By looking at the levels of this carbon isotope — known as carbon-14 — in elephant tusks and ivory, researchers can find out how old they are.(Isotopes are versions of elements that have differing numbers of neutrons in their nuclei.) Knowing the age of elephant tusks is important, since many regulations of ivory trade are date-specific.Bomb tests generations ago could indirectly help fight illegal poaching of African elephants, new research shows.Nuclear weapons tested in the atmosphere in the 1950s and '60s spread a radioactive variety of carbon worldwide, which was picked up by plants during photosynthesis and then deposited in the bodies of herbivores like African elephants.
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That suggests as many as 50,000 elephants were killed to provide the ivory seized in 2011. Their prices are $595 results delivered electronically in a week. Their are also many university labs around the world that do that.The first is "to address the growing demand and markets in importing countries," he said in an email interview.
"This causes the problem and is the disease that must be treated.
They can do this by following the grain of the ivory, which shows which way the tusk grew.