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...

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...

[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.

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...

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...

An introduction to Darwin's theory of evolution with hyperlinks to other topics on evolution, including a timeline of evolutionary thought.

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

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

A biography of Charles Darwin.

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

A biography of Thomas Henry Huxley, a contemporary of Charles Darwin, and a strong supporter of his theory of evolution.

[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...

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

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.

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.

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."

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

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.

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.

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

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...

A biography of the remarkable life of Thomas Huxley, who began his life in abject poverty, but through self-education and dedication, became a star in world science.