Evolution of the Anus

Chances are, you take the anus for granted -- at least so long as it’s behaving itself. Yet this fascinating anatomical feature has a deep evolutionary history and is itself a marvel of engineering. Join Robert and Joe for a look at this most marvelous alimentary portal. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.