In this episode of Stranger Than podcast, Joanna tells us about the disappearance of Cindy Song, and Nate talks about the Silurian hypothesis and the Zodiac Killer’s identity. Enjoy! Stranger Than podcast is a part of the Age of Radio podcast syndicate. Check them out at ageofradio.org Stranger Than podcast logo art by Catthulu Art. Take a look at more pieces at https://www.facebook.com/CatThuluArt/ Stranger Than banner art by the very talented Anna   Episode artwork and research assistance by Sarah Stone If you enjoy Stranger Than podcast please consider becoming a patron: https://www.Patreon.com/strangerthanpodcast   Do you like Stranger Than podcast? Let us know! Check out our facebook page, facebook.com/strangerthanpodcast, our twitter @_StrangerThan, our Instagram @StrangerThanpodcast, or email us at StrangerThanPodcast@gmail.com. Join our Facebook group, The Strange Space   We are now also available on Spotify! Just type Stranger Than podcast into the search field   STRANGER THAN PODCAST HAS MERCH!!! THAT’S RIGHT! Check it out at https://www.teepublic.com/user/strangerthanpodcast  CHECK OUT OUR SHOW PAGE TOO!  Sources https://www.theatlantic.com/science/archive/2018/04/are-we-earths-only-civilization/557180/   https://nypost.com/2021/10/06/zodiac-killer-identified-linked-to-sixth-murder-cold-case-squad/ Learn more about your ad choices. Visit megaphone.fm/adchoices