Note: if the audio for this episode is the last episode, try downloading, deleting, and redownloading the episode, sorry about that! - Tom Why do leaves change color? No... like really? Like, show-me-the-scientific-literature-really? After all how mysterious could the answer be? And holy frick we're finally doing a topic on swearing!! What are the eras of swearing, and what is swearing actually good for?

Internet linguist Gretchen McCulloch of Lingthusiasm joins us to casually answer all of our pressing linguistics questions with the most mind blowing facts. Why does science use so much dang latin, and what is so unique about internet linguistics?

Cryptids may be spooky, but what about the spooky animals that turned out to be... real?? And what makes a good spooky story? Could it be something secretly... heartwarming??

For our birthday this year, we've each gifted a topic for one another! For Caroline, an environmental hot take: can invasive species ever be... good? For Tom, an entire topic about one of his favorite hobbies: rock climbing! And for Ella, interviews from the Ig Nobel Laureates this year.

What's actually going on in the center of the Earth, and just how interesting and useful could it be? And how did the now ubiquitous Planned Obsolescence start with... bicycles??

Longtime inspiration and friend of the show Hank Green joins us for a very special episode! How do colonial organisms with just one queen avoid incest? How many Ig Nobels have gone to sex science? Can the team figure out the identity of the Reverse Platypus? When was the first dick grafitti, and could the story actually be... wholesome???

It's an infamous pseudoscience, but what haven't we learned from the rise and fall of Phrenology? And Lego are ubiquitous, which means there's a lot to learn and a lot of nuance for our love of these stackable bricks.

While we're sending Tom "Well Wissage" and a speedy recovery, enjoy Ella & Caroline on this tremendous episode of one of our sibling shows on the network, Secretly Incredibly Fascinating!

You may have heard Epigenetics used as a buzzword, but what is it really? Is it something we know about, something still new, or... both? And what in the world are the World Games, and what makes them better than the Olympics?

It's a word we say all the time but... what IS a species? How has it been used in the past, and could the different answers all be right? And how does voting work in the UK? It starts with voting for knights, and could hopefully end in the future with something even better.

After much deliberation, the academy (listeners of the podcast) has voted on the best topics from the past year! If this is your first episode, you'll get a sampling of our favorite moments of science and sillyness, and if you're a long time listener, you'll hear some behind the scenes thoughts about the topics, as well as... a secret teaser at the very end??

What happens when a star collapses to a point of near infinite gravity? And just how hard could that be to actually... find? And why do we love tattoos so much, and how long have human beings across the world been loving them too?

How fast can a regular human accelerate from 0-60? How can you learn to love roller-coasters? And is there a terrifying experience Ella's done that even Tom Scott hasn't?? After having us on his show for so long, it's finally time for Tom Scott to join us on our show!

It's Pride and Poll-jedice! For pride month we have some pride merch including an amazing design by Caroline, with proceeds going to Pride in Stem! Also, toss in your vote to defend the honor of your favorite topic for the next Best Of Everything episode! All of this is at LetsLearnEverything.com

What can we learn by mimicking animals in nature, and more importantly, what can we learn about the nuance behind the buzzword of biomimicry? And just how many wild facts are hidden in a simple chess set?

How much real science is there to the Mandela Effect, and how much should we be worried about our faulty memories? And what's the science and history behind our long love for house plants?

What happens when the largest living animal becomes the largest dead animal? Just how complex could a dead whale be? And what are the differences, flaws, and nuances of the jury system, and can we be studying it better?

What are all these rocks hurtling through space? Do we need to worry about them, and what can we learn from them? And what are guitar tabs, why don't people take them seriously, and why does Tom love them so dang much?

With Tom as their DM, Ella, Caroline, and Ellen Weatherford team up for a dicey heist in the big apple. Only one catch: they're rats! Can Rex, Tango, and Muriel ratatouille their way to nab the cheddar, or will they crumble like feta? Believe it or not this is only the first quarter of the full 2 hour episode that you can only get by becoming a member at MaximumFun.org/join

Can Tom finally take on his science communication white whale: Quantum Physics?? And what is gossip, what did it mean in the past, and could it actually be... good?? Find out on a very special MaxFunDrive episode!

IT'S THE MAXFUNDRIVE!!! And we're kicking it off with a network-wide trivia competition with other MaxFun hosts! You can see all our upcoming events during the drive and become a member at www.LetsLearnEverything.com

What would a man-made ecosystem look like on mars? Just how complicated could it possibly be? And are the human and societal issues just as complicated? Science communicators and authors Zach and Dr. Kelly Weinersmith ask and answer all of these questions and more!

Losing your head isn't good, but what actually happens, and what can it tell us about animals, ethics, and bad science? And what is a constructed language, when does it fail, and when can it be use to make great... art? As they say, Ni Lernu Ĉion!

How have human beings evolved, and how could we evolve in the future? And what are some famous first messages, and what can we learn from looking at them?