Humans have known that uranium can cause health problems since at least the 1820s. But that hasn't stopped us from making stuff with uranium in it over the past two centuries. Like teeth, toys, and diabetes treatments! Hosted by:...

Ever wondered why you tense up, get pale, and eat too much when stressed? There's a very good evolutionary reason. Hosted by: Savannah Geary (they/them)

CRISPR-based gene therapies are already changing healthcare for things like sickle cell disease. But CRISPR is bigger than just medicine, and it could revolutionize everything from food and agriculture to green energy fuels to plastics....

Myxozoans are so weird. They're jellyfish the size of single-celled organisms. Some of them even live on land. New weirdest animal just dropped. Hosted by: Savannah Geary (they/them)

Today we're talking about the weirdest trees in the world, from the psychedelic rainbow eucalyptus, to the dragon's blood tree, to the jabuticaba that grows delicious fruits on its trunk. Hosted by: Hank Green (he/him)

Sometimes, one animal ends up in an evolutionary arms race with another for millions of years. Here are four fascinating examples, including our own showdown with snakes. Hosted by: Jaida Elcock (she/her)

When conditions are just right, one species can turn into hundreds in a short period of time. Welcome to the weird world of adaptive radiation. Hosted by: Jaida Elcock

Even when a species has officially gone extinct, there's sometimes still hope of saving it. Scientists keep insurance populations of endangered animals all over the world with the goal of one day reintroducing them to the wild. Hosted...

Today, humans live on just a few staple crops, like maize, rice, and wheat. But in the early days of agriculture, humans were domesticating foods left and right. Come with us as we discover the lost crops of North America, like pitseed...

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. Hosted by: Savannah Geary (they/them)

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. Hosted by: Hank Green (he/him)

Support for this video provided by Gates Ventures. Hosted by: Reid Reimers (he/him)

It's not just your imagination. Turbulence on airplane flights is getting worse, including severe turbulence that could cause injuries. The reason is the climate crisis -- here's how. Hosted by: Tom Lum

Low-E windows have reduced the amount of energy required to heat and cool our buildings, a critical step in fighting climate change. But new research suggests we've lost something beneficial in the process. Hosted by: Hank Green (he/him)

In September of 2023, researchers detected a strange vibration all across the planet. They traced it back to a massive tsunami off the coast of Greenland, but the sound went on even after the wave was gone. As in, for nine full days....

If you've ever heard about things like mammoths being found in permafrost, you may have an image in your head of what that looks like. But you might be wrong! So let's talk about what permafrost really is, why it's so important, and why...

You can turn all your old cooking scraps into gardening gold, thanks to hard-working microbes. Here's all the science of compost and everything you need to know to get started composting. Hosted by: Savannah Geary (they/them)

Do you taste something bitter when you hear the right word? Maybe you see a flash of a certain color instead. If so, you might have synesthesia. But it turns out, we're ALL capable of having different senses interact with one another in...

The conditions in many medicine cabinets turn out to be detrimental for medicines—some worse than others. Hosted by: Hank Green (he/him)

Weather may be something you associate with life on land, but the ocean has its own version of fronts and storms. Hosted by: Jaida Elcock (she/her)

There's a lot of humans on our planet. But our global domination was hardly a given. New evidence suggests that our ancestors were on the brink of total extinction nearly a million years ago. So let's talk about that time when the Homo...

Hey remember that time you waved at a stranger who was actually waving at someone behind you? The universe can, at least in its own way. If you thought gravitational waves were wild, just wait until you hear about this thing called...

This October, the launch window opens for NASA's Europa Clipper mission. When it arrives in the Jovian system, this spacecraft will probe the icy moon...and its ocean buried kilometers beneath the surface...for the ingredients of life as...

The Pyramids of Giza have fascinated and confused us for hundreds of years, and while we know a lot about who built them and how they were made, one question that has remained is why they are where they are. And the answer to that...