The Atlantic Ocean is the second largest on Earth, and yet there are no sea snake populations to be found there. What’s keeping aquatic serpents from making a home in these waters?

Vanessa Hill of BrainCraft shares her science YouTube story with Hank and reveals a big announcement! Jessi from Animal Wonders and a special Australian friend or two join in the second half.

A classic puzzle in graph theory, the "Utilities problem", a description of why it is unsolvable on a plane, and how it becomes solvable on surfaces with a different topology.

SciShow Talk Show: where Hank talks to interesting people about interesting things! In this episode Hank and Collections Manager Kallie Moore talk ancient life, careers in science, and dragons.

Hank talks birds, flight, and dinosaurs with evolutionary biologist Brandon Jackson. Then Jessi from Animal Wonders shows up with a special guest, a white-cheeked turaco named Curly Bird!

During the 2017 Project For Awesome livestream, I promised I'd make a tuatara video if we hit our fundraising goal, and I'm a man of my word! Little did I know I'd get to meet a tuatara and learn things about a 200 million year old...

Flappy Bird was quite the gaming craze, but what about this super simple game appealed to our brains so much?

Researcher Hans Rosling uses his cool data tools to show how countries are pulling themselves out of poverty. He demos Dollar Street, comparing households of varying income levels worldwide. Then he does something really amazing.

A lot of ionic compounds dissolve in water, dissociating into individual ions. But when two ions find each other that form an insoluble compound, they suddenly fall out of solution in what's called a precipitation reaction. In this...

Stefan returns to challenge Hank on Quiz Show, and the rest of the SciShow Tangents crew decided to join in the fun!

In which John Green teaches you about railroads, and some of the ways they changed the world, and how they were a sort of microcosm for the Industrial Revolution as a whole. Prior to the invention of steam powered railroads, pretty much...

Great design is a never-ending journey of discovery -- for which it helps to pack a healthy sense of humor. Sociologist and surfer-turned-designer David Carson walks through a gorgeous (and often quite funny) slide deck of his work and...

Olympic National Park is temporarily closed as Washington, the US, and the world work to mitigate the spread of the COVID-19 virus. We filmed this series in early January and are currently at home practicing social distancing. We hope...

Jen Fowler of the Montana Space Grant Consortium joins us this week to talk about her work with weather balloons and the upcoming solar eclipse, and Jessi from Animal Wonders brings along Gaia the Southern Three-Banded Armadillo!

Hank's friend from grad school, Bryan von Lossberg recounts his time working on NASA's Mars Pathfinder mission, and Jessi from Animal Wonders surprises us with Goma the red eyed tree frog!

Katherine is back with more information about cats and Jessi from Animal Wonders shares Gonzo the crimson-rumped toucanet.

In this episode of SciShow Talk Show Hank chats with Chad Larrabee of Montgomery Distillery about the science of distilling alcohol. Special guest is Jessi Knudsen Castañeda of Animal Wonders with Groucho the hedgehog.

October 11, 2017 is National Fossil Day! Kallie Moore, the collections manager at UM’s Paleontology Center, talks to Hank today about why fossils are important, and how you can get involved in this national holiday! (Psst. at 12:20,...

"Magic is a great analogy for how we edit reality and form a story -- and then mistake that story for the truth," says psychological illusionist Derren Brown. In a clever talk wrapped around a dazzling mind-reading performance, Brown...

Vanessa Hill of BrainCraft shares her science YouTube story with Hank and reveals a big announcement! Jessi from Animal Wonders and a special Australian friend or two join in the second half.

Paul Andersen shows you how to use Screenflow, Keynote, and Omnidazzle to make an educational screencast.

Poet C.K. Williams reads his work at TED2001. As he colors scenes of childhood resentments, college loves, odd neighbors and the literal death of youth, he reminds us of the unique challenges of living.

Join us for a trip into the SciShow Space News Debunker, where we explore the rumors that NASA has created a warp drive.

It's 2013, yet 2.5 billion people in the world have no access to a basic sanitary toilet. And when there's no loo, where do you poo? In the street, probably near your water and food sources -- causing untold death and disease from...