Despite a long ban, poachers in Africa continue to kill thousands of elephants each year for the money they can make from the tusks. But now, scientists are using a sophisticated dating method to fight back — a technique based in part on the nuclear bomb tests of the 1950s.
Michael Novacek, provost of science at the American Museum of Natural History, joins Martin Savidge to discuss scientific methods used to fight the ivory trade and animals that are at risk.
[ Ссылка ]
