| 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 | 2 |  | Outside/In | NHPR | |
| 6 | — |  | BirdNote Daily | BirdNote | |
| 7 | 2 |  | The Michael Shermer Show | Michael Shermer | |
| 8 | 1 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 9 | 1 |  | Backwoods Bigfoot Stories | Backwoods Bigfoot Stories-Bigfoot Encounters | |
| 10 | 1 |  | The Common Descent Podcast | Common Descent | |
| 11 | 1 |  | In Defense of Plants Podcast | In Defense of Plants | |
| 12 | 1 |  | Real Ghost Stories Online | Real Ghost Stories Online | Paranormal, Supernatural & Horror Radio | |
| 13 | 4 |  | Crime Pays But Botany Doesn't | Tony Santore | |
| 14 | — |  | Paranormal Portal | Brent Thomas | |
| 15 | 5 |  | BrainStuff | iHeartPodcasts | |
| 16 | 3 |  | UFO Chronicles Podcast | Nik Hunter | |
| 17 | 2 |  | HOLOSKY PODCAST | Holosky Podcast | |
| 18 | 2 |  | Origin Stories | The Leakey Foundation | |
| 19 | 5 |  | Terrible Lizards | Iszi Lawrence and David Hone | |
| 20 | 2 |  | The Grave Talks | Haunted, Paranormal & Supernatural | Ghost Stores, Haunted, Paranormal & Supernatural Stories | |
| 21 | 13 |  | 6 Ranch Podcast | James Nash | |
| 22 | 2 |  | I Know Dino: The Big Dinosaur Podcast | I KNOW DINO, LLC | |
| 23 | 2 |  | Ask a Spaceman! | Paul M. Sutter | |
| 24 | 1 |  | Grazing Grass Podcast sharing Regenerative Ag Stories | Grazing Grass | |
| 25 | 48 |  | Manifold | Steve Hsu | |
| 26 | 8 |  | Science Stuff To Blow Your Mind | Podgo | |
| 27 | 2 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 28 | 10 |  | The Science of Everything Podcast | James Fodor | |
| 29 | 1 |  | Wild Turkey Science | Dr. Marcus Lashley & Dr. Will Gulsby | |
| 30 | 50 |  | Patient Zero | NHPR | |
| 31 | 4 |  | Robinson's Podcast | Robinson Erhardt | |
| 32 | 28 |  | Off-Nominal | Jake Robins, Anthony Colangelo | |
| 33 | 1 |  | Brain Inspired | Paul Middlebrooks | |
| 34 | 7 |  | Haunted America | Haunted America | |
| 35 | 2 |  | Main Engine Cut Off | Anthony Colangelo | |
| 36 | 9 |  | The Acres U.S.A. Podcast | Acres U.S.A.® | |
| 37 | 11 |  | Hillbilly Horror Stories Paranormal Podcast | Jerry Paulley | |
| 38 | 9 |  | Strange Animals Podcast | Katherine Shaw | |
| 39 | 3 |  | Farm Small Farm Smart | The Modern Grower Podcast Network | |
| 40 | 3 |  | MonsterTalk | Blake Smith | |
| 41 | 54 |  | In Research Of | William Blake Smith | |
| 42 | 3 |  | Cryptid Creatures | Brian Brock/Todd Stevens | |
| 43 | 1 | T | The Humble Hoof | Alicia Harlov | |
| 44 | 8 |  | How Wild | NPR | |
| 45 | 15 |  | ExtinctZoo | ExtinctZoo | |
| 46 | 6 |  | Daniel and Jorge Explain the Universe | iHeartPodcasts | |
| 47 | 4 |  | Eons: Surviving Deep Time | PBS | |
| 48 | 8 |  | Paleo Nerds | paleonerds | |
| 49 | 13 | L | Laura Erickson's For the Birds | Laura Erickson | |
| 50 | 7 |  | Night Science | Itai Yanai & Martin Lercher | |
| 51 | 8 |  | Permaculture P.I.M.P.cast | Permaculture P.I.M.P.cast | |
| 52 | 86 | C | Curiosity Unbounded | Massachusetts Institute of Technology (MIT) | |
| 53 | 3 | T | The Immunology Podcast | The Immunology Podcast | |
| 54 | 1 | B | Bigfoot’s Wilderness Podcast | Bigfoot's Wilderness Podcast | |
| 55 | 24 |  | Where Is My Mind? | Mark Gober and Blue Duck Media | |
| 56 | 10 |  | Untold Radio Network | Untold Radio Network | |
| 57 | 10 |  | Weather Geeks | Weather Group Television | |
| 58 | 57 |  | Most Terrifying Places in America | Travel Channel | |
| 59 | 6 |  | Natural Resources University | Collaboration of land-grant universities | |
| 60 | 21 |  | Alien Encounters | Science Channel | |
| 61 | 4 |  | Ken Cook Is Having Another Episode | EWG | |
| 62 | 45 | C | Cannabis Cultivation and Science Podcast | Tad Hussey | |
| 63 | 38 | E | Evolution Talk | Rick Coste | |
| 64 | 77 | 原 | 原来是这样 Dscience | 原来是这样 Dscience | |
| 65 | 81 | F | Food Safety Matters | Food Safety Magazine | |
| 66 | 17 |  | Talk Nerdy with Cara Santa Maria | Cara Santa Maria | |
| 67 | 69 | T | The Genetics Podcast | Sano Genetics | |
| 68 | 4 |  | Ask Us Anything by Popular Science | Popular Science | |
| 69 | 29 | A | AVEAM — Kent Hovind Official YouTube Podcast | Unknown | |
| 70 | 15 | T | The Field Guides | The Field Guides | |
| 71 | 119 | W | Walkabout the Galaxy | Joshua Colwell, Adrienne Dove, and James Cooney | |
| 72 | 14 |  | The Numberphile Podcast | Brady Haran | |
| 73 | 39 |  | Infectious Disease Puscast | Vincent Racaniello | |
| 74 | 61 | T | The Bigfoot Report | Paranormal World Productions | |
| 75 | 21 | T | The Gestalt Gardener | MPB Think Radio | |
| 76 | 6 |  | The Science Show | ABC | |
| 77 | 10 | B | Brainforest Café | McKenna Academy of Natural Philosophy | |
| 78 | 105 | C | Cincinnati Zoo Tales | cincinnatizoo | |
| 79 | 18 | 佐 | 佐々木亮の宇宙ばなし | 佐々木亮 | |
| 80 | 76 | A | America Adapts the Climate Change Podcast | Doug Parsons | |
| 81 | 40 | T | This Week in Evolution | Vincent Racaniello | |
| 82 | 18 | A | AnthroBiology Podcast | Gaby Lapera | |
| 83 | 20 | 天 | 天方烨谈 | 基因频道 | |
| 84 | 65 |  | Science unscripted | DW | |
| 85 | 103 | S | Solar Maverick Podcast | Benoy Thanjan | |
| 86 | — | T | Timber University | Dr. Brady Self & Dr. Shaun Tanger | |
| 87 | 39 | T | Tinfoil Tales | Brandon Wright | |
| 88 | 49 | F | Farm Small Farm Smart Daily | The Modern Grower Podcast Network | |
| 89 | 23 | A | Aye-aye Pod | Duke Lemur Center | |
| 90 | 15 | S | SilviCast | Wisconsin Forestry Center and Wisconsin Department of Natural Resources | |
| 91 | 90 | W | What Is Life? | Carl Zimmer | |
| 92 | 102 | S | Sweet Talk: All Things Maple | Maple Program | |
| 93 | 49 | I | Inside NATURE on PBS | PBS Nature | |
| 94 | 17 | N | New Books in Science | New Books Network | |
| 95 | 16 | C | Climate Connections | Yale Center for Environmental Communication | |
| 96 | 73 |  | Juan on Juan | Juan on Juan Media, LLC. | |
| 97 | 62 | T | The Stem Cell Podcast | The Stem Cell Podcast | |
| 98 | 37 | I | Inquiries of our Reality with Shayn Jones | Bizarre Reality Media | |
| 99 | 7 | S | Sea to Trees | National Park Service | |
| 100 | 6 | P | Palaeocast | Palaeocast | |
