But he also said additional research is needed to better understand how the vaccine reduced the risk in those individuals.

VOA: special.2009.10.13

He studied more than two hundred echidna shelters to understand where they like to hide and how often they change homes.

VOA: special.2009.07.07

"I don't understand. How can they have no record of her being there." "There has to be some explanation."

VOA: special.2009.06.12

They say it will help scientists better understand how to protect long-beaked echidnas and the areas where they live.

VOA: special.2009.07.07

She shows how Darwin came to understand that these island animals had differences, developed over time, that helped them survive.

VOA: special.2009.02.27

They are hoping to learn more about dark matter in an effort to better understand how the universe expands and shrinks.

VOA: special.2009.07.21

It uses objects from the museum's collection to show how Darwin helped us understand the history of life on Earth.

VOA: special.2009.12.01

The show's creators studied the children they were targeting very carefully to understand how to best keep them entertained -- and learning.

VOA: special.2009.11.27

If your friend does not seem to understand how painful your broken heart is, you may ask her to have a heart.

VOA: special.2010.07.18

"I mean it's hard to even understand how biology was a science as we would recognize it today.

VOA: special.2009.12.01

So,just being able to pick one of those up will help our visitors understand how difficult portability was about thirty years ago."

VOA: special.2011.02.15

They should make sure they understand how and when to take their medicines.

VOA: special.2009.07.28

She says it is important to understand how appearance communicates personality.

VOA: special.2009.11.24

Because we think once we understand how they work, we could be able to manipulate the mosquito genetically and convert mosquitoes that can transmit malaria into mosquitoes that cannot transmit malaria."

VOA: special.2009.12.22