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Season 1
The first life forms on the planet were microscopic.
The first life forms on the planet were microscopic.
A look at how aquatic life colonized landmasses.
A look at how aquatic life colonized landmasses.
It took a long time for vertebrates to take over land.
It took a long time for vertebrates to take over land.
The dinosaurs and their a long reign.
The dinosaurs and their a long reign.
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