A Brief History of Life, Part 1: The Archean and the Proterozoic
Published on Jul 13, 2016 SciShow
"It turns out life may have gotten its start pretty early in Earth's history, and while the first couple billion years saw several important developments, the period was still dominated by very simple life forms.
Hosted by: Michael Aranda"
A Brief History of Life, Part 2: The Paleozoic
Published on Jul 20, 2016 SciShow
"Right at the beginning of the Paleozoic, there was a huge explosion of more complex life. And that’s when things started to get really interesting.
Hosted by: Hank Green"
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