University of California
University of California Museum of Paleontology: Homologies
These pages are from the Understanding Evolution website for teachers. They focus on homologous structures that organisms with common ancestors share.
PBS
Pbs: How Does Evolution Work?: Breeding Bunnies
This resource provides directions for a lab in which students observe changes in a gene pool of bunnies affected by natural selection. Includes PDF resources.
Talk Origins Archive
Talk Origins Archive: Random Genetic Drift
Laurence Moran discusses one of the most important mechanisms of evolution, Random Genetic Drift.
New York University
Nyu: Darwin's Evidence for Evolution: Embryology
Concise description of embryology as evidence for evolution, as used by Darwin.
Other
The Evidence for Evolution
These pages are part of a site called "Evolution," that accompanies a textbook by the same name. Mark Ridley is the author, and in this section he discusses the evidence for evolution.
Scholastic
Scholastic: Study Jams! Science: Animals: Animal Adaptations
A video and a short multiple-choice quiz on the topic of animal adaptations, that look at physical and behavioral adaptations.
Vision Learning
Visionlearning: Biology: Adaptation: The Case of Penguins
Instructional module focusing on why species change over time through behavioral and physical adaptations. Discusses how environmental mechanisms influence adaptive evolution. Site also includes an interactive practice quiz and links...
University of California
Understanding Evolution: Mechanisms: The Processes of Evolution
Examine the six major mechanisms of evolution and evolutionary processes.
Bryn Mawr College
Bryn Mawr College: Evolution by Natural Selection
Students develop their understanding of natural selection by analyzing specific examples and carrying out a simulation.
Howard Hughes Medical Institute
Hhmi: Biointeractive: Schooling Behavior Stickleback Fish From Different Habitats
A team of scientists studied the schooling behavior of threespine stickleback fish by experimentally testing how individual fish responded to an artificial fish school model.
Michigan State University
Michigan State University: How Pesticide Resistance Develops
An individual organism's genes determine its physical and behavioral traits. When individuals reproduce, they pass along unique combinations of genes to their offspring. Different environments favor individuals with different physical...
![History Tools: Charles Darwin on the Origin of Species 1859 [Pdf] Primary](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "History Tools: Charles Darwin on the Origin of Species 1859 [Pdf] Primary")
History Tools
History Tools: Charles Darwin on the Origin of Species 1859 [Pdf]
Features excerpts from the introduction and conclusion of Charles Darwin's famous book, On the Origin of Species by Means of Natural Selection.
BBC
Bbc: Gcse Bitesize: Natural Selection and Evolution
Darwin's theory of evolution explains how species of living things have changed over geological time in order to survive in the changing environment. A link to a test is provided.
BBC
Bbc: Gcse Bitesize: Genetic Inheritance
Mutations can cause a permanent change in the DNA of an organism. Over many generations, organisms have adapted through mutation which involves small changes between organisms which may allow that organism to compete better for survival....
BioMan Biology
Bio Man Biology: Snurfle Islands
Create a Snurfle and see whether it can survive in different environments. As you play the game, you will learn about natural selection and animal adaptations. At the end of the game, try the multiple-choice quiz to check your...
BiologyWise
Biology Wise: Genetic Drift vs. Gene Flow vs. Natural Selection
Explains what genetic drift, gene flow, and natural selection are, and compares their differences, two at a time.
BiologyWise
Biology Wise: Definition and Examples of Stabilizing Selection
Explains what stabilizing selection is and how this type of natural selection actually limits genetic diversity in a population. Presents examples of stabilizing selection in different plants and animals.
CK-12 Foundation
Ck 12: Life Science: Natural Selection
[Free Registration/Login may be required to access all resource tools.] The theory of evolution by natural selection means that the inherited traits of a population change over time. Inherited traits are features that are passed from one...
CK-12 Foundation
Ck 12: Life Science: Theory of Evolution by Natural Selection
[Free Registration/Login may be required to access all resource tools.] Do you ever wonder why some birds are big like ostriches and some birds are small like robins? Or why a lion has a mane while a leopard has spots? In the 19th...
CK-12 Foundation
Ck 12: Biology: Theory of Evolution by Natural Selection
[Free Registration/Login may be required to access all resource tools.] Overview of the basic concepts behind evolution.
CK-12 Foundation
Ck 12: Biology: Theory of Evolution by Natural Selection
[Free Registration/Login may be required to access all resource tools.] Covers Darwin's theory of evolution by natural selection.
CK-12 Foundation
Ck 12: Life Science: Mass Extinctions
[Free Registration/Login may be required to access all resource tools.] An organism goes extinct when all of the members of a species die out and no more members remain. Extinctions are part of natural selection. Species often go extinct...
CK-12 Foundation
Ck 12: Earth Science: Adaptation and Evolution of Populations
[Free Registration/Login may be required to access all resource tools.] Explains how natural selection favors certain traits in a population so that the organism adapts to its environment, and that changes in the genes over time cause...
CK-12 Foundation
Ck 12: Earth Science: Evolution, Plate Tectonics, and Climate Change
[Free Registration/Login may be required to access all resource tools.] Looks at the theories of evolution, plate tectonics, and global warming.