199 | The Land Before the Land Before Time

from GradCast · host Maris Schneider, Anthony Cruz, Mark Ambrogio, Scott Walters, Ryan Baxter, Maria Khan, Garth Casbourn, Riya Sidhu, Sarah Bidinosti, Chrishma Perera, Bruno Mesquita, Kirstyn Seanor, Mohammed Zeratti

What did the landscape of Ontario look like over two billion years ago? The answer is hidden in the rocks. On this episode, geologist Carolyn Hill (PhD Candidate in the Department of Earth Sciences) tells hosts Yimin and Greg why the Pre-Cambrian may not be the nicest place for time travellers to visit. Plus, we learn about how oxygen once almost killed off life on Earth! Hosts: Yimin Chen & Gregory Robinson Produced by Chantal Lemire

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This episode is 28 minutes long.

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This episode was published on January 29, 2019.

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