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/
Patron Mini-Episode Compilation #4
Episode 179 - Thermoregulation
Episode 178 - Ears
Cute-E - Friendly Dragons
Episode 177 - Neanderthals
Spook-E - Turtle Dragons
Spook-E - Wyverns
Episode 176 - Hadrosaurs
Spook-E - East Asian Dragons
Spook-E - European Dragons
Episode 175 - Plant Defenses
Episode 174 - The Mesozoic Marine Revolution
Episode 173 - Herbivores (Plant-Eaters)
Silver Screen Science - 65 (2023)
Episode 172 - Toothed Whales
Episode 171 - The Tethys Sea
Episode 170 - Milk
Snake Stuff with David
Episode 169 - Sea Snakes
Episode 168 – Marine Crocs
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