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  • Sodium Channel Evolution in Electric Fish

    Sodium Channel Evolution in Electric Fish

    Data Points

    Scientists investigated how gene duplication contributed to the evolution of electric fish.

  • Pelvic Evolution in Sticklebacks

    Pelvic Evolution in Sticklebacks

    Data Points

    Scientists used SNP genotyping in populations of freshwater stickleback fish to determine the genetic mutations responsible for the impaired development of pelvises and spines.

  • Origins of Antibiotic Resistance

    Origins of Antibiotic Resistance

    Data Points

    Scientists collected bacteria from locations that had never been exposed to humans or modern antibiotics to determine if antibiotic resistance is newly evolved since the introduction of antibiotics or has evolved independently.

  • Mimicry in a Diverse Community of Arthropods

    Mimicry in a Diverse Community of Arthropods

    Data Points

    Researchers exposed arthropod mimics that use a golden patch to warn of unpalatability to predators with different prey preferences to determine how effective their warnings were.

  • 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.

  • The Origin of Flight: What Use Is Half a Wing?

    The Origin of Flight: What Use Is Half a Wing?

    Scientists at Work

    (8 min 16 sec) Biologist Ken Dial's study of how young birds use their developing wings sheds light on the evolution of flight in birds.

  • Natural Selection and the Evolution of Darwin's Finches

    Natural Selection and the Evolution of Darwin's Finches

    Card Activities

    In this activity, students develop arguments for the adaptation and natural selection of Darwin’s finches. Students use two key NGSS science and engineering practices: 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 Points

    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.

  • Milk: How Sweet Is It?

    Milk: How Sweet Is It?

    Labs & Demos

    In this activity, students simulate a lactose tolerance test, similar to the one shown in the short film The Making of the Fittest: Got Lactase? The Co-evolution of Genes and Culture, to determine which samples contain the lactase enzyme.

  • Lactose Intolerance: Fact or Fiction

    Lactose Intolerance: Fact or Fiction

    Lessons

    In this activity, students evaluate and discuss statements about the evolutionary relationship between milk consumption and lactose tolerance discussed in the short film Making of the Fittest: Got Lactase? The Co-evolution of Genes and Culture.

  • Weighing the Evidence for a Mass Extinction—On Land

    Weighing the Evidence for a Mass Extinction—On Land

    Lessons

    A lesson in which students analyze graphs and data on pollen grains and fern spores to form a picture of the living landscape before and after the K-T mass extinction.

  • Weighing the Evidence for a Mass Extinction: In the Ocean

    Weighing the Evidence for a Mass Extinction: In the Ocean

    Card Activities

    This activity supports concepts covered in the short film The Day the Mesozoic Died by replicating observations and measurements made by researchers of fossilized protists, called foraminifera (or forams), below and above the K-T boundary.

  • How Novel Icefish Genes Can Improve Human Health

    How Novel Icefish Genes Can Improve Human Health

    Lessons

    A lesson that requires students to read detailed scientific passages and explain how an understanding of specific icefish adaptations might lead to a treatment or cure for human disorders, such as osteoporosis and anemia. 

  • Icefish Blood Adaptations: Viscosity

    Icefish Blood Adaptations: Viscosity

    Lessons

    In this simple lab activity, students simulate and compare how blood pumps through the circulatory system of icefish and other fish.

  • Icefish Blood Adaptations: Antifreeze Proteins

    Icefish Blood Adaptations: Antifreeze Proteins

    Labs & Demos

    In this activity, students investigate the importance of antifreeze proteins for icefish survival through two simple labs.

  • Natural Selection and Evolution of Rock Pocket Mouse Populations

    Natural Selection and Evolution of Rock Pocket Mouse Populations

    Lessons

    An activity in which students analyze amino acid data and draw conclusions about the evolution of coat color phenotypes in different rock pocket mouse populations.

  • Biochemistry and Cell Signaling Pathway of the Mc1r Gene

    Biochemistry and Cell Signaling Pathway of the Mc1r Gene

    Lessons

    An advanced lesson that requires students to analyze partial DNA sequences of the Mc1r gene and identify the effects of mutations on the MC1R protein pathway.

  • Molecular Genetics of Color Mutations in Rock Pocket Mice

    Molecular Genetics of Color Mutations in Rock Pocket Mice

    Lessons

    In these activities, students transcribe and translate portions of the rock pocket mouse Mc1r gene to further explore the genetic variations responsible for different coat colors as described in the short film Making of the Fittest: Natural Selection and Adaptation.

  • Color Variation Over Time in Rock Pocket Mouse Populations

    Color Variation Over Time in Rock Pocket Mouse Populations

    Card Activities

    This activity allows students to collect and analyze data on the evolution of coat color in rock pocket mouse populations living on differently colored substrates.

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