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  • Developing an Explanation for Mouse Fur Color

    Developing an Explanation for Mouse Fur Color

    Activity

    Students collect and analyze evidence for each of the major conditions for evolution by natural selection to develop an explanation for how populations change over time. 

  • Who Am I?

    Who Am I?

    Image of the Week

    The caterpillar of the spicebush swallowtail butterfly (Papilio trollus) mimics the rough green snake (Opheodrys aestivus).

  • How Animals Use Sound to Communicate

    How Animals Use Sound to Communicate

    Click & Learn

    Using elephants, finches, bats, and moths, as case studies, explore different aspects of how animals use sound to communicate.

  • Moth Mimicry: Using Ultrasound to Avoid Bats

    Moth Mimicry: Using Ultrasound to Avoid Bats

    Scientists at Work

    (10 min 24 sec) This video follows scientists as they uncover the ways in which moth species in Gorongosa National Park use ultrasound to avoid being eaten by bats.

  • Human Skin Color: Evidence for Selection

    Human Skin Color: Evidence for Selection

    Activity

    This case study is based on the short film The Biology of Skin Color. Students use real data to propose hypotheses, make predictions, and justify claims with evidence. Also available in Spanish.

  • Natural Selection and the Evolution of Darwin's Finches

    Natural Selection and the Evolution of Darwin's Finches

    Activity

    This lesson is aligned with the NGSS science practices of engaging in argument from evidence using mathematical and computational thinking and analyzing and interpreting data.

  • Effects of Natural Selection on Finch Beak Size

    Effects of Natural Selection on Finch Beak Size

    Data Point

    Rosemary and Peter Grant studied the change in beak depths of finches on the island of Daphne Major in the Galápagos Islands after a drought.

  • Look Who's Coming for Dinner: Selection by Predation

    Look Who's Coming for Dinner: Selection by Predation

    Activity

    This activity supports the film The Origin of Species: Lizards in an Evolutionary Tree. Students are asked to formulate a hypothesis, and collect and analyze real research data to understand how quickly natural selection can act on specific traits in a population.  

  • Evolution in Action: Data Analysis

    Evolution in Action: Data Analysis

    Activity

    These two activities support the film The Origin of Species: The Beak of the Finch. They provide students with the opportunity to analyze data collected by Princeton University evolutionary biologists Peter and Rosemary Grant.

  • Population Genetics, Selection, and Evolution

    Population Genetics, Selection, and Evolution

    Activity

    A hands-on activity that uses simulations with beads to teach students about population genetics, the Hardy-Weinberg principle, and how natural selection alters the frequency distribution of heritable traits. Also available in Spanish.

  • Film Guides: The Birth and Death of Genes

    Film Guides: The Birth and Death of Genes

    Film Guide

    The following classroom-ready resources complement The Making of the Fittest: The Birth and Death of Genes, which describes how scientists have pieced together the evolutionary history of the Antarctic icefish. The icefish makes an excellent case study for genetic evolution as both the gain and loss of genes have led to key adaptations.

  • Allele and Phenotype Frequencies in Rock Pocket Mouse Populations

    Allele and Phenotype Frequencies in Rock Pocket Mouse Populations

    Activity

    A lesson that uses real rock pocket mouse data collected by Dr. Michael Nachman and his colleagues to illustrate the Hardy-Weinberg principle.

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