| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 3 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 4 | — |  | Ologies with Alie Ward | Alie Ward | |
| 5 | 1 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 6 | 1 |  | More or Less | BBC Radio 4 | |
| 7 | 1 | B | Boring History for Sleep | Velvet | |
| 8 | 3 |  | Curious Cases | BBC Radio 4 | |
| 9 | 3 |  | Discovery | BBC World Service | |
| 10 | 3 |  | Radiolab | WNYC Studios | |
| 11 | 3 | O | Our Changing World | RNZ | |
| 12 | 3 |  | Unexplainable | Vox | |
| 13 | 3 |  | All In The Mind | ABC | |
| 14 | 1 |  | Science Vs | Spotify Studios | |
| 15 | 24 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 16 | 24 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 17 | 14 |  | Cool Worlds Podcast | coolworldslab | |
| 18 | 14 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 19 | 4 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 20 | 1 |  | Science Weekly | The Guardian | |
| 21 | 5 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 22 | 16 |  | Wild Sounds: Kākāpō Files II | RNZ | |
| 23 | 8 |  | BBC Inside Science | BBC Radio 4 | |
| 24 | 19 |  | The Psychology Podcast | iHeartPodcasts | |
| 25 | 34 |  | Origin Stories | The Leakey Foundation | |
| 26 | 9 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 27 | 1 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 28 | 59 |  | The Common Descent Podcast | Common Descent | |
| 29 | 16 |  | Head Shepherd | Mark Ferguson | |
| 30 | 45 | D | Deep Dives With Sharks | Alex Humphreys | |
| 31 | 68 |  | The world, the universe and us | New Scientist | |
| 32 | 31 |  | Alive Again | iHeartPodcasts | |
| 33 | 14 |  | Blurry Creatures | Blurry Creatures | |
| 34 | 18 |  | Drilled | Pushkin Industries | |
| 35 | 14 | T | The myCOW Podcast | myCOW | |
| 36 | 18 |  | Babbage from The Economist | The Economist | |
| 37 | 156 |  | Outside/In | NHPR | |
| 38 | 16 | B | Because Why?! The Science and Society Pod. | Brianne West | |
| 39 | 110 |  | Naturebang | BBC Radio 4 | |
| 40 | 20 | D | DOC Sounds of Science Podcast | Department of Conservation | |
| 41 | 141 |  | Почему мы еще живы | libo/libo | |
| 42 | — | A | Anatomy On The Go | Seth Jump | |
| 43 | 18 |  | Rewilding the World with Ben Goldsmith | Ben Goldsmith | |
| 44 | — |  | What Remains | WRAL News | Raleigh, North Carolina | |
| 45 | — |  | Going Wild with Dr. Rae Wynn-Grant | PBS Nature | |
| 46 | — |  | Skeptics in the Pub Online Podcast | Skeptics in the Pub Online | |
| 47 | — |  | The Social-Engineer Podcast | Social-Engineer, LLC | |
| 48 | 24 |  | People Helping Nature Podcast | Conservation Amplified | |
| 49 | 12 | G | Goodfellow Unit | The Goodfellow Unit (University of Auckland) | |
| 50 | 21 | T | The Al & Juddy Show | Agricom | |
| 51 | 10 |  | The Science Show | ABC | |
| 52 | 24 |  | Clearer Thinking with Spencer Greenberg | Spencer Greenberg | |
| 53 | 18 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 54 | 27 |  | Need To Know | Bryce Zabel | |
| 55 | 25 |  | The Wild with Chris Morgan | KUOW News and Information | |
| 56 | 6 |  | The Life Scientific | BBC Radio 4 | |
| 57 | 11 |  | The Michael Shermer Show | Michael Shermer | |
| 58 | 25 |  | Terrible Lizards | Iszi Lawrence and David Hone | |
| 59 | 25 |  | Giant Leap with Taylor Wilson | Giant Leap | |
| 60 | 116 |  | 洪晃|晃然大悟 | 洪晃|晃然大悟 | |
| 61 | 13 |  | The Hamilton Morris Podcast | Hamilton Morris | |
| 62 | 26 | W | What The Duck?! | ABC | |
| 63 | 21 | F | Feed for Thought | Pioneer Brand Products NZ | |
| 64 | — |  | Decouple | Dr. Chris Keefer | |
| 65 | — |  | Cryptids Of The Corn | Cryptids of the Corn Podcast | |
| 66 | 25 | Q | Questions du soir : l'idée | France Culture | |
| 67 | 11 |  | CREOGs Over Coffee | CREOGs Over Coffee | |
| 68 | 22 |  | Overheard at National Geographic | National Geographic | |
| 69 | 25 |  | La Science, CQFD | France Culture | |
| 70 | 56 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 71 | 18 | S | Safe As Podcast | Ben Hutchinson | |
| 72 | — | N | New Books in Environmental Studies | Marshall Poe | |
| 73 | 26 |  | 5 Live Science Podcast | BBC Radio 5 Live | |
| 74 | 14 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 75 | — | 知 | 知識好好玩 | 鏡好聽 | |
| 76 | — | S | Science Facts & Fallacies | Cameron English | |
| 77 | 23 |  | Ask MIT Climate | MIT Climate Project | |
| 78 | 23 | B | Blue Zones: Revisited | Revisited | |
| 79 | 9 |  | CrowdScience | BBC World Service | |
| 80 | — |  | Mind & Life | Mind & Life Institute | |
| 81 | 31 |  | Manifold | Steve Hsu | |
| 82 | 31 | E | Echoes of Impact | AUT Media | |
| 83 | — | I | Interplanetary Podcast | Matthew Russell | |
| 84 | — | P | playing god? | Johns Hopkins Berman Institute of Bioethics | |
| 85 | — | A | A Window On SAHMRI | SAHMRI | |
| 86 | 29 | E | eXtemporanea sciencesound | eXtemporanea | |
| 87 | 23 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 88 | 19 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 89 | 15 |  | Skeptoid | Brian Dunning | |
| 90 | 24 |  | The Climate Question | BBC World Service | |
| 91 | 3 |  | Science In Action | BBC World Service | |
| 92 | 24 |  | Ancient Aliens | PodcastOne | |
| 93 | 8 |  | Speaking of Psychology | American Psychological Association | |
| 94 | 29 |  | Unknowns | OER Project | |
| 95 | 9 |  | The Plodcast | Our Media | |
| 96 | 29 |  | Chemistry For Your Life | Melissa and Jam, Bleav | |
| 97 | 17 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 98 | 27 | R | Rewilding In Action | Maureen Howard | |
| 99 | 18 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 100 | 1 |  | Your Brain On | Drs. Ayesha and Dean Sherzai | |
