Studies show that some American Robins are appearing in their nesting areas two weeks earlier than thirty years ago.

VOA: special.2009.05.12

Some men made as many as thirty trips before they had all of their supplies at the top.

VOA: special.2009.02.11

The team found levels of lead as high as thirty-two thousand parts per million in tests on some paint samples from Ecuador.

VOA: special.2009.08.31

He stood two hundred thirty-one centimeters -- tall even for a Dinka, some of Africa's tallest people.

VOA: special.2010.07.05

In nineteen thirty-five, the president of Purdue University in Indiana asked Amelia to do some work there.

VOA: special.2010.05.26

In some areas there, monkeys play in the tops of mangroves thirty meters tall and dolphins swim in the waters of mangrove forests.

VOA: special.2010.04.20

By some estimates,non-Hispanic whites will become a minority in the United States in about thirty years.

VOA: special.2011.06.13

By some estimates, the cost of the cleanup could reach thirty-seven billion dollars.

VOA: special.2010.06.04

Some therapies,for example, call for twenty or thirty visits with a therapist.

VOA: special.2010.04.13

Thirty-nine of the fifty states elect at least some of their judges.

VOA: special.2009.06.12

Down two and a half. Kicking up some dust. Thirty feet.

VOA: special.2009.07.15

Three-hundred-thirty lawmakers from some of the most liberal members of the House to the most conservative signed on to the letter.

VOA: standard.2010.04.14