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The True Cost
Can Time Go Backwards
The Art of Germany: A Divided Land
The Mediterranean Sea
Project Nim
Magnificent Desolation Walking on the Moon
Michael Jackson Journey from Motown to Off the Wall
Homo Interneticus
How to Grow a Planet Life from Light
The Birth of Israel
Cosmos Carl Sagan: The Shores of the Cosmic Ocean
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The Buddha
The Virus of Faith
Man on Mars Mission to the Red Planet
Cave of Forgotten Dreams
Einsteins Nightmare
Clash of the Gods: Hades
Planet Earth II Deserts
Journey to the Edge of the Universe
Amazing Africa
How to Live Longer
The Worst Car in the History of the World
Caves
Charles Darwin and the Tree of Life
Stem Cell Universe with Stephen Hawking
Lord of Asia
Rivals
Addicted to Sexting
A Leap of Faith
Ice
In the Shadow of the Moon
David Attenborough Meets President Obama
The First Christianity

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One Voice in the Cosmic Fugue
One Voice in the Cosmic Fugue 1980

Sagan discusses the story of the Heike crab and artificial selection of crabs resembling samurai warriors, as an opening into a larger discussion of evolution through natural selection (and the pitfalls of intelligent design). Among the topics are the development of life on the Cosmic Calendar and the Cambrian explosion; the function of DNA in growth; genetic replication, repairs, and mutation; the common biochemistry of terrestrial organisms; the creation of the molecules of life in the Miller-Urey experiment; and speculation on alien life (such as life in Jupiter's clouds). In the Cosmos Update ten years later, Sagan remarks on RNA also controlling chemical reactions and reproducing itself and the different roles of comets (potentially carrying organic molecules or causing the Cretaceous–Paleogene extinction event).

Category:Science  Duration:01:00:00   Series: Cosmos

 
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