For example, permanent populations of Canada geese in North America have increased three hundred percent in eighteen years to four million birds.

VOA: special.2009.04.01

The discovery of the largest oil and gas field in North America led to the Alaska Pipeline.

VOA: special.2009.03.02

It is the largest trade show of any kind in North America with over one hundred thirty thousand square meters of exhibition space.

VOA: special.2010.01.26

Doctor Fukuda, the agency's top flu expert, says the virus continues to spread in North America.

VOA: special.2009.06.10

At the hearings, one of the subjects discussed was the increase in populations of large birds in North America that could threaten other planes.

VOA: special.2009.06.13

He said his country was willing to sell some of its territory in North America.

VOA: special.2010.02.11

It says an explosion or explosions by comets could explain the disappearance of many animals and human beings who lived in North America at that time.

VOA: special.2009.01.20

The Big Room is the single largest underground chamber ever found in North America.

VOA: special.2009.12.07

In North America and Central America, the forest area remained about the same.

VOA: special.2010.04.06

This makes them some of the youngest mountains in North America.

VOA: special.2009.02.16

The Tyrannosaurus lived in North America during the late Cretaceous Period.

VOA: special.2009.09.01

It affects more than one million people in North America.

VOA: special.2009.04.07

They include the tallest mountain in North America.

VOA: special.2009.03.02

"The Islamic schools in North America, there are over 100 of them teaching the curriculum of the state."

VOA: standard.2010.07.12

Worries about an anticipated resurgence of swine flu in North America later this year is expected to be an urgent topic at the summit.

VOA: standard.2009.08.10

The virus appeared to be leveling off in North America and Europe by year's end.

VOA: standard.2009.12.25

He says all of the infections, which have occurred in other parts of the world have stemmed from people who had been traveling in North America.

VOA: standard.2009.05.14

"It is very important.Super important. it involves all of us whether we live here in Denmark or whether we live in Asia or in North America,for that matter."

VOA: standard.2009.12.06

Most of those deaths occurred in North America.

VOA: standard.2009.12.25

"There are opportunities for small farmers in Africa in this market for some tropical products that cannot be grown in North America or Europe, for example products like organic cocoa or organic sugar,organic fruits and vegetables."

VOA: standard.2010.04.11

The H1N1 virus, which is commonly known as swine flu, has spread rapidly around the world since emerging in North America earlier this year, yet still much of what makes it so potent a threat remains a mystery.

VOA: standard.2009.08.25