When the "Origin of Species" was published in 1859, the ambitions and scopes of science were dramatically expanding. "Origin of Species" marked the transition of biology from a prescience to a science. [4:04]

Learn about the scientific hypotheses of the origin of life on Earth. [5:55]

This slideshow provides a brief overview of Charles Darwin and his theory of evolution, natural selection and survival of the fittest.

The University of Cambridge has posted Darwin's entire collection of works and correspondence totaling 50,000 text pages and 40,000 images. This is an amazingly comprehensive resource that has posted both images of the original texts and...

This resource provides graphics, as well as explanation, of the remains of Homo habilis.

This content from TalkOrigins.org is within a discussion of frequently asked questions about evolution. It discusses some basics about sexual selection. It also provides an explanation for the usual dominanceof the female in the sexual...