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  • Thermoregulation in Dinosaurs

    Thermoregulation in Dinosaurs

    Data Points

    Grady and colleagues compared dinosaur fossil evidence with evidence from living animal species to shed more light on the type of thermoregulation that dinosaurs used—ectothermy, endothermy, or mesothermy.

  • Icefish Film with Quiz

    Icefish Film with Quiz

    Interactive Videos

    (13 min 14 sec) Embedded quiz modules test students’ understanding as they watch the short film on the icefish—an example of how genes are reused and recycled.

  • Vertebrate Circulatorium

    Vertebrate Circulatorium

    Click & Learn

    Compare and contrast the anatomy of the heart and the circulatory systems of major vertebrate groups and gain insights into their evolution.

  • The Making of the Fittest: The Birth and Death of Genes

    The Making of the Fittest: The Birth and Death of Genes

    Short Films

    (13 min 10 sec) 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.

  • How Novel Icefish Genes Can Improve Human Health

    How Novel Icefish Genes Can Improve Human Health

    Activities

    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. 

  • Ice Crystal Formation in Icefish and Non-Icefish Blood

    Ice Crystal Formation in Icefish and Non-Icefish Blood

    Activities

    A dramatic demonstration that simulates how tiny ice crystals would form and grow in the blood of most fish if they ventured into the icy waters of the Antarctic.

  • Demonstration: Viscosity of Icefish and Non-Icefish Blood

    Demonstration: Viscosity of Icefish and Non-Icefish Blood

    Activities

    A simple demonstration that uses readily-available materials to simulate how blood pumps through the circulatory system of icefish and other fish.

  • Icefish Adaptations

    Icefish Adaptations

    Activities

    A simple activity that investigates the importance of antifreeze proteins to icefish survival.

  • 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.

  • Zebrafish Heart Regeneration

    Zebrafish Heart Regeneration

    Animations

    (2 min 30 sec) The zebrafish heart is similar to the human heart in many respects. But unlike the human heart, the fish heart closes wounds rapidly and then regenerates to nearly full function. Fibroblast growth factor (FGF) is an important molecule in the regeneration process.

  • How a Heart Attack Occurs

    How a Heart Attack Occurs

    Animations

    (37 sec) A 3-D animation that shows how plaques form in a blood vessel, leading to blockage and a heart attack.

  • Sickle Cell Anemia

    Sickle Cell Anemia

    Animations

    (1 min) Sickle cell anemia is a genetic disease that affects hemoglobin.

  • Cardiology Virtual Lab

    Cardiology Virtual Lab

    Virtual Labs

    NEW! HTML 5 support added! This virtual lab will familiarize you with heritable diseases of the heart. Learn about the diagnostic tools used to examine and diagnose patients.

  • Kidney Function

    Kidney Function

    Clips

    (4 min 30 sec) Dr. Richard Lifton, along with student volunteers, uses an aquarium and salt to illustrate the amount of work the kidney performs each day to maintain proper levels of ions in the body.

  • Heart Function

    Heart Function

    Animations

    (33 sec) The job of the human heart—in fact of all vertebrate hearts—is to pump oxygenated blood throughout the cells of the body and to return deoxygenated blood to lungs or gills for replenishment.

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