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Found 6 resources for the concept: Natural selection may favor individuals with one extreme value for a trait, shifting the average value of that trait in one direction over the course of many generations

imageEvo in the news: Gender-biased bacteria throw off an evolutionary balance
The percentage of southwestern whiteflies infected with Rickettsia bacteria has skyrocketed; but this is not a boon for local farmers, as the bacterium actively helps the pest spread. This news brief examines how evolutionary theory accounts for this and how we might turn it in our favor.

Audience: 13-16

Source: UC Museum of Paleontology

Resource type: Evo in the News article

imageThe Making of the Fittest: Natural Selection and Adaption
This 10-minute film describes the research of Dr. Michael Nachman and colleagues, whose work in the field and in the lab has documented and quantified physical and genetic evolutionary changes in rock pocket mouse populations.

Audience: 13-16

Source: Howard Hughes Medical Institute

Resource type: Video

imageSelection and evolution with a deck of cards
This classroom exercise introduces the concept of evolution by natural selection in a hypothesis-driven, experimental fashion, using a deck of cards.

Audience: 13-16

Source: Evolution: Education and Outreach

Resource type: Classroom activity

imageInducing Evolution in Bean Beetles
In this lab, students design and conduct experiments to evaluate whether evolution by natural selection (or alternatively, genetic drift) may be induced in laboratory populations.

Audience: 13-16

Source: Morehouse College and Emory University

Resource type: Lab activity

imageProblem-based discussion: Natural selection in Darwin's finches
This set of two PowerPoint slides featuring questions for problem-based discussion (i.e., open-ended questions that engage students with each other and with course material) can be easily incorporated into lectures on natural selection.

Audience: 13-16

Source: UC Museum of Paleontology

Resource type: Slide set

imageEvo in the News: Acidic oceans prompt evolution
This news brief, from October 2012, describes new research into the evolutionary response that ocean acidification may prompt in some plankton species.

Audience: 13-16

Source: UC Museum of Paleontology

Resource type: Evo in the News article

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