| 1 | — |  | Ologies with Alie Ward | Alie Ward | |
| 5 | 1 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 6 | 1 |  | Unexplainable | Vox | |
| 9 | 4 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 10 | 8 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 10 | 6 |  | Making Sense with Sam Harris | Sam Harris | |
| 12 | 1 |  | BBC Inside Science | BBC Radio 4 | |
| 12 | — | C | Crime Theories: Off the Record | Karen Armenta | |
| 13 | 31 | W | Wildest Kruger Stories | Karolina Norée | |
| 14 | 1 |  | Blurry Creatures | Blurry Creatures | |
| 14 | 1 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 14 | 5 |  | The Michael Shermer Show | Michael Shermer | |
| 17 | 12 |  | Overheard at National Geographic | National Geographic | |
| 19 | 4 | T | The Birding Life Podcast Network | The Birding Life Podcast Network | |
| 19 | 6 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 21 | 2 |  | CrowdScience | BBC World Service | |
| 22 | 4 |  | Science Friday | Science Friday and WNYC Studios | |
| 25 | 28 |  | Let's Learn Everything! | Maximum Fun | |
| 26 | 10 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 27 | 3 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 30 | 11 | T | THRIVING MINDS PODCAST | Professor Selena Bartlett, Neuroscientist, Brain Health is Everyone's Business | |
| 31 | — |  | Unexpected Elements | BBC World Service | |
| 32 | 2 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 34 | 8 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 34 | 56 | T | The Deep-Sea Podcast | Thomas Linley | |
| 35 | 8 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 35 | — | W | What if you just leave it? Rewilding unwrapped | Sam Rose | |
| 36 | 99 |  | The Science of Everything Podcast | James Fodor | |
| 36 | 10 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 36 | 4 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 37 | 7 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 38 | 8 |  | The Life Scientific | BBC Radio 4 | |
| 39 | 88 |  | Speaking of Psychology | American Psychological Association | |
| 39 | — |  | The Common Descent Podcast | Common Descent | |
| 40 | 12 |  | That UFO Podcast | That UFO Podcast | |
| 41 | 26 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 41 | 6 |  | Universe Today Podcast | Fraser Cain | |
| 42 | 29 |  | All In The Mind | ABC | |
| 42 | 2 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 44 | 4 |  | The Wild with Chris Morgan | KUOW News and Information | |
| 44 | 18 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 45 | 11 |  | New Books in Psychoanalysis | Marshall Poe | |
| 45 | 1 |  | A Voyage to Antarctica | UKAHT | |
| 46 | 13 |  | Living Planet | DW | |
| 46 | 21 |  | This Week in Virology | Vincent Racaniello | |
| 47 | — | N | Nature is Gay | Camryn Martin | |
| 47 | — |  | Songs 4 FRCR: Radiology FRCR 2A Revision | FRCR Revision | |
| 47 | 1 |  | Discovery | BBC World Service | |
| 48 | 3 |  | CREOGs Over Coffee | CREOGs Over Coffee | |
| 49 | 9 | G | Guardians of the River | Wild Bird Trust, NGOWP, House of Pod | |
| 50 | 21 | W | World of Sharks | Save Our Seas Foundation | |
| 51 | — | F | FertiliPod: Reproductive Medicine and Fertility Podcast for Assisted Reproduction Professionals | FertiliPod by IVIRMA | |
| 53 | 17 |  | Science Magazine Podcast | Science Magazine | |
| 54 | 7 |  | The Parkinson's Podcast | Davis Phinney Foundation | |
| 54 | 3 |  | You Are Not So Smart | You Are Not So Smart | |
| 56 | — |  | Short Wave | NPR | |
| 58 | 32 |  | Ancient Aliens | PodcastOne | |
| 59 | 71 |  | Drilled | Pushkin Industries | |
| 61 | 32 |  | Wild Times: Wildlife Education | Wildlife Educator - Forrest Galante | |
| 62 | 4 |  | Relebogile Mabotja hosts The Naked Scientist | Radio 702 | |
| 62 | 90 | T | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 63 | 25 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 68 | 13 | F | Farming With Nature | Mzansi Story Labs | |
| 68 | 31 |  | Naked Astronomy, from the Naked Scientists | The Naked Scientists | |
| 68 | 6 |  | A Life More Wild | Canopy & Stars | |
| 68 | 4 |  | Science Quickly | Scientific American | |
| 69 | 66 |  | The Micah Hanks Program | Micah Hanks | |
| 69 | 13 | M | MSF Farm Talk Podcast | Mallee Sustainable Farming | |
| 70 | 34 |  | The world, the universe and us | New Scientist | |
| 70 | 26 | C | Critically Speaking | Therese Markow | |
| 71 | 80 | F | Farming Today | BBC Radio 4 | |
| 73 | 13 | S | Safari Stories | Trunks and Tracks | |
| 73 | 50 |  | This Week in Space (Audio) | TWiT | |
| 74 | 14 |  | Origin Stories | The Leakey Foundation | |
| 76 | — |  | Bigfoot Eyewitness Radio | Vic Cundiff | |
| 77 | 3 |  | Ask a Spaceman! | Paul M. Sutter | |
| 79 | — |  | Outside/In | NHPR | |
| 83 | 17 |  | TheThinkingAtheist | The Thinking Atheist | |
| 83 | 56 | A | Ask the Naked Scientists | Dr Chris Smith | |
| 83 | 32 |  | The Quanta Podcast | Quanta Magazine | |
| 84 | 1 |  | Mysterious Radio: Paranormal, UFO and Lore Interviews | Podcast Audio House | |
| 86 | 28 | T | Tax Conversations Africa | Tax Justice Network Africa (TJNA) | |
| 87 | 44 |  | That's Just Wild | Fresh Air | |
| 88 | — | B | Beyond Jaws: Exploring Shark Science and Conservation | Speak Up For Blue | |
| 89 | — | S | Sharkpedia | Meghan Holst and Amani Webber-Schultz | |
| 91 | 35 |  | The Poultry Podcast Show | Wisenetix | |
| 92 | — |  | Mysterious Universe | 8th Kind | |
| 94 | 31 |  | Neuroscience: Amateur Hour | Neuroscience: Amateur Hour | |
| 96 | — |  | Stanford Psychology Podcast | Stanford Psychology | |
| 97 | 29 |  | Proxy with Yowei Shaw | Y3 Productions | |
| 97 | 42 |  | Breaking Math Podcast | Autumn Phaneuf & Noah Giansiracusa | |
| 98 | 26 |  | All Creatures Podcast | All Creatures Podcast | |
| 99 | — | L | Lifeworlds | Alexa Firmenich | |
| 99 | 14 |  | Rewilding the World with Ben Goldsmith | Ben Goldsmith | |
| 100 | 25 | L | Leopard Fortress (HD) | Earth Touch | |
| 101 | 25 |  | Flash Forward | Rose Eveleth | |
| 103 | 8 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 103 | 25 |  | Queens of Social Work | Queen P, LCSW & Queen H, LCSW | |
| 104 | 2 |  | The Science of Coffee | James Harper | |
| 104 | — | T | The Language Neuroscience Podcast | Stephen M. Wilson | |
