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Yes, thank you Dr. Tyson.

Did you know: Rhino horns are not made of bone, but of keratin, the same material found in your hair and fingernails.

A rhino’s horn is not attached to its skull. It is actually a compacted mass of hairs that continues to grow throughout the animal’s lifetime, just like our own hair and nails. The longest horn on record belonged to a white rhino and measured just under 60 inches.

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