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Dating ivory

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It's about new forensic methods developed for the fight against poaching of elephants for their ivory. While the Asian elephant was already listed in Appendix I since , the African elephant, commercially used for centuries, got listed under Appendix I in This means that commercial trade of ivory from African as well as Asian elephants was banned. Some African populations recovered and 10 years later these where downgraded in Appendix II a.
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How to Identify Antique Ivory

Dating ivory
Dating ivory
Dating ivory
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Authenticity and Age of Ivory - Spectroscopic Analysis

University of Utah researchers developed a new weapon to fight poachers who kill elephants, hippos, rhinos and other wildlife. By measuring radioactive carbon deposited in tusks and teeth by open-air nuclear bomb tests, the method reveals the year an animal died, and thus whether the ivory was taken illegally. It was published online the week of July 1 in the journal Proceedings of the National Academy of Sciences. Not only can the method help wildlife forensics to combat poaching, but "we've shown that you can use the signature in animal tissues left over from nuclear weapons testing in the atmosphere to study modern ecology and help us learn about fossil animals and how they lived," says Cerling, a distinguished professor of geology and geophysics, and biology at the University of Utah. The method uses the "bomb curve," which is a graph — shaped roughly like an inverted "V" — showing changes in carbon levels in the atmosphere — and thus absorbed by plants and animals in the food chain.
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