Audio is streamed directly from the publisher (traffic.megaphone.fm) as published in their RSS feed. Play Podcasts does not host this file. Rights-holders can request removal through the copyright & takedown page.
Show Notes
What looked like human-made structures underwater off Greece turned out to be millions-of-years-old concretions deposited by bacteria.
Learn more about your ad choices. Visit megaphone.fm/adchoices