Professor Sereno received fossilized remains of the creature three years ago from a private collector in the American state of Massachusetts.

VOA: special.2009.10.13

He was interested in British Common Law, because his family had come to America from England many years before.

VOA: special.2009.04.29

For years, researchers blamed muscle tension from tightening in the face, neck and the skin on top of the head.

VOA: special.2010.03.30

It probably comes from an expression used for many years by people who fix parts of cars and trucks.

VOA: special.2009.11.29

From that time until she was almost seven years old, Helen could communicate only by making signs with her hands.

VOA: special.2009.11.08

In two-thousand three, American William Ruddiman first proposed that global warming resulted from human activities thousands of years ago.

VOA: special.2011.04.26

The hopeful women were also thirty percent less likely to have died from heart disease after the eight years.

VOA: special.2009.04.15

The author says Lead Belly's contract with the Lomaxes' prevented him from being represented by anyone else for five years.

VOA: special.2010.01.25

The Metropolitan Museum of Art collection covers five thousand years of human culture from all over the world.

VOA: special.2010.08.04

Through this process, scientists are able to answer questions and solve puzzles about animals and their environment from thousands of years ago.

VOA: special.2010.04.07

John Bachar was fifty-two years old when he fell from Dike Wall near his home in Mammoth Lakes,California.

VOA: special.2009.12.09

He has a box full of things that he kept from the two years he spent building a rural school in Paraguay.

VOA: special.2011.03.28

For years,fires from lightening and logger's campfires burned through the areas where the forest had been cut down.

VOA: special.2009.07.20

The Hawaiian Islands were formed starting millions of years ago by hot liquid rock flowing from undersea volcanoes.

VOA: special.2009.03.02