The evolution of modern dance, and the dance history of many of the key figures in the development of this uniquely American form, are the focus of a 13-page packet that includes photos of revolutionaries.

How do scientists know they're right? Truth be told, they don't always know. Explore the scientific process using mystery tubes in an insightful activity. Young scientists discover how to approach and solve problems in science, how ideas...

Outlines the events of Charles Darwin's own evolution into a scientist and how he developed his Theory of Evolution. Also discusses the immense resistance to his ideas that he faced from all fronts. Even today, many people refuse to...

[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...

Explore the evidence for the theory of evolution.

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

Discusses Lamarck's theory of evolution, which was developed before Charles Darwin's own theory, and how it fared over time. The core ideas in Lamarck's theory are described and his theory and Darwin's are compared. Lamarck's ideas...

Biography of Louis Agassiz, a natural historian and a contemporary of Charles Darwin. He was most famous for developing his theory of an Ice Age. Agassiz argued vehemently against the theory of evolution, based on his interpretations of...

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

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

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."

[Free Registration/Login may be required to access all resource tools.] Summarizes the key points about three theories in Earth Science: the theory of evolution, the theory of plate tectonics, and the theory of climate change due to...

Strengthen understanding of how different types of scientific evidence support the theory of evolution, including direct observation, fossils, DNA, biogeography, and comparative anatomy and embryology.

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 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."

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...

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.

A course lecture on how the Earth's geological features have evolved through the movements of tectonic plates. Explains the different types of plate boundaries and how they manifest in geological formations. Also describes the structure...

Presents a table showing the timeline of theories of evolution, a description of Darwin's theory of evolution, and a list of arguments attacking the concept of evolution.

A textbook definition along with an explanation of the scientific theory of evolution.

This Evolution Web feature explores how evidence can support a variety of hypotheses surrounding the mystery behind the extinction of the dinosaurs.

A brief biography of Wallace's time spent in the Spice Islands, and how it related to his theory of evolution. Also includes a description of the sailing vessel, 'The Alfred Wallace', which will sail to the spice islands in honor of the...

This brief explanation of punctuated equilibrium includes paragraphs on the history of the theory and the controversy surrounding it.

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