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Found 26 resources for the concept: Natural selection acts on the variation that exists in a population

imageMechanisms of evolution
Learn about the basic processes that have shaped life and produced its amazing diversity.
This article is located within Evolution 101.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Tutorial

imageNatural selection: The basics
Darwin's most famous idea, natural selection, explains much of the diversity of life. Learn how it works, explore examples, and find out how to avoid misconceptions.
This article is located within Evolution 101.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Tutorial

imageOrigami Birds
Students build and evolve and modify paper-and-straw "birds" to simulate natural selection acting on random mutations.

Audience: 9-12

Source: ENSI

Resource type: Classroom activity

imageRelevance of evolution: Agriculture
Explore just a few of the many cases in which evolutionary theory helps us secure and improve the world's crops. Genetic diversity, disease resistance and pest control are highlighted.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Article

imageRelevance of evolution: Medicine
Explore just a few of the many cases in which evolutionary theory helps us understand and treat disease. Bacterial infections, HIV, and Huntington's disease are highlighted.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Article

imageEvolution and Antibiotic Resistance
Students learn why evolution is at the heart of a world health threat by investigating the increasing problem of antibiotic resistance in such menacing diseases as tuberculosis.

Audience: 9-12

Source: WGBH

Resource type: Classroom activity

imageEvo in the news: Coping with climate change
This news brief from May 2009 explores the difference between phenotypic plasticity and evolutionary change in relation to the media's coverage of climate change.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Evo in the News article

imageEvo in the News: "Error. Greed does not compute."
This news brief from May 2011 describes how researchers are using tiny robots to study the evolution of altruistic behaviors.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Evo in the News article

imageEvo in the news: Evolving altitude aptitude
This news brief from October 2010 examines new research that makes it clear that Tibetan highlanders have not just acclimated to their mountain home; evolutionary adaptations have equipped them with unique physiological mechanisms for dealing with low oxygen levels.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Evo in the News article

imageEvo in the news: Genetic variation helps rescue endangered panthers
In the 1990s, scientists predicted that the Florida panther would be extinct within 20 years and, in 1995, formulated a bold plan to save them. This news brief of December 2010 reports on the success of that plan which gave the panther a second lease on life by the infusion of genetic variation.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Evo in the News article

imageEvo in the news: Toxic river means rapid evolution for one fish species
This news brief from March 2011 examines the genetic basis for the evolution of resistance to PCBs in the Hudson River tomcod. Though this is great for the tomcod, what might it mean for other organisms in the ecosystem?

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Evo in the News article

imageClassification and Evolution
Students construct an evolutionary tree of imaginary animals (Caminalcules) to illustrate how modern classification schemes attempt to reflect evolutionary history.

Audience: 9-12

Source: Gendron, Robert

Resource type: Lab activity

imageAloha, spider style! The work of Rosemary Gillespie
This research profile follows Dr. Rosemary Gillespie to Hawaii as she evaluates hypotheses about the evolution of the colorful happy-face spider.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Research profile

imageBattling bacterial evolution: The work of Carl Bergstrom
This research profile examines how the scientist Carl Bergstrom uses computer modeling to understand and control the evolution of antibiotic resistant bacteria in hospitals.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Research profile

imageAngling for evolutionary answers: The work of David O. Conover
Human activity has certainly affected our physical environment - but it is also changing the course of evolution. This research profile follows scientist David O. Conover as he investigates the impact of our fishing practices on fish evolution and discovers what happened to the big ones that got away.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Research profile

imageThe genes that lie beneath: The work of Leslea Hlusko
Evolutionary biologist Leslea Hlusko's research takes her from the deserts of Ethiopia, where she hunts for hominid and primate fossils, to a baboon colony in San Antonio where she takes thousands of measurements of the primates' imposing canines. This research profile describes how the two projects are linked by a hunt for genetic variation, a key component of natural selection.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Research profile

imageUsing trees to understand plants: The work of Chelsea Specht
This research profile follows scientist Chelsea Specht as she pieces together the evolutionary history of tropical plants and their pollinators--and in the process, tries to figure out how to conserve endangered species.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Research profile

imageMantis shrimp shoulder their evolutionary baggage and bluff
Like all organisms, mantis shrimp carry baggage from their evolutionary history. Find out how this baggage has coaxed them into a deadly bluffing game.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Article

imageVariability and Selection in Natural Populations of Wood Lice
In this lab, students measure the amount of variation in a natural population of terrestrial wood lice and then determine which traits are subject to selection by predators by performing a simulated predation experiment.

Audience: 9-12

Source: Berkelhamer, Rudi

Resource type: Lab activity

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: 9-12

Source: Evolution: Education and Outreach

Resource type: Classroom activity

imageThe Making of the Fittest: Natural Selection in Humans
This 14-minute film describes the connection between the infectious parasitic disease malaria and the genetic disease sickle cell anemia - one of the best-understood examples of natural selection in humans.

Audience: 9-12

Source: Howard Hughes Medical Institute

Resource type: Video

imageEvo in the News: Climate change causes loss of genetic diversity
This news brief, from April 2012, describes how climate change is affecting a population of chipmunks in Yosemite National Park. The chipmunks' loss of genetic variation may affect their ability to survive and their future evolutionary potential.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Evo in the News article

imageClipbirds
Students learn about variation, reproductive isolation, natural selection, and adaptation through this version of the bird beak activity.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Classroom activity

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: 9-12

Source: Howard Hughes Medical Institute

Resource type: Video

imageThe Making of the Fittest: The Birth and Death of Genes
This 13-minute film describes how scientists have pieced together the evolutionary history of the Antarctic icefish by studying its genome — an excellent case study for genetic evolution as both the gain and loss of genes have led to key adaptations.

Audience: 9-12

Source: Howard Hughes Medical Institute

Resource type: Video

imageEvo in the news: Antibiotic resistant bacteria at the meat counter
This news brief from May 2013 describes research showing that a large percentage of the meat in supermarkets is contaminated with antibiotic resistant bacteria. An evolutionary perspective explains how antibiotic resistance arises in the first place and why the prevalence of resistant bugs in livestock has health professionals and scientists worried.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Evo in the News article

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