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December 06 2011
Woolly Mammoth Cloned Within Five Years? We’ll Believe It When We Ride It
Japan’s Kyodo News reports that Russian and Japanese scientists will start a project early next year to clone the woolly mammoth. The researchers also confirmed that a well-preserved mammoth thigh bone found in August contains remarkably well-preserved marrow cells.
The team, including researchers from a Siberian mammoth museum and Japan’s Kinki University, plan to extract an undamaged nucleus from the extinct animal’s bone marrow and insert it into the egg of an African elephant, a related animal; if all goes well the elephant could then give birth to a baby mammoth. The team has worked toward cloning the beast for more than a decade but until August, hadn’t found a sufficiently intact source of mammoth DNA (although they did create a copy of mammoth hemoglobin).
What could possibly go wrong? Assuming scientists can extract an undamaged nuclei from tissue that’s been frozen for more than 10,000 years, they then need to successfully insert it into an African elephant’s egg. This won’t be simple, considering that even procuring elephant ova is a challenge, said Japanese researcher Akira Iritani. And the cloning success rate for (non-extinct) animals like cattle is only 30 percent. The cloning technique Iritani plans to ...
