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  1. Scientists detect chirping cosmic waves in an ... - Associated Press News

  2. Scientists detect mysterious 'bird calls' in an unexpected part of …

  3. Chirping chorus rings out from an unexpected part of outer space - Nature

  4. Nature sounds are declining, being replaced by human noise - Earth

  5. Can we save the quietest places in the world? | On Point - WBUR

  6. Experts warn that world faces ‘deathly silence’ of nature as ... - MSN

  7. Studying Nature's Rhythms: Soundscape Scientists Spawn New Field

  8. Rail firm launches free nature soundscapes series for commuters - BBC

  9. U.N. launches project combining nature and music : NPR

  10. Sounds of nature News, Research and Analysis - The Conversation