The coral whitens when it becomes stressed by warmer temperatures and expels the algae organisms it needs to survive.

VOA: special.2009.04.22

The money will be used to meet emergency needs, such as water,food and shelter for homeless people in Haiti.

VOA: special.2010.04.02

But George Dimopoulos says malaria needs to be attacked with drugs,with vaccines, with bed nets with whatever researchers can find.

VOA: special.2009.12.07

Another study found that almost half of American workers expressed concern about their ability to provide for immediate family needs.

VOA: special.2009.03.24

But he needs to be faithful and true, can take care of property and invest money with good judgment.

VOA: special.2010.04.24

Some economists think the plan needs to provide as much as one trillion dollars or more to be effective.

VOA: special.2009.01.09

But more needs to be done. She says there currently are not enough programs to study bird numbers and behavior.

VOA: special.2009.05.12

College can be stressful. Sometimes doing nothing at all is just what a student needs after studying for final exams.

VOA: special.2010.06.18

The brain also needs a "cognitive rest," they say, by restricting activities like video games, texting and watching TV.

VOA: special.2009.10.28

Recently,a group of experts advised the Food and Drug Administration that the drug needs more controls and better directions for use.

VOA: special.2009.07.21

Jan Low with the International Potato Center, a research organization, says the sweet potato needs a better image in Africa.

VOA: special.2011.01.04

But U.N.Secretary-General Ban Ki-moon said the targets are too far in the future and that more needs to be done sooner.

VOA: special.2009.07.11

But,once the fire is out, the well still needs to be covered,or capped, to stop the flow of oil.

VOA: special.2009.03.22

Greece needs to borrow more than seventy billion dollars this year to finance its budget and refinance its debts.

VOA: special.2010.02.12