The complete original text of On the Origin of Species by Charles Darwin.

[Free Registration/Login may be required to access all resource tools.] The creation of a new species is called speciation. Most new species develop naturally. But humans have also artificially created new breeds and species for...

[Free Registration/Login may be required to access all resource tools.] Study the process of speciation and two types: allopatric and sympatric presented in this module.

[Free Registration/Login Required] An informational text about problems created when nonnative species become invasive. A question sheet is available to help students build skills in reading comprehension.

[Free Registration/Login may be required to access all resource tools.] Discusses how new species evolve.

The Digital Library provides links to the texts of a dozen of works by Charles Darwing including "On the Origins of Species."

Background information and slideshow presentation on creating the Origin of Species scientific manuscripts.

Find out what you know about the origin of species with this post test.

Find out what you know about the origin of species through this pre test.

This resource provides a paper written by Dr. Charles Urbanowicz, anthropologist at California State University. It deals extensively with the life and death of Charles Darwin, his research, and the publication of his book, "The Origin...

These pages are part of a site called "Evolution," that accompany a textbook by the same name. Mark Ridley is the author. This section is about Darwin, his travels, and his observations that led to "On The Origins Of Species."

In this text excerpted from Chapter 3, "Struggle for Existence," of Charles Darwin's "On the Origin of Species," Darwin draws on firsthand and historical information for his observations about evolution.

Explore life's evolutionary history on the planet through molecular illustrations and animations. Pictorial evidence is based on origin of life research and theory.

A comprehensive description of the papers on Natural Selection published by both Darwin and Wallace in 1858. Includes full copy of Wallace's paper, 'On the Law which has regulated the Introduction of New Species.' Also includes...

Explore the work of Charles Darwin and the theory of evolution. This comprehensive resource includes information about Darwin's life in addition to the process of species evolution.

A self-directed module on all aspects of biological classifications that covers the species problem, diversity and chaos, cladistics, putting things in groups, and so on.

In this letter written to his friend and mentor Charles Lyell less than three weeks after the publication of "On the Origin of Species", Darwin describes the reaction of the great anatomist Richard Owen to his theory. From Charles...

These pages are part of a site called "Evolution," that accompanies a textbook by the same name. Mark Ridley is the author. Here he discusses theories for species change that were before Darwin published "On the Origin of Species."

This site from The Talk Origins Archive provides an article entitled, "The Modern Synthesis of Genetics and Evolution". The article is medium size in length and describes the most current ideas about evolution.

This site provides the text of "The Autobiography of Charles Darwin" by Charles Darwin.

An activity for students to explore an infograph to compare the similarities and differences between human and other species.

An outstanding collection of materials for learning about Charles Darwin and Evolution. There are many different lessons on the topics of evolution, paleontology, biodiversity, and adaptation. Each lesson is paired with an actual New...

A complete resource including a biography, chronology, examples of Wallace's published work, quotes, and interviews.

Explore the thinking of Charles Darwin, and read how his theory of evolution survives, thrives, and shapes the way we learn about nature. (February 2009)