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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. 

  • Dad Feathers

    Dad Feathers

    Image of the Week

    The male peafowl, or peacock, invests a lot in his appearance.

  • 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).

  • Super Stoma

    Super Stoma

    Image of the Week

    The stomata of grasses (singular stoma) function more efficiently than those of other plants.

  • Natural Selection in an Outbreak

    Natural Selection in an Outbreak

    Scientists at Work

    (7 min 29 sec) This video brings us to the front lines of the 2013–2015 Ebola outbreak in west Africa and explains how scientists monitored the evolution of the virus by analyzing its genome.

  • Middle School

    Middle School

    Collection

    A small selection of our multimedia resources that will enhance your teaching of middle school life and earth science classes. They include engaging, high-quality animation, hands-on activities,...

  • 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.

  • Selection for Tuskless Elephants

    Selection for Tuskless Elephants

    Scientists at Work

    (6 min 39 sec) Working in Gorongosa National Park, Mozambique, Dr. Joyce Poole and colleagues made a striking observation: many female elephants lack tusks.

  • 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.

  • The Making of the Fittest

    The Making of the Fittest

    Collection

    Each film takes students on an adventure—from the postglacial lakes in southern Alaska to the deserts of the American Southwest, and from the icy Antarctic to the highlands of East Africa,...

  • Beak of the Finch Film With Quiz

    Beak of the Finch Film With Quiz

    Interactive Video

    (15 min 54 sec) Embedded quiz modules test students’ understanding as they watch a short film on the evolution of the finch species found on the Galápagos Islands.

  • 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.  

  • Pocket Mouse Film With Quiz

    Pocket Mouse Film With Quiz

    Interactive Video

    (10 min 29 sec) Embedded quiz modules test students’ understanding as they watch the short film on the rock pocket mouse—a living example of Darwin’s process of natural selection. Also available in Spanish.

  • 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.

  • The Origin of Species: The Beak of the Finch

    The Origin of Species: The Beak of the Finch

    Short Film

    (15 min 54 sec) Four decades of research on finch species that live only on the Galápagos Islands illuminate how species form and multiply. Also available in Spanish.

  • Teacher Guide: Evolution

    Teacher Guide: Evolution

    Teacher Guide

    Topics include: natural selection, artificial selection, population genetics, human adaptations and evolution, and phylogenetics.

  • The Making of the Fittest: Natural Selection and Adaptation

    The Making of the Fittest: Natural Selection and Adaptation

    Short Film

    (10 min 25 sec) The rock pocket mouse is a living example of Darwin’s process of natural selection. Also available in Spanish.

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