Mister Riordan says there was only one subject that amazed his students more than ancient Greece and that was ancient Egypt.

VOA: special.2009.10.12

The study says mangrove trees provide more than one and a half billion dollars worth of services to ecological systems worldwide.

VOA: special.2010.04.20

But literature can help them understand human conflict, and he says no one has more insight into that than William Shakespeare.

VOA: special.2011.06.06

The United Nations Food and Agriculture Organization estimates that more than one billion of the world's people faced hunger last year.

VOA: special.2010.01.11

The National Oceanic and Atmospheric Administration estimated that fishing operations kill more than one hundred million sharks every year.

VOA: special.2009.06.16

One of the drivers found the car's directions to be more exact and dependable than those from a human passenger.

VOA: special.2009.11.03

He was surprised to see land turtles that weighed more than two hundred kilograms and were more than one meter long.

VOA: special.2009.12.16

Those with the highest winds that destroy well-built homes and throw vehicles more than one hundred meters are called an F-five.

VOA: special.2010.05.11

Barbara Klein has more. Katrina was the costliest and one of the deadliest hurricanes to ever strike the United States.

VOA: special.2010.01.22

He faced winds blowing more than one hundred twenty kilometers an hour, and ocean waves at least twenty meters high.

VOA: special.2009.03.22

But one day you go to the store and discover that the price is more than you can pay.

VOA: special.2010.03.23

It was responsible for more than four and one-half percent of all the years people lived with disability.

VOA: special.2009.09.08

Asthma affects more than seven million children each year and is considered one of the leading childhood illnesses.

VOA: special.2009.07.28

In the next four years, more than one-and-a-half-million cattle were moved north over the Chisholm trail to Kansas.

VOA: special.2010.03.18