Comedian and fellow desert-dweller Caitlin Gill (@robotcaitlin) joins Matt, Jesse and Andy to discuss Mt. Etna growing 100 feet, 9,000 Covid cases from Euro 2020 games and ants using soil physics to excavate tunnels that last decades.

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Jesse returns to the show to help welcome David B. Lyons (@david_b_lyons), a podcaster and film location manager who not only co-created Yacht Rock but also has the inside scoop on Norbit and why Eddie Murphy loves fat suits. David and the gang also discuss three volcanoes erupting simultaneously, curbing methane emissions, wandering mammoths, a T. Rex selling at auction, the crazy story behind the Twilight Zone movie and Matt's show Memory Hole on Roku.

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Comedian Nato Green (@natogreen) joins Andy and Matt to talk about his work as a labor organizer, his appearance in Sorry To Bother You, bird-eating centipedes, ancient trigonometry, cranking it to prevent prostate cancer and whales benefitting from covid.

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Comedian and writer Brian Kiley (@kileynoodles) joins Matt and Andy to discuss Andy's new injury, a very reasonable argument for getting vaccinated if you were on the fence about it, Australian cockatoos teaching each other to dumpster dive, a dancing cockatoo, how to bank your voice for others to use, Alex Trebek on Conan, a Russian module mishap on the ISS, Andy's obsession with Olympic swimming and the greatness of Caeleb Dressel, petrified wood and a sponge fossil that's almost a billion years old.

Comedian Sean Devlin joins Matt and Andy to talk about his new album Airports, Animals, magic eye posters and Brian May stereoscopy, failed flower making floral fractals, converting brain waves to speech, and dogs ignoring liars and helping out in courtrooms.

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Jordan Morris (@Jordan_Morris) and Sarah Morgan (@sarahlmorgan) return to the podcast to celebrate the release of their new graphic novel Bubble and talk about fish brains that grow when they think, bendy ice, Richard Branson kind of going to space and extreme temps in Siberia.

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Comedian and podcast host Justin Decloux (@DeclouxJ) joins Matt and Andy to discuss how Tasmanian devils get their face cancer, the benefits of mixing vaccines, the dragon man who isn't much of a dragon, figuring out when the first stars shone, and using CRISPR to treat a genetic disease. and Andy's latest writing project, Season 2 of Could You Survive The Movies?

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Comedian Atsuko Okatsuka (@AtsukoComedy) joins Andy and Matt to discuss Andy's summer of pyromania, a hiccup-curing doohicky, a newly discovered plant organ, that $24 million book on Amazon, Tasmanian devils eating too many penguins, Benedict Cumberbatch's penglings, ineffective spider makeup and Atsuko's latest album But I Control Me.

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Writer/performer J. Elvis Weinstein (@JElvisWeinstein) joins Matt and Andy to talk about being in the original cast of Mystery Science Theater 3000, figuring out which of the echidna's numerous penises get erect, invasive species hitching rides on ocean litter, Australia's largest dinosaur, pupil size as an intelligence marker, first views of a giant moon rocket, the anonymous rich person hitching a brief ride into kind-of space with Bezos and Matt's upcoming live shows in Fort Collins and Boulder, Colorado.

Comedian and novelist Caimh McDonnell (@Caimh) joins Matt and Andy to talk about his new book The Stranger Times, a Trojan Horse method to fight cancer, the cast of Friends doing a Windows 95 promo, laser-based communication for the next lunar mission and tossing a frisbee to a dog on the moon.