| 1 | — |  | Radiolab | WNYC Studios | |
| 2 | — |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 3 | — |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 4 | — |  | Ask a Spaceman! | Paul M. Sutter | |
| 5 | 2 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 6 | — |  | The Michael Shermer Show | Michael Shermer | |
| 6 | — |  | UFO Chronicles Podcast | Nik Hunter | |
| 7 | — |  | The Common Descent Podcast | Common Descent | |
| 9 | — |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 9 | 1 |  | Terrible Lizards | Iszi Lawrence and David Hone | |
| 11 | — |  | In Defense of Plants Podcast | In Defense of Plants | |
| 11 | 1 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 12 | — |  | Paranormal Portal | Brent Thomas | |
| 12 | 3 |  | The Numberphile Podcast | Brady Haran | |
| 13 | — |  | Real Ghost Stories Online | Real Ghost Stories Online | Paranormal, Supernatural & Horror Radio | |
| 14 | 1 |  | Backwoods Bigfoot Stories | Backwoods Bigfoot Stories-Bigfoot Encounters | |
| 16 | 48 |  | From The Shadows | Shane Grove | |
| 16 | 6 |  | The Science of Everything Podcast | James Fodor | |
| 17 | 3 |  | The Science Show | ABC | |
| 17 | 12 |  | The Grave Talks | Haunted, Paranormal & Supernatural | Ghost Stores, Haunted, Paranormal & Supernatural Stories | |
| 17 | 9 |  | Off-Nominal | Jake Robins, Anthony Colangelo | |
| 18 | 2 | T | Tom Nelson | Thomas Nelson | |
| 18 | — |  | MonsterTalk | Blake Smith | |
| 19 | — | M | Making Science with Tom Whipple | The Times | |
| 20 | 5 |  | I Know Dino: The Big Dinosaur Podcast | I KNOW DINO, LLC | |
| 20 | 76 |  | Manifold | Steve Hsu | |
| 21 | 3 |  | HOLOSKY PODCAST | Holosky Podcast | |
| 22 | 2 | B | Brain Matters | Brain Matters Neuroscience | |
| 22 | 3 | W | What The Duck?! | ABC | |
| 23 | 12 |  | Main Engine Cut Off | Anthony Colangelo | |
| 25 | 9 |  | Alien Encounters | Science Channel | |
| 25 | 1 |  | Outside/In | NHPR | |
| 26 | 3 | R | R2Kast - People in Food and Farming/All In | Wallace Currie | |
| 26 | 55 |  | Where Is My Mind? | Mark Gober and Blue Duck Media | |
| 26 | 4 |  | Eons: Surviving Deep Time | PBS | |
| 27 | 6 |  | Infectious Disease Puscast | Vincent Racaniello | |
| 28 | 4 | T | The Regenerative Agroforestry Podcast | Dimitri Tsitos & Etienne Compagnon | |
| 29 | 2 | S | Science(ish) | Auddy | |
| 30 | 7 | F | F.A.Z. Wissen | Frankfurter Allgemeine Zeitung | |
| 31 | — |  | Most Terrifying Places in America | Travel Channel | |
| 33 | 76 | N | New Books in Environmental Studies | Marshall Poe | |
| 33 | 52 |  | ExtinctZoo | ExtinctZoo | |
| 33 | — | P | Podcasts – Weird Things | Andrew Mayne | |
| 34 | 9 |  | Origin Stories | The Leakey Foundation | |
| 35 | 7 |  | BirdNote Daily | BirdNote | |
| 36 | 13 | O | Oxford Sparks Big Questions | Oxford Sparks | |
| 36 | 34 | T | The Immunology Podcast | The Immunology Podcast | |
| 37 | 5 |  | Robinson's Podcast | Robinson Erhardt | |
| 37 | 102 | Y | Your Complex Brain | Krembil Brain Institute | |
| 38 | 3 | Б | Буде тобі наука | Kunsht/Куншт | |
| 39 | — |  | Grazing Grass Podcast sharing Regenerative Ag Stories | Grazing Grass | |
| 39 | — | E | Earthwatch Podcast | Earthwatch Podcast | |
| 40 | — | N | New Species | New Species Podcast | |
| 40 | 12 | F | Facet Nation: A Gemmology Podcast | Facet Nation | |
| 42 | 9 | 台 | 台灣也旺 | 台灣野望自然傳播學社 | |
| 43 | 7 | T | The Orbital Mechanics Podcast | David Fourman, Ben Etherington, and Dennis Just | |
| 44 | 27 |  | BrainStuff | iHeartPodcasts | |
| 44 | 10 | 3 | 365 Days of Astronomy - Weekly Edition | Fraser Cain & Dr. Pamela L. Gay | |
| 45 | 42 |  | Paleo Nerds | paleonerds | |
| 45 | — |  | Haunted America | Haunted America | |
| 46 | 15 |  | Hillbilly Horror Stories Paranormal Podcast | Jerry Paulley | |
| 46 | 51 | N | NASA ScienceCasts | NASA Science | |
| 46 | — | G | GeekShow | 旭岽 | |
| 47 | 59 |  | Strange Animals Podcast | Katherine Shaw | |
| 50 | 16 |  | Brain Inspired | Paul Middlebrooks | |
| 50 | 16 | Z | ZSL Wild Science Podcast | Zoological Society of London | |
| 51 | 4 |  | Farm Small Farm Smart | The Modern Grower Podcast Network | |
| 51 | 16 |  | Untold Radio Network | Untold Radio Network | |
| 52 | 106 | R | Rätsel der Wissenschaft | DER STANDARD | |
| 53 | — | C | Counting the Earth | Counting the Earth | |
| 53 | 13 |  | Talk Nerdy with Cara Santa Maria | Cara Santa Maria | |
| 54 | 25 | V | Viced Rhino: The Podcast | Viced Rhino | |
| 55 | 2 | K | Kozmofizika | Dávid Gyula | |
| 55 | 22 |  | Patient Zero | NHPR | |
| 56 | 21 | W | Whale Tales Podcast | Whale Tales | |
| 56 | — | D | Die großen Fragen der Wissenschaft | detektor.fm – Das Podcast-Radio | |
| 57 | 20 | G | Green Corridors: Tune in to Nature | St Nicks | |
| 58 | 22 | B | BASIS Agronomy Matters | BASIS Registration | |
| 59 | 19 | W | Waterfall - Saving Water Podcast | CCW - The Consumer Council For Water | |
| 60 | 12 | T | The Bigfoot Report | Paranormal World Productions | |
| 61 | 17 | M | Mushroom Revival Podcast | Alex Dorr | |
| 62 | 19 | C | Clever Trees | Richard Uridge | |
| 63 | 24 | P | Palaeocast | Palaeocast | |
| 64 | 12 |  | In Research Of | William Blake Smith | |
| 65 | 24 | C | Chaser Chat | Chaser Chat | Weather | Storm Chasing | Tornado | |
| 67 | 37 | D | Die Großen Fragen in 10 Minuten | Mitteldeutscher Rundfunk | |
| 68 | 22 | Z | Zoo Logic | Dr. Grey Stafford | |
| 70 | 22 |  | Cryptid Creatures | Brian Brock/Todd Stevens | |
| 71 | — | C | Cannabis Cultivation and Science Podcast | Tad Hussey | |
| 72 | 25 |  | Crime Pays But Botany Doesn't | Tony Santore | |
| 73 | 19 | E | El Método | Luis Quevedo / CUONDA | |
| 75 | 19 | F | Fermentation Speaker Series | Elisa Caffrey, David Zilber, and Justin Sonnenburg | |
| 76 | 21 | T | The Behavioural Ecology and Evolution Podcast (the Beepcast) | noreply@blogger.com (Unknown) | |
| 77 | 40 | T | The Antarctic Sun Podcast | The Antarctic Sun | |
| 78 | 20 | A | AnthroBiology Podcast | Gaby Lapera | |
| 79 | 5 | T | The Genetics Podcast | Sano Genetics | |
| 80 | 8 | E | Eureka! | Stak | |
| 82 | 3 | T | The Stem Cell Podcast | The Stem Cell Podcast | |
| 83 | 21 | C | Curiosity Unbounded | Massachusetts Institute of Technology (MIT) | |
| 84 | 21 | T | The Naked Mole Rat | libo/libo | |
