These pictures show young readers what led Darwin to form his great discovery: the evolution of species through natural selection.

VOA: special.2009.02.27

The animals on the islands influenced British nature scientist Charles Darwin's ideas about evolution by natural selection.

VOA: special.2009.12.16

But natural selection has stood the test of time as a basis for the science of biology.

VOA: special.2009.12.01

He developed the theory of evolution that life on Earth developed through the process of natural selection.

VOA: special.2009.12.16

But it was Darwin who identified and explained the process, natural selection, that causes life to evolve.

VOA: special.2009.02.25

A year later,Darwin would complete his detailed study of evolution through natural selection.

VOA: special.2009.12.01

But biologists use the term "natural selection" to describe the evolutionary process.

VOA: special.2009.02.25

Natural selection does not explain everything about why species evolve.

VOA: special.2009.02.25

That theory is known as evolution through natural selection.

VOA: special.2009.02.25

This is the idea of natural selection.

VOA: special.2009.12.01

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