as well as fighting with other rhinos.
Here's a bonus rhino fact. Rhinos communicate using their poop. How? Rhinos often tend to poop and urinate in the same location as other rhinos—a place called a latrine. Rhino's have a keen sense of smell, and when a rhino goes to a latrine, it can smell the poop and urine of others and therefore learn who else is in the area.
Rhino horns continue to grow several centimeters per year throughout the animal's life. You might think rhino horns naturally grow in a cone shape, but they actually grow like a cylinder. The pointed cone shape is a result of the rhino constantly scraping the horn against rocks, trees, and the ground, as well as fighting with other rhinos.
Here's a bonus rhino fact. Rhinos communicate using their poop. How? Rhinos often tend to poop and urinate in the same location as other rhinos—a place called a latrine. Rhino's have a keen sense of smell, and when a rhino goes to a latrine, it can smell the poop and urine of others and therefore learn who else is in the area.
Photo Credits:
- Rhinoceros - DepositPhotos
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