You may have heard that redheads need less pain medicine, or that they need more anesthesia in surgeries. And both of those things are true! Which is weird. Let's talk about some of the stuff we know about what the heck hair color has...

For everyone out there trying to live sustainably, you might also want to consider the best way for your loved ones to dispose of your body after you're gone. Is a green burial best? What about human composting (where it's legal)? And...

Trilobites are one of the most iconic fossil animals out there. And people have loved them for centuries! Let's talk about the people across time and space who have loved collecting trilobites, from Elrathia to Calymene, going back...

In November 2023, NASA's Lucy spacecraft flew by the asteroid Dinkinesh and made a startling discovery: not only does this small asteroid have an even smaller companion (named Selam), that companion is shaped like a two-tier snowman....

The most common substance in the world is literally IN the world. It's a mineral called bridgmanite, and it belongs to a class of minerals (called perovskites) that scientists are trying to use in the next generation of solar...

Identical twins may look exactly alike, but they differ in some pretty weird ways. In this List Show, we'll explore five of them. <b<br/>r/>

Hosted by: Jaida Elcock (she/her)

Did the Easter Islanders really cause their own civilization's collapse? Probably not. In fact, they used rock gardens to grow food sustainably on the island of Rapa Nui for centuries.<b<br/>r/>

Hosted by: Savannah Geary (they/them)

When you think about enormous living things, mushrooms and seagrass may not be the first organisms that come to mind. But they should be!<b<br/>r/>

Hosted by: Jaida Elcock (she/her)

Hurricanes are scary and the idea is usually to move away from them as much as possible. Then there are the intrepid scientist-pilots at NOAA who fly right into them. On purpose. And they do it to save lives.



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Back in the Victorian Era, Englanders thought that the famous Roman Baths were so healing because there was radium in the water. And there was, but that wasn't the real secret. Turns out that the baths are teeming with microbes that...

Humans aren't the only ones who refer to each other by name. Several species in the animal kingdom refuse to live in anonymity. <b<br/>r/>

Hosted by: Jaida Elcock (she/her)

Polymetallic nodules, found at the bottom of the Pacific Ocean's Clarion-Clipperton Zone, have enough metals to secure the future of green energy. But is it worth the cost?<b<br/>r/>

Hosted by: Savannah Geary (they/them)

Seasonal flu kills half a million people every year. But scientists may have found a drug that, while it won't stop you from getting the flu, could stop it from killing you.<b<br/>r/>

Hosted by: Hank Green (he/him)

Vultures aren't most people's favorite animal. But when they began dying in India, they set in motion a domino effect that spread disease and cost the government billions of dollars. <b<br/>r/>

Hosted by: Jaida Elcock (she/her)

You may have gotten a dose of laughing gas at the dentist at some point. But new research is suggesting that the same gas that helps you forget your toothache could be a future treatment for clinical depression.



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Whether someone's running for President or to be on their school board, there's a lot that a politician has to do to try to sway voters. But did you know that what name they use is on that list? Research shows that whether you choose...

You've probably heard that climate change is leading to rising sea levels, which is bad news for lots of islands. But for some islands like the Maldives, rising waters are making them... bigger?



Correction: We mixed up east...

In the history of space travel, there are a few famous animal astronauts (or cosmonauts), like Laika the dog and Ham the chimpanzee. But you might not have heard of Félicette, who in 1963 became the first -- and so far only -- cat to...

Correction: This is Watt's law, not Ohm's law! Our math was right but our name was wrong.



We need green energy yesterday. And it so happens that nature regularly sends huge bolts of electricity at us out of the sky. So what...

Climate disruption threatens food security around the world, but it's especially dangerous for fish farmers. Here's how high-tech climate information services can help then adapt.<b<br/>r/>

Hosted by: Hank Green (he/him)

There's a tree species that used to be all over the world. And now, they can only be found in a secret valley in the mountains in Australia. This is the story of the rise and fall of the Wollemi Pine, including how some new tech might...

Support for this video provided by Gates Ventures.<b<br/>r/>

Hosted by: Reid Reimers (he/him)

"Water, water, every where"...or so that one poem goes. And it's kinda right, because there's way more water INSIDE the Earth than on the surface. But scientists still don't know with certainty exactly how Earth got all of that...

Frogs aren't known for their fabulous manes, but the claws of frogs are helping us learn why humans have hair -- thanks to a homeobox gene and a weird evolutionary shift.<b<br/>r/>

Hosted by: Hank Green (he/him)