When you see a bunch of fossils in a museum, you might not think about how unlikely it is that they got there. But there's a lot of lucky dice rolls that landed that mastodon in the museum, and researchers are really motivated to find...

You may have heard of Blue Zones, these isolated pockets of the world where people seem to live into the triple digits way more often than everywhere else. But what's really going on, and does the research say it's as simple as eating...

You've probably heard that processed foods are bad for you. But is that true for all of them? And how do we know?

This video description is brought to you by language. But how long have humans been able to use our gift of gab? The answer is a lot more complicated than you might think. From studying fossil brains and ear bones to DNA migration...

Throughout history, humans have come up with some pretty weird ideas related to longevity. Like drinking neurotoxic mercury to live forever, slathering yourself in oil and eating honey to reach the ripe old age of 300, or getting an...

More and more people under 50 are being diagnosed with colorectal cancer. These young people don’t seem to have any of the usual risk factors for colorectal cancer, like an inherited genetic mutation. after some sleuthing, scientists...

In the southeast corner of New Mexico, the United States is burying decades of nuclear waste. The storage site, and the earth above it, will remain lethal for millennia...perhaps as much as 300,000 years! How can we warn people that far...

The Giant's Causeway is a rock formation that is so otherworldly that it seems like it was made by supernatural beings. But these incredible hexagonal columns of rock aren't the result of giant masons. They formed through a quirk of...

If you've got a uterus, you've probably heard of menopause. But there's a lot that doesn't get talked about when it comes to this period, or lack thereof. This video is going to break down the real deal with menopause and give you...

In a remote corner of Siberia, a Russian scientist is trying to restore the ecosystem to the way it was during the last Ice Age. And while Pleistocene Park is definitely eccentric, it has implications for the future of the entire planet.

When humans are gone, nature will reclaim our cities and break down much of what we've built. But some of the things we've made will last much longer than others, and they're probably not the things you'd expect.

Endometriosis is a disease that affects about one in ten women, and comes from tissue inside the uterus making its way out. But it turns out that's not the only way to get it, because there are people without uteruses who have it too....

How much information can a human brain store? If we treat them like computers, one estimate is that they can hold 55 million ebooks worth of information. But why restrict ourselves to biology? If you had the right technology, how much...

When particle physicist John Huth was briefly lost at sea, he started to wonder how the people around the world who navigate vast oceans figured their way around. What started as an afternoon activity gone awry led him to a years-long...

Where does water come from? If you turn on the faucet, there's water. But it goes on an incredible journey to get there. Today, Jessi and Squeaks learn about all the places we can find water.

Bill and Webb want to know: What's stronger, wind or water? Both of them can change the shape of the land. So which one does it better?

Jessi and Sam the Bat talk about the biggest volcano ever that we know of. And it's not on Earth. It's Olympus Mons, on the planet Mars!

Squeaks is back from his trip around the world! In this episode, he and Jessi discuss the second stop on his trip: Fiordlands National Park (aka Te Rua-o-te-moko) in New Zealand (aka Aotearoa)<br/>

Water makes an amazing journey around the world called the water cycle. Squeaks and his friends put on a play to learn all about it!

Squeaks is heading on a trip around the world! He's going to experience so many things, using senses he didn't even know he (or his human friend Jessi) has! In this episode, he learns about senses beyond the common 5 (sight, hearing,...

After learning about igneous and sedimentary rocks, Savannah and Sam learn about the final main kind of rock: metamorphic rocks. And they review how each of these rocks can turn into another!

Squeaks is looking to plan his next vacation. Jessi tells him all about the amazing volcanoes you can find in

Squeaks is heading on a trip around the world! He's going to see so much, and wants Jessi to experience those sights, too. In this episode, he learns about how humans (and a couple of other animal guests) see.

Jessi and Sam the Bat learn about every kind of volcano. Some erupt suddenly and some erupt slowly. Some are tall, some aren't big mountains at all, and some stopped erupting a long time ago. But they're all volcanoes!