[ Teens/Mature Teens ] Discusses the patterns and mechanisms of evolution. Includes history of life, microevolution, speciation, macroevolution, and the big issues.

[ Teens/Mature Teens ] Explores differences and similarities between microevolution and macroevolution. Includes definitions, examples, patterns, and accumulating change.

[ Kids/Teens/Mature Teens ] Offers a variety of interactive modules that explore the history of life on Earth, fossils and evolution. Modules are offered at 3 levels - grades K-4, 5-8, and 9-12.

[ Mature Teens ] Traces evolutionary thought as it has developed over time, pausing to ponder the contributions of scientists and thinkers including Aristotle, Darwin, and Wallace.

[ Kids/Teens/Mature Teens ] Provides students with an introduction to the history of life and how it results in the biodiversity of today. Includes the topics of geologic time, fossils, natural selection, and extinction.

[ Teens ] Includes an essay by Joe Levine on embryonic development and evolution, an ongoing 'How Did We Get Here' debate between Kenneth R. Miller and Phillip E. Johnson, and video clips of morphing embryos.

[ Kids/Teens/Mature Teens ] Presents Charles Darwin and his theory of human evolution and natural selection. Includes science education resources.

[ Teens/Mature Teens ] Explains homology and analogy in the evolution of living things and why they are important. Includes the tetrapod limb, saberteeth, how analogies evolve, and games and quizzes.