About a third of the way, listen to the change that occurs after a forest is logged selectively under the guise of responsible ecological practices promoted by Logging Companies. The sounds never recover. [video]https://www.ted.com/talks/bernie_krause_the_voice_of_the_natural_world.html? utm_source=newsletter_weekly_2013-07-20&utm_campaign=newsletter_weekly&utm_medium=email &utm_content=talk_of_the_week_button[/video]