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Adaptive Radiation: Darwin's Finches
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Finches on the Galapagos Islands have evolved to exploit almost every possible niche. This diagram shows the range of food sources available on the island and the different beak shapes adapted to exploit each of them.

Subject:
Life Science
Material Type:
Diagram/Illustration
Reading
Provider:
PBS LearningMedia
Provider Set:
PBS Learning Media: Multimedia Resources for the Classroom and Professional Development
Author:
National Science Foundation
WGBH Educational Foundation
Date Added:
09/26/2003
Allopatric Speciation
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These images from the Smithsonian Institution depict Nancy Knowlton's work with snapping shrimp in Panama. Knowlton found that the closing of the isthmus -- dividing the Pacific Ocean from the Caribbean -- resulted in new species of shrimp.

Subject:
Geoscience
Life Science
Physical Science
Material Type:
Diagram/Illustration
Reading
Provider:
PBS LearningMedia
Provider Set:
PBS Learning Media: Multimedia Resources for the Classroom and Professional Development
Author:
National Science Foundation
WGBH Educational Foundation
Date Added:
09/26/2003
American Chestnut Tree
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This annotated slideshow adapted from KET's Electronic Field Trip to the Forest illustrates how blight decimated the American chestnut tree and the methods scientists use to identify and pollinate the remaining trees to create blight-resistant trees.

Subject:
Ecology
Forestry and Agriculture
Genetics
Geoscience
Life Science
Physical Science
Material Type:
Interactive
Reading
Provider:
PBS LearningMedia
Provider Set:
Teachers' Domain
Author:
KET
The William and Flora Hewlett Foundation
Date Added:
08/25/2008
Bad At Estimating? Blame Evolution
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Some Rights Reserved
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The next time you are in the kitchen, try this experiment: pick up a box of butter (four sticks) in one hand and a box of saltines (four packets) in the other. Which is heavier? If you said the butter, you are not alone. Most people would identify the box of butter as the heavier object even though, if you look at the labels, you'll see that they both weigh exactly one pound! This is an example of the size-weight illusion, and it is incredibly common. Read more to see the evolution (and baseball) connection ...

Subject:
Biology
Life Science
Material Type:
Diagram/Illustration
Reading
Provider:
University of California Museum of Paleontology
Provider Set:
Understanding Evolution
Date Added:
02/01/2011
Bean-Counter Evolution
Conditional Remix & Share Permitted
CC BY-NC-SA
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Hunt for prey and discover the meaning of evolutionary “fitness” in this physically active group game. In this simulation game, teams of predators equipped with genetically different “mouths” (utensils) hunt for “prey” (assorted beans). Over several “generations” of play, the fittest among the predators and prey dominate the population, modeling the evolutionary process of natural selection.

Subject:
Biology
Life Science
Material Type:
Activity/Lab
Provider:
Exploratorium
Provider Set:
Science Snacks
Date Added:
04/03/2019
The Benefits of Biodiversity
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Educational Use
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Students toss coins to determine what traits a set of mouse parents possess, such as fur color, body size, heat tolerance, and running speed. Then they use coin tossing to determine the traits a mouse pup born to these parents possesses. Then they compare these physical features to features that would be most adaptive in several different environmental conditions. Finally, students consider what would happen to the mouse offspring if those environmental conditions were to change: which mice would be most likely to survive and produce the next generation?

Subject:
Applied Science
Engineering
Genetics
Life Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Mary R. Hebrank
Date Added:
10/14/2015
Biodiversity and natural selection
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CC BY-NC-SA
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Patterns and processes of evolution. How evolution and natural selection are reflected in the similarities and differences of organisms.

Subject:
Biology
Life Science
Material Type:
Lesson
Provider:
California Academy of Sciences
Provider Set:
California Academy of Sciences
Author:
California Academy of Sciences
Date Added:
10/29/2014
Biology
Unrestricted Use
CC BY
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Biology is designed for multi-semester biology courses for science majors. It is grounded on an evolutionary basis and includes exciting features that highlight careers in the biological sciences and everyday applications of the concepts at hand. To meet the needs of today’s instructors and students, some content has been strategically condensed while maintaining the overall scope and coverage of traditional texts for this course. Instructors can customize the book, adapting it to the approach that works best in their classroom. Biology also includes an innovative art program that incorporates critical thinking and clicker questions to help students understand—and apply—key concepts.

Subject:
Biology
Life Science
Material Type:
Full Course
Provider:
Rice University
Provider Set:
OpenStax College
Date Added:
08/22/2012
Biology, Evolutionary Processes, Evolution and the Origin of Species, Understanding Evolution
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CC BY-NC
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By the end of this section, you will be able to:Describe how the present-day theory of evolution was developedDefine adaptationExplain convergent and divergent evolutionDescribe homologous and vestigial structuresDiscuss misconceptions about the theory of evolution

Subject:
Applied Science
Biology
Life Science
Material Type:
Module
Date Added:
07/10/2017
Biology, Evolutionary Processes, The Evolution of Populations, Adaptive Evolution
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CC BY-NC
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By the end of this section, you will be able to:Explain the different ways natural selection can shape populationsDescribe how these different forces can lead to different outcomes in terms of the population variation

Subject:
Applied Science
Biology
Life Science
Material Type:
Module
Date Added:
07/10/2017
Biology, Evolutionary Processes, The Evolution of Populations, Population Evolution
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CC BY-NC
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By the end of this section, you will be able to:Define population genetics and describe how population genetics is used in the study of the evolution of populationsDefine the Hardy-Weinberg principle and discuss its importance

Subject:
Applied Science
Biology
Life Science
Material Type:
Module
Date Added:
07/10/2017
Biology, Evolutionary Processes, The Evolution of Populations, Population Genetics
Conditional Remix & Share Permitted
CC BY-NC
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By the end of this section, you will be able to:Describe the different types of variation in a populationExplain why only heritable variation can be acted upon by natural selectionDescribe genetic drift and the bottleneck effectExplain how each evolutionary force can influence the allele frequencies of a population

Subject:
Applied Science
Biology
Life Science
Material Type:
Module
Date Added:
07/10/2017
Build-a-Fish
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Educational Use
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In this interactive activity from Shedd Aquarium, build a fish and then release it into the reef to search for food and evade predators. Try different combinations and observe how each kind of fish has unique adaptations that help it survive in its habitat.

Subject:
Life Science
Material Type:
Activity/Lab
Interactive
Provider:
PBS LearningMedia
Provider Set:
PBS Learning Media: Multimedia Resources for the Classroom and Professional Development
Author:
National Science Foundation
WGBH Educational Foundation
Date Added:
08/09/2007
Carnivorous Plants of Cartwheel Bay
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In this video segment from NatureScene, explore Cartwheel Bay, a wetland in South Carolina, and learn about the variety of carnivorous plants native to this unique landform.

Subject:
Ecology
Forestry and Agriculture
Geoscience
Life Science
Physical Science
Material Type:
Lecture
Provider:
PBS LearningMedia
Provider Set:
PBS Learning Media: Multimedia Resources for the Classroom and Professional Development
Author:
SCETV
The William and Flora Hewlett Foundation
Date Added:
08/20/2008
Color Variation over Time in Rock Pocket Mouse Populations
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This activity provides an introduction to natural selection and the role of genetic variation by asking students to analyze illustrations of rock pocket mouse populations (dark/light fur) on different color substrates in the Sonoran Desert (light/dark) over time. Based on this evidence, and what they learn about variation and natural selection in the accompanying short film, students use this evidence to explain the change in the rock pocket mouse populations on the lava flow (dark substrate) over time. This is one of several classroom activities, focusing on related topics and varying in complexity, built around the short film. This ten minute film shows adaptive changes in rock pocket mouse populations, demonstrating the process of natural selection and can be accessed at http://www.hhmi.org/biointeractive/making-fittest-natural-selection-and-adaptation. The film is also available as an interactive video with embedded questions, which test students’ understanding as they watch the film.

Subject:
Genetics
Life Science
Material Type:
Lesson Plan
Provider:
National Science Teachers Association (NSTA)
Provider Set:
NGSS@NSTA
Author:
Mary Colvard
Date Added:
10/12/2015
Conflicting Selection Pressures
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Explore how populations change over time in a NetLogo model of sheep and grass. Experiment with the initial number of sheep, the sheep birthrate, the amount of energy sheep gain from the grass, and the rate at which the grass re-grows. Remove sheep that have a particular trait (better teeth) from the population, then watch what happens to the sheep teeth trait in the population as a whole. Consider conflicting selection pressures to make predictions about other instances of natural selection.

Subject:
Ecology
Education
Forestry and Agriculture
Geoscience
Life Science
Physical Science
Material Type:
Activity/Lab
Data Set
Diagram/Illustration
Lecture Notes
Provider:
Concord Consortium
Provider Set:
Concord Consortium Collection
Author:
The Concord Consortium
Date Added:
01/13/2012