Discover what evolution is through a case study of a Hawaiian snail species' survival. [7:20]

This comprehensive study guide covers the main terms and concepts needed for a unit on the evolution of multicellular life.

Scientific article discussing the evolutionary processes involved when an insect species splits into two other distinct species. (Published: February 28, 2011)

Learn about the scientific hypotheses of the origin of life on Earth. [5:55]

This is a lesson designed by a biology teacher. In it, students use maps and evidence of island age, molecular genetics, morphology, and distance apart to determine how the islands came to be occupied by different species of lizards. It...

Instructional module focusing on the early work of Charles Darwin. Discusses Darwin's key role in supporting and describing the theory of evolution as driven by natural selection. Site also includes an interactive practice quiz and links...

Overview of the basic concepts behind evolution, such as gene variation and adaptations.[Free Registration/Login may be required to access all resource tools.]

Take a look at this article and find out what things we do everyday that impact or are impacted by evolution. Resources and educator links provided.

Learn about what a fossil is, the different types that scientists use for study, and processes that form them. [2:57]

This is a solid review of basic principles of population genetics with an emphasis on plants. Use this to complement your units on evolution and plant biology. Take the quiz to check your understanding.

Use the scientific reasoning and critical thinking to take an in-depth look at the basics of biology.

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...

With this article, students will be able to clarify the significance of a scientific theory and recognize that Darwin supported his theory with a great deal of evidence, and that many kinds of evidence since his time have further...

This article allows students to recognize that the process of evolution by natural selection continues to change our world and ourselves, both despite and because of our best efforts to control it.

This comprehensive study guide covers the main terms and concepts needed for a biology unit on the structure and classification of fish.

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

Through full-color images and descriptive information, learn about the evolution of the eukaryotic organisms which eventually led to the presence of protists.

Explains that analogous structures are ones that are similar in different organisms yet have no common ancestry. This type of phenomenon occurs with convergent evolution. Includes lots of examples for both animals and plants.

This video segment from Evolution: "Darwin's Dangerous Idea" shows biologists Chris Schneider and Tom Smith studying hummingbirds and other animals in Ecuador. Their research is investigating the processes by which new species are formed.

Find out how fossil evidence has been the major link to learning about Earth's geologic history. See several illustrated interpretations of a geologic time scale in this online biology textbook.

This is a great lesson plan that combines Karoytypes and evolution. Young scholars will recognize that the chromosomes of chimpanzees and humans are remarkably similar, then correlate that to their evolutionary relationship.

Instructional module focusing on Charles Darwin's theory of Descent with Modification. Discusses how slight changes from parent to offspring create variation and potentially create new species over time. Site also includes an interactive...

Article explaining the basic characteristics of mammals, their diet, reproduction, behavior, conservation concerns, taxonomy, and their evolution. (Published: September 23, 2010)

Article describes the different types of symbiosis, some of which are of mutual benefit, and others not. It also explains the differences between endosymbiosis and exosymbiosis, where one organism lives either inside or else upon the...