Charles Darwin

Charles Darwin on Facts and Theory

About 30 years ago there was much talk that geologists ought to observe and not to theorize; and I well remember someone saying that at ... » Go

Charles Darwin on the Need for Mechanism

In considering the Origin of Species, it is quite conceivable that a naturalist, reflecting on the mutual affinities of organic beings, on their embryological relations, their geographical ... » Go

On the Origin of Species

The publication of Darwin’s The Origin of Species in 1859 marked a dramatic turning point in scientific thought. The volume had taken Darwin more than twenty years ... » Go

Charles Darwin on Transitional Forms

The number of intermediate varieties, which have formerly existed on the earth, (must) be truly enormous. Why then is not every geological formation and every ... » Go