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  • Animated Life: The Living Fossil Fish

    Animated Life: The Living Fossil Fish

    Animated Shorts

    (7 min 18 sec) This animated short film tells the engaging tale of the discovery of the coelacanth.

  • Animated Life

    Animated Life

    Collection

    These five short films, produced in conjunction with The New York Times, bring to life five historical scientific discoveries and the people behind them: Alfred Russel Wallace and his contribution to...

  • Mass Extinction: Life at the Brink

    Mass Extinction: Life at the Brink

    Feature Films

    Five times in Earth’s past, the vast majority of plant and animal species have been annihilated in a geologic instant. What triggered these dramatic events, and what might they tell us about the fate of our world?

  • Mesozoic Film with Quiz

    Mesozoic Film with Quiz

    Interactive Videos

    (33 min 43 sec) Embedded quiz modules test students’ understanding as they watch the short film on the asteroid that caused the extinction of the dinosaurs.

  • Animated Life: Pangea

    Animated Life: Pangea

    Animated Shorts

    (7 min 36 sec) The story of Alfred Wegener, who came up with the idea that continents once formed a single landmass and had drifted apart. Also available in Spanish.

  • Anthony Barnosky and Kaitlin Maguire Measure Mammal Extinctions at the John Day Fossil Beds

    Anthony Barnosky and Kaitlin Maguire Measure Mammal Extinctions at the John Day Fossil Beds

    Scientists at Work

    (9 min 15 sec) Prehistoric extinction rates are calculated from fossil data in a paleodatabase and compared to today’s extinction rate.

  • Finding the Crater

    Finding the Crater

    Activities

    This hands-on activity requires students to “visit” different K-T boundary sites.

  • The Day the Mesozoic Died

    The Day the Mesozoic Died

    Short Films

    (33 min 43 sec) The disappearance of the dinosaurs at the end of the Cretaceous period posed one of the greatest, long-standing scientific mysteries. This three-act film tells the story of the extraordinary detective work that solved it. Also available in Spanish.

  • EarthViewer Data Files

    EarthViewer Data Files

    Activities

    Summaries and links to the data files used to create the charts in EarthViewer, including the APK file to manually install the app.

  • How To Find a Dinosaur

    How To Find a Dinosaur

    Scientists at Work

    (4 min 5 sec) Dr. Lyson describes dinosaur digs as well as his focus on prehistoric turtle fossils.

  • Determining the Size and Energy of the K-T Asteroid

    Determining the Size and Energy of the K-T Asteroid

    Activities

    A lesson in which students calculate the mass, size, and kinetic energy of the K-T asteroid based on the total abundance of iridium in the K-T boundary layer.

  • Following the Trail of Evidence

    Following the Trail of Evidence

    Activities

    A worksheet in which students write down the evidence that led to the discovery that an asteroid struck Earth about 66 million years ago, causing a mass extinction. Also available in Spanish.

  • Calculating Iridium Fallout From an Asteroid Impact

    Calculating Iridium Fallout From an Asteroid Impact

    Activities

    A worksheet in which students calculate how much iridium was released, and eventually deposited all over the Earth, by the impact of the asteroid that caused the K-T extinction.

  • Article: The Day the Mesozoic Died

    Article: The Day the Mesozoic Died

    Readings

    A short article by Dr. Sean B. Carroll detailing the discoveries covered in the film The Day The Mesozoic Died.

  • Film Guides: The Day the Mesozoic Died

    Film Guides: The Day the Mesozoic Died

    Film Guides

    The following classroom-ready resources complement The Day the Mesozoic Died, which tells the story of the extraordinary detective work that led to the stunning discovery that an asteroid struck Earth 66 million years ago, triggering a mass extinction of animals, plants and even microorganisms.

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