The American Academy of Family Physicians says most children stop sucking their thumb by the age of four.

VOA: special.2009.03.11

The female mosquito uses its thin sucking tube to break the skin, find blood and inject the victim with a substance that keeps blood flowing.

VOA: special.2009.05.26

These include hearing a roaring or sucking noise, seeing the ocean suddenly pull back or rise, or feeling a strong earthquake that lasts more than twenty seconds.

VOA: special.2011.06.07

Cultures around the world have their own versions of these blood-sucking creatures.

VOA: special.2010.01.20

You're not even a lowlife,scum-sucking maggot! Get your maggoty asson the bus!

VOA: standard.other