An Earth covered in ice might sound far-fetched, but there’s reason to think it has actually happened in the past – more than once. In this episode, we examine the Snowball Earth hypothesis and the geologic evidence and climate models that back it up, as well as some of the major lingering questions: Just how snowy is the snowball? How could this start? How could it end? And how did life fare on a frozen planet?
In the news: ancient tardigrades, meat-eating sloths, shark communities, and relict mangroves.
Time markers:
Intro & Announcements: 00:00:00
News: 00:04:30
Main discussion, Part 1: 00:32:30
Main discussion, Part 2: 01:02:00
Patron question: 01:44:00
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The Intro and Outro music is “On the Origin of Species” by Protodome.
More music like this at http://ocremix.org.
Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0
http://creativecommons.org/licenses/by/3.0/
Spook-E - Animated Trees
Spook-E - People-Eating Plants
Episode 123 - Spiders
Episode 122 - Plate Tectonics
Episode 121 - Brains
Episode 120 – Tyrannosaurs
Episode 119 - India
Episode 118 - Trace Fossils
Episode 117 - Crabs and Carcinization
Episode 116 - Ichthyosaurs
Silver Screen Science - Anaconda (1997)
Silver Screen Science - Lake Placid (1999)
Episode 115 - Biomes
Episode 114 - Polar Life
Episode 113 - Paleoclimate
Episode 112 - Caves
Episode 111 - Eusociality
Silver Screen Science – Godzilla vs. Kong (2021)
Episode 110 - Mazon Creek Fossil Beds
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