Some other experts say that the ancestor of the modern guitar was brought to Spain from Persia sometime in the twelfth century.

VOA: special.2010.05.12

More than forty percent of Americans have an ancestor who passed through Ellis Island.

VOA: special.2009.06.29

Rebecca Skloot says she hopes that scientific companies that have gained from HeLa cells will give back to the family whose ancestor changed the history of medicine.

VOA: special.2010.07.21

And so there was an assumption that our common ancestor with them would have been something that also walked that way.

VOA: standard.2009.12.24

That's how long it took for an international team of scientists to excavate and analyze the fossilized skeleton of a 4.4 million year old human ancestor, Ardipithecus ramidus, which was discovered in Ethiopia.

VOA: standard.2009.12.24