For tens of millions of years, North and South America were separate sisters across the sea, each with their own unique ecosystems. But around 3 million years ago, the Isthmus of Panama brought the landmasses together and kicked off an incredible mass migration of life between the continents. Some species thrived, others suffered, and in the end the very ecosystem structure of both continents was drastically altered, setting the stage for the American wildlife we know today.
In the news: prehistoric parasites, early turtle evolution, teeth through time, and a surprising hominin hybrid. Also, a devastating museum fire in Brazil.
Time markers:
Intro & Announcements: 00:00:00
News: 00:06:00
Main discussion, Part 1: 00:38:30
Main discussion, Part 2: 01:04:00
Patron question: 01:35:00
Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/
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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.
Muscial Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0
http://creativecommons.org/licenses/by/3.0/
Episode 137 - Fossilization
Episode 136 - Seahorses
Patron Mini-Episode Compilation #2
Episode 135 - Seeds
The Art of Common Descent with Rob Soto
Episode 134 – Sanguivores (Blood-Eaters)
Episode 133 - Symbiosis
Episode 132 - Mary and Louis Leakey
Episode 131 - Volcanoes
Episode 130 - Sense of Smell
End of the Year Q&A 2021
Episode 129 - Rhinos
Episode 128 - The Deep Sea
Silver Screen Science – Prologue, Jurassic World: Dominion
Episode 127 - The Hell Creek Formation
Episode 126 - Mimicry
Episode 125 - Orchids
Spook-E - Triffids
Spook-E - Mandrakes
Episode 124 - Snowball Earth
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