Engines Podcast Engines of Our Ingenuity 1431: DogsEpisode: 1431 In which dogs humanize us. Today, some sidelights on the history of dogs. Dr. John Lienhard | Posted on November 24, 2017, 12:01 AM Episode: 1431 In which dogs humanize us. Today, some sidelights on the history of dogs. / To embed this piece of audio in your site, please use this code: <iframe src="https://embed.hpm.io/251064/251063" style="height: 115px; width: 100%;"></iframe> X Share