28,000-Year-Old Woolly Mammoth Cells Brought Back To Life By Scientists

Cells from a woolly mammoth that died around 28,000 years ago have begun showing “signs of life” during a groundbreaking scientific experiment. The young woolly mammoth was dug out of Siberian permafrost in 2011. With the species being extinct for about 4,000 years, finding such a relatively intact specimen was big news – particularly since this one was 28,000 years old.

Anyway, it all comes down to the fact that the scientists at the university have managed to extract nuclei from the mammoth's cells and transplant them into mouse oocytes – cells found in ovaries that are capable of forming an egg cell after genetic division. After that, the cells from the 28,000-year-old specimen started to show "signs of biological activities."