| 1 | — |  | Radiolab | WNYC Studios | |
| 2 | — |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 3 | — |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 4 | — |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 5 | — |  | The Michael Shermer Show | Michael Shermer | |
| 6 | — |  | BirdNote Daily | BirdNote | |
| 7 | 1 |  | Outside/In | NHPR | |
| 8 | 7 |  | Backwoods Bigfoot Stories | Backwoods Bigfoot Stories-Bigfoot Encounters | |
| 9 | 2 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 10 | 1 |  | BrainStuff | iHeartPodcasts | |
| 11 | 2 |  | The Common Descent Podcast | Common Descent | |
| 12 | 1 |  | In Defense of Plants Podcast | In Defense of Plants | |
| 13 | 3 |  | Real Ghost Stories Online | Real Ghost Stories Online | Paranormal, Supernatural & Horror Radio | |
| 14 | 4 |  | Paranormal Portal | Brent Thomas | |
| 15 | 3 |  | HOLOSKY PODCAST | Holosky Podcast | |
| 16 | 4 |  | Origin Stories | The Leakey Foundation | |
| 17 | 7 |  | Crime Pays But Botany Doesn't | Tony Santore | |
| 18 | 8 |  | Science Stuff To Blow Your Mind | Podgo | |
| 19 | 5 |  | UFO Chronicles Podcast | Nik Hunter | |
| 20 | 1 |  | I Know Dino: The Big Dinosaur Podcast | I KNOW DINO, LLC | |
| 21 | 4 |  | Ask a Spaceman! | Paul M. Sutter | |
| 22 | 4 |  | The Grave Talks | Haunted, Paranormal & Supernatural | Ghost Stores, Haunted, Paranormal & Supernatural Stories | |
| 23 | 5 |  | Grazing Grass Podcast sharing Regenerative Ag Stories | Grazing Grass | |
| 24 | 17 |  | Terrible Lizards | Iszi Lawrence and David Hone | |
| 25 | 4 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 26 | 7 |  | Hillbilly Horror Stories Paranormal Podcast | Jerry Paulley | |
| 27 | 30 |  | Haunted America | Haunted America | |
| 28 | 3 |  | Wild Turkey Science | Dr. Marcus Lashley & Dr. Will Gulsby | |
| 29 | 2 |  | Strange Animals Podcast | Katherine Shaw | |
| 30 | 2 |  | ExtinctZoo | ExtinctZoo | |
| 31 | 30 |  | Where Is My Mind? | Mark Gober and Blue Duck Media | |
| 32 | 23 |  | Brain Inspired | Paul Middlebrooks | |
| 33 | 10 |  | Main Engine Cut Off | Anthony Colangelo | |
| 34 | 2 |  | 6 Ranch Podcast | James Nash | |
| 35 | 4 |  | Robinson's Podcast | Robinson Erhardt | |
| 36 | 29 |  | How Wild | NPR | |
| 37 | 15 |  | MonsterTalk | Blake Smith | |
| 38 | 11 |  | The Science of Everything Podcast | James Fodor | |
| 39 | 9 |  | Cryptid Creatures | Brian Brock/Todd Stevens | |
| 40 | 31 |  | Paleo Nerds | paleonerds | |
| 41 | 72 | T | This Week in Evolution | Vincent Racaniello | |
| 42 | 5 |  | Farm Small Farm Smart | The Modern Grower Podcast Network | |
| 43 | 24 |  | Night Science | Itai Yanai & Martin Lercher | |
| 44 | 14 | T | The Humble Hoof | Alicia Harlov | |
| 45 | 16 |  | The Acres U.S.A. Podcast | Acres U.S.A.® | |
| 46 | 11 |  | Untold Radio Network | Untold Radio Network | |
| 47 | 9 |  | Weather Geeks | Weather Group Television | |
| 48 | 1 | T | Tinfoil Tales | Brandon Wright | |
| 49 | 15 |  | Talk Nerdy with Cara Santa Maria | Cara Santa Maria | |
| 50 | 30 | T | The Immunology Podcast | The Immunology Podcast | |
| 51 | 11 |  | Eons: Surviving Deep Time | PBS | |
| 52 | 8 |  | Daniel and Jorge Explain the Universe | iHeartPodcasts | |
| 53 | 11 | B | Bigfoot’s Wilderness Podcast | Bigfoot's Wilderness Podcast | |
| 54 | 51 | T | The Gestalt Gardener | MPB Think Radio | |
| 55 | 22 | T | The Field Guides | The Field Guides | |
| 56 | 99 | N | New Books in Environmental Studies | Marshall Poe | |
| 57 | 13 |  | Ken Cook Is Having Another Episode | EWG | |
| 58 | 10 |  | The Numberphile Podcast | Brady Haran | |
| 59 | 21 |  | Permaculture P.I.M.P.cast | Permaculture P.I.M.P.cast | |
| 60 | 17 |  | Off-Nominal | Jake Robins, Anthony Colangelo | |
| 61 | 71 | I | Inquiries of our Reality with Shayn Jones | Bizarre Reality Media | |
| 62 | 8 | L | Laura Erickson's For the Birds | Laura Erickson | |
| 63 | 41 | 天 | 天方烨谈 | 基因频道 | |
| 64 | — | T | Talkin' Cotton Podcast | University of Georgia's Cotton Team | |
| 64 | 67 | A | AnthroBiology Podcast | Gaby Lapera | |
| 65 | 20 |  | Natural Resources University | Collaboration of land-grant universities | |
| 66 | 22 |  | Homesteading and Permaculture by Paul Wheaton | paul wheaton | |
| 66 | — | A | Aye-aye Pod | Duke Lemur Center | |
| 67 | — | B | Brainforest Café | McKenna Academy of Natural Philosophy | |
| 68 | — | R | Reality Time | Robert Pavlis | |
| 69 | 10 | N | NASA ScienceCasts | NASA Science | |
| 70 | 19 |  | The Science Show | ABC | |
| 71 | 8 | W | What The Duck?! | ABC | |
| 72 | 24 |  | Ask Us Anything by Popular Science | Popular Science | |
| 73 | 13 |  | Manifold | Steve Hsu | |
| 74 | — | T | Tom Nelson | Thomas Nelson | |
| 75 | 15 | S | SilviCast | Wisconsin Forestry Center and Wisconsin Department of Natural Resources | |
| 76 | 122 | T | The Plant Report- Every Plant Has A Story | Jill Cloutier | |
| 77 | 43 | N | New Books in Science | New Books Network | |
| 78 | 19 |  | Good Fire | Amy Cardinal Christianson and Matthew Kristoff | |
| 79 | 101 | P | Project Botany | David Brooksby | |
| 80 | 5 |  | Patient Zero | NHPR | |
| 81 | 35 |  | Alien Encounters | Science Channel | |
| 82 | 84 | W | Whale Tales Podcast | Whale Tales | |
| 83 | 74 | S | Saving Salmon | Atlantic Salmon Federation | |
| 84 | 97 | S | Synapsen – ein Wissenschaftspodcast | NDR Info | |
| 85 | 80 | T | The Biology of Superheroes Podcast | Dr. Shane Campbell-Staton and Arien Darby | |
| 86 | 74 | F | Field, Lab, Earth | ASA, CSSA, SSSA | |
| 87 | 101 | D | Don't Panic Geocast | John Leeman and Shannon Dulin | |
| 88 | 1 | V | Viced Rhino: The Podcast | Viced Rhino | |
| 89 | 21 |  | SunCast | Nico Johnson | |
| 90 | 46 | T | The Vet Tech Cafe's Podcast | Vet Tech Cafe | |
| 91 | — | T | Trás los pasos de Santa Hildegarda de Bingen | JuanDiegoNetwork.com | |
| 92 | 32 | S | Sea to Trees | National Park Service | |
| 93 | 30 | M | Motivational Interviewing & Beyond | Joel Porter & Steve Rollnick | |
| 94 | 3 | P | Palaeocast | Palaeocast | |
| 95 | 33 |  | In Research Of | William Blake Smith | |
| 96 | 18 | S | So You Want to Be a Marine Biologist | K. G. Muzia | |
| 97 | 28 | 佐 | 佐々木亮の宇宙ばなし | 佐々木亮 | |
| 98 | — | A | AVEAM — Kent Hovind Official YouTube Podcast | Unknown | |
