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: 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: Third Grade Science: Life Science: Adaptation and Natural Selection
[Free Registration/Login may be required to access all resource tools.] Describes how characteristics of plants and animals are inherited and how some characteristics can be affected by the environment.
CK-12 Foundation
Ck 12: Earth Science: Theory of Evolution Study Guide
[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...
Khan Academy
Khan Academy: Quiz: Life
Test your knowledge on Charles Darwin and his theory of natural selection.
Khan Academy
Khan Academy: Activities: The Evolutionary Causes of Biodiversity
An activity where students use peppers to explore reproductive potential and natural selection in part 1. In part 2, students look at traits such as dimples, tongue rolling, thumbs, ear lobes, and widow's peak to investigate individual...
Concord Consortium
Concord Consortium: Evolution: Natural Selection
The concept of interdependence in an ecosystem and its effect on the evolution of populations is further explored through a model of a dam. Students build a dam in the middle of the field, dividing the ecosystem in half to illustrate the...
Khan Academy
Khan Academy: A Brief History of Mass Extinctions
A site dedicated to knowledge about the mass extinction that have occurred in our history.
CK-12 Foundation
Ck 12: Third Grade Science
This customizable digital textbook covers topics related to third-grade science. It is Next Generation Science Standards (NGSS) aligned.
Khan Academy
Khan Academy: Ap Biology: Natural Selection: Hardy Weinberg Equilibrium
Practice exercise on Hardy-Weinberg Equilibrium.
CK-12 Foundation
Ck 12: Life Science: 4.7 Microevolution and Macroevolution
Understand the difference between microevolution and macroevolution.
CK-12 Foundation
Ck 12: Life Science: 4.3 Natural Selection
Explore the theory of evolution by means of natural selection.
CK-12 Foundation
Ck 12: Life Science: 4.1 Theory of Evolution
Discover how Charles Darwin developed the theory of evolution through his observations in the Galapagos Islands.
Other
Biology Simulations: Natural Selection
This simulation explores the survival of prey species individuals based on their coloring and the environment.
CK-12 Foundation
Ck 12: Biology: Theory of Evolution Study Guide
Explore the evidence for the theory of evolution.
CK-12 Foundation
Ck 12: Biology: Microevolution Study Guide
A general overview over the evolution of one population or one species over a short period of time.
PBS
Pbs Learning Media: Nova Evolution Lab: Interactive Lesson: Mission 1
Explore the evidence of evolution with this interactive worksheet based off of NOVA's Evolution Lab. This resource is designed to be completed while playing through the Evolution Lab game and contains multiple choice and free response...
New York University
Population Size and Genetic Drift: Lecture Notes
This is a college level lecture on genetic drift, complete with mathmatic formulae, includes special links.