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  • Film Guides: The Origin of Species: The Beak of the Finch

    Film Guides: The Origin of Species: The Beak of the Finch

    Film Guides

    The following classroom-ready resources complement The Origin of Species: The Beak of the Finch. By following four decades of research on the finches of the Galápagos islands, the film illustrates how geography and ecology can drive the evolution of new species.

  • Lactose Intolerance: Fact or Fiction

    Lactose Intolerance: Fact or Fiction

    Lessons

    Students evaluate and discuss several statements about lactose intolerance and evolution before and after watching the film. Also available in Spanish.

  • The Origin of Species: Lizards in an Evolutionary Tree

    The Origin of Species: Lizards in an Evolutionary Tree

    Short Films

    (17 min 45 sec) In the Caribbean islands, adaptation to several common habitats has led to a large adaptive radiation with interesting examples of convergent evolution. Also available in Spanish.

  • The Origin of Species: The Beak of the Finch

    The Origin of Species: The Beak of the Finch

    Short Films

    (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.

  • Lactose Digestion in Infants

    Lactose Digestion in Infants

    Animations

    (53 sec) The lactase enzyme is produced in the small intestine of infants. It digests lactose by breaking it into glucose and galactose.

  • Diet and the Evolution of Salivary Amylase

    Diet and the Evolution of Salivary Amylase

    Lessons

    Students explore the effects of different diets on the evolution of an enzyme that breaks down starch. Also available in Spanish.

  • 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.

  • Film Guides: The Birth and Death of Genes

    Film Guides: The Birth and Death of Genes

    Film Guides

    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.

  • Molecular Genetics of Color Mutations in Rock Pocket Mice

    Molecular Genetics of Color Mutations in Rock Pocket Mice

    Lessons

    A lesson that requires students to transcribe and translate portions of the wild-type and mutant rock pocket mouse Mc1r genes and compare sequences to identify the locations and types of mutations responsible for the coat color variation described in the film. Also available in Spanish.

  • Battling Vector-Borne Diseases: Factors That Affect the Mosquito Life Cycle

    Battling Vector-Borne Diseases: Factors That Affect the Mosquito Life Cycle

    Labs & Demos

    In this activity, students rear mosquitoes in chambers and test variables that might affect the life cycle of the mosquito. Resources are also available in Spanish.

  • The Mosquito Life Cycle Activity

    The Mosquito Life Cycle Activity

    Lessons

    Students breed and observe mosquitoes in order to study their life cycle and demonstrate the utility of this data for public policy. Resources are also available in Spanish.

  • Motor cabal toxins block motor neuron synapses

    Motor cabal toxins block motor neuron synapses

    Animations

    (3 min 28 sec) Multiple cone snail toxins attack different molecules of the nervous system and cause paralysis.

  • Prialt blocks motor synapse in fish

    Prialt blocks motor synapse in fish

    Animations

    (2 min 31 sec) Prialt, a drug derived from cone snail venom, paralyzes fish by blocking calcium channels at a motor synapse.

  • Molecular Mechanism of Synaptic Function

    Molecular Mechanism of Synaptic Function

    Animations

    (1 min 9 sec) Electrical and chemical signals are used by neurons to communicate with one another at contact points called synapses. Also available in Spanish.

  • Signal molecules trigger transcription factors

    Signal molecules trigger transcription factors

    Animations

    (2 min 4 sec) Varying concentrations of a signaling molecule activate different transcription factors and determine cell fate.

  • Cells of the Immune System

    Cells of the Immune System

    Click & Learn

    An overview of the immune system, concentrating on the roles played by B and T lymphocytes, and the antigen-presentation system.

  • CTL killing a target cell

    CTL killing a target cell

    Clips

    (1 min 17 sec) Video microscopy of a cytotoxic T lymphocyte in action.

  • Planarian Regeneration and Stem Cells

    Planarian Regeneration and Stem Cells

    Scientists at Work

    (11 min 47 sec) A mini-documentary discussing the remarkable regenerative capabilities of the planarian, and how HHMI researcher Alejandro Sánchez Alvarado uses them to study the biology of stem cells.

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