When the Earth Started to Sing – David G. Haskell
Emergence Magazine Podcast
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Bird Song - The Evolution of Bird Song
The sound scape of the terrestrial world was dominated by a few insect voices, along with some frogs and perhaps reptiles. Bird song as we know it might not exist in modern bird song. Then we hear the evolutionary legacy of lucky escape from catastrophe, followed by innovation and renewalthe four flowering plants evolve.
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