Genghis Khan's genetic legacy endures in the Y-chromosomes of millions of male descendants. Now, researchers have found evidence for the existence of ten other men who may have founded highly successful Y-chromosome lineages in Asia, beginning as early as 2100 B.C. Nature's Ewen Calloway has the details.
Is the Y chromosome really headed towards disappearing? Well, perhaps (give or take 10 million years or so.) But most likely not.