Woolly Mammoths Coming Back

01.18.11 | Sarah Harnisch

Woolly mammoths died out during the last ice age, but a team of researchers from Russia, Japan and the U.S. will attempt to resurrect the species using new cloning techniques. Japanese scientists discovered viable tissue from a frozen mammoth in Siberia. The team has already successfully cloned a baby mouse from cells kept in deep freeze for 16 years. The technique they're using involves extracting the frozen D.N.A. from mammoth eggs discovered and injecting that into the egg of a living elephant.  After the D.N.A. swap, the embryo will be injected into an elephant, who will hopefully be a surrogate mother to her new prehistoric baby. Scientists say if everything goes as planned, a woolly mammoth could be born in five to six years.