Eons

The Huge Extinctions We Are Just Now Discovering

What graptolites tell us is a story of incredible changes in the ocean, of periods where the oceans became poisonous and suffocating before eventually clearing up again. They unlock extinctions and recoveries that scientists didn't see. And, most of all, they show us how unpredictable the Silurian period really could be.

The Huge Extinctions We Are Just Now Discovering

8m 58s

  • The Second Time Sponges Took Over The World: asset-mezzanine-16x9

    The Second Time Sponges Took Over The World

    S6 E20 - 8m 4s

    Researchers have discovered a piece of a weird, but critical, time in the deep past…a time when the first-ever mass extinction may have turned Planet Earth into Sponge World.

  • No Single Cradle of Humankind: asset-mezzanine-16x9

    No Single Cradle of Humankind

    S6 E19 - 10m 46s

    It would take decades for paleontologists to realize that maybe there wasn’t just one so-called "cradle of humankind," and realize that maybe they’d been asking the wrong question all along.

  • The Hazy Evolution of Cannabis: asset-mezzanine-16x9

    The Hazy Evolution of Cannabis

    S6 E18 - 10m 18s

    How did such a strange plant like cannabis come to be in the first place? When and where did we first domesticate it? And why oh why does it get us high?

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