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Eons
The Two Viruses That We’ve Had For Millions of Years
Season 3
Episode 7
There’s one kind of herpesvirus that’s specific to one species of primate, and each virus split off from the herpesvirus family tree when the primate split off from its own tree. But of course, humans are a special kind of primate.
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Around 300 million years ago sails were all the rage, but we're still not sure what they were for.
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During the Permian Period many tetrapods, or four-limbed vertebrates, took to life in the trees.
9:29
For millions of years after the Great Dying microbes ruled the Earth.
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Life begins to rebound after the destruction of the mass extinction ending the Permian Period.
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An apocalypse ended the Permian Period 252 million years ago, wiping out more than 80% of species.
25:37
The first saber-teeth and tusks evolve in the Late Permian and our ancestors, the cynodonts, appear.
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An extinction in the Middle Permian decimates life, from a fossil reef to our ancient relatives.
25:37
The first herbivorous vertebrates evolve on the side of the amniote family tree leading to mammals.
25:37
Seed plants and amniotes adapt to dry climates, helping them thrive on Pangea in the Permian Period.
9:11
How did Homotherium evolve to be so successful? The answer may lie in the rise of the Tibetan plate.
10:16
The mystery of what non-flying dinosaurs were doing with their feathered wings has a new hypothesis.