We tell about a new children's book on Charles Darwin and his famous theory .

VOA: special.2009.02.27

But Professor Gaechter says his team's theory was that punishment has only low costs because it needs to be used rarely and works as a threat.

VOA: special.2009.03.03

On stage,Milner tells the story through music. Darwin's theory of evolution through natural selection inspires some tunes,and episodes in his life inspire others.

VOA: standard.2009.11.25

In 1981 Ayala joined a legal battle as an expert witness in the challenge against an Arkansas law mandating that the biblical story of creation be taught in schools, alongside Darwin's theory of evolution.

VOA: standard.2010.04.05

One argument against the comet theory is that a comet would have left a large hole in the Earth's surface.

VOA: special.2009.01.20

One theory is that the shape developed over the ages to improve this shark's sense of smell.

VOA: special.2010.08.03

She said the discovery "supports the theory that some of life's ingredients formed in space and were delivered to Earth long ago by meteorite and comet impacts."

VOA: special.2009.09.30

He became that nation's first professor of theory of physics.

VOA: special.2009.06.14

"Now that gets mutated into a conspiracy theory where the U.S.

VOA: standard.2010.07.08