Do You Know the Rinoceros?

Do You Know the Rinoceros?

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This new addition to the popular Do You Know series tells young naturalists everything they ever wanted to know about rhinos: — The record for the longest horn is held by a white rhinoceros. Its horn was 1.66 metres (5.2 feet) long. — A broken horn will regrow in two to three years. Just like our nails and hair, a rhinoceros horn is made of keratin.