LifeAncestry of first Americans revealed by a boy's genome The genes of a boy who died 12,600 years ago show that all indigenous people in the Americas seem to be descended from the same group of ancestors News
LifeInfectious cancer preserves dog genes for 11,000 years A venereal cancer prevalent in dogs throughout the world 11,000 years ago still carries the genes of the single dog in which it began life News