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  • 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?

  • Humans, Biodiversity, and Habitat Loss

    Humans, Biodiversity, and Habitat Loss

    Science Talks

    (33 min 4 sec) Human activities and their effects on biodiversity in the past, present, and future.

  • Learning from Past Extinctions

    Learning from Past Extinctions

    Science Talks

    (29 min 6 sec) There is still time to avoid a sixth mass extinction.

  • Biodiversity in the Age of Humans

    Biodiversity in the Age of Humans

    Science Talks

    Are we witnessing a sixth mass extinction? What factors threaten ecosystems on land and in the sea? What are researchers doing to try to conserve biodiversity and ecosystems?