Scientific article explaining what natural selection is, and how it manifests itself through genetics and from generation to generation. Natural selection is compared to genetic drift, both of which cause evolution to occur. The limits...

Explains what genetic drift, gene flow, and natural selection are, and compares their differences, two at a time.

A description of the process of evolution explaining the Hardy-Weinberg Principle and the mechanisms that cause it. Also the website contains links for lessons on simulation of the natural selection process in the classroom and how the...

Discusses natural selection and explains this theory in detail in reference to the evolution of the peppered moth. Discusses how the forces of natural selection lead to other kinds of speciation and evolutionary processes.

Darwin's theory of natural selection and his ideas about evolution are explained here.

These pages are part of a site called Evolution that accompany a textbook by the same name. Mark Ridley is the author. This section has an advanced discussion of determining allele and genotype frequencies using the Hardy-Weinberg ratio.

These pages are part of a site called Evolution that accompany a textbook by the same name. Mark Ridley is the author. There is a large amount of information available about adaptations and their role in evolution.

Evolution, natural selection, sexual selection, coevolution, convergent evolution, mimicry, and coloration, are the topics examined in this thorough site. Assess your comprehension of the material presented by delving into the learning...

[Free Registration/Login may be required to access all resource tools.] This study guide looks at Darwin's theory of evolution and natural selection. It also looks at some of the evidence supporting the theory of evolution (comparative...

This entry identifies the defining characteritics of animal evolution, including adaptation, speciation, extinction, animal parternships and natural selection.

Concise description of embryology as evidence for evolution, as used by Darwin.

This lesson will introduce the concept of evolution and describe how and why organisms evolve.

Wikipedia offers a site on the topic of sexual selection, including an image and a description of one of the most famous types of sexual selection.

The main concepts in Charles Darwin's theory of evolution are described, how natural selection works, and the ongoing criticism of evolution from Creationists.

Explore the evidence for the theory of evolution.

Examine the six major mechanisms of evolution and evolutionary processes.

[Free Registration/Login may be required to access all resource tools.] Summarizes the key points about adaptations, mutation, evolution, and natural selection. Includes a few questions to check for understanding.

Take a closer look into the modern view of evolution. This article includes many pieces of evidence, all which support the theory of evolution.

This is a group of Mendelian Genetics exercises that are designed to show the evolution of a trait within a population. The site covers instruction in calculating genotypic and allelic frequencies, determining dominance, the...

A detailed website that explains the history and process of classifying animals using evolutionary, molecular, and physical characteristics relationships. Website also contains information on evolution and evolutionary processes....

The Understanding Evolution website for teachers provides common examples of evolution, especially by artificial selection.

Read a brief, but clear description of the three evolutionary processes that occur in species over time.

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

A biography of Charles Darwin.