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
Whale ancestors probably never had teeth and baleen at the same time, and only developed baleen after trying toothlessness and sucking in prey.
Learn more about your ad choices. Visit megaphone.fm/adchoices