Doctor Who Subtly Gives The Zygons A Happy Ending After Their Last Appearance In Peter Capaldi's Era

Warning: Spoilers ahead for Doctor Who season 15, episode 6, "The Interstellar Song Contest."Doctor Who season 15, episode 6, "The Interstellar Song Contest," isn't about the Zygons, but it does include a brief reference to the shapeshifting species that quietly ties up a loose end from Peter Capaldi's era as the Twelfth Doctor. Originating in Doctor Who's classic era, the Zygons returned during Steven Moffat's time as showrunner, but they were left in a precarious position as they had to blend in with humanity to live their lives. Now, it appears that this is no longer the case.