Dolly Sods once was covered with a dense ancient forest of red spruce and hemlock trees.

VOA: special.2009.07.20

He says one of the most common methods for suppressing weeds is dense planting.

VOA: special.2009.05.26

Dense planting of a crop can also act as a natural control.

VOA: special.2009.05.26

Dense areas of deep coral that have taken hundreds of years to grow are located under the oil slick.

VOA: standard.2010.05.26

"So the combination of eating more calorie-dense food and having fewer opportunities for physical activity, that's what creates this obesity epidemic."

VOA: standard.2010.07.02