Rhinoceros horn cups have been in the news lately with very high prices reported for sales of 18th- and 19th-century carved Chinese libation cups. But do you know what a rhinoceros horn is made of? We were surprised to learn is not horn but keratin, the main component in hair, fingernails, and hooves. Fame has harmed the endangered species, poachers are cutting the horns from live rhinos and leaving the animals to die. And even dead rhinos are being mistreated. Thieves are cutting the horns off stuffed rhinos in natural history exhibits. Over thirty thefts have been reported in Europe this year.
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