Environmental Hypotheses: Oxygen and Glaciation

In this episode, we’re discussing the dramatic event that saw the rise of modern animal life and formed the foundation for all animal ecosystems – an event as fascinating as it is mysterious – the Cambrian Explosion!

In the news: brand new armored dinosaurs, a long-lost dino-baby, surprises from the human family tree, and snake fossils from our favorite fossil site!

Time markers:
Intro & Announcements: 00:00:00
News: 00:04:00
Main discussion: 00:37:30

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http://commondescentpodcast.wordpress.com/

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The Podcast music is “On the Origin of Species” by Protodome.
More music like this at http://ocremix.org.