Few countries in the world are considered more vulnerable to the impact of rising sea levels and climate change than Bangladesh, a nation of 175 million people squeezed into a landmass the size of Iowa. In partnership with the Pulitzer...

Want a Pineapple? If you want a pineapple, it's possible you can just run down to the store and get one. But, if you wanted to grow one, that's a lot more difficult depending on where you live. In this episode of Crash Course Kids,...

The Maasai people have lived sustainably off the savanna for centuries, raising cattle for sustenance and income. Climate activist Dorcas Naishorua paints a picture of how the climate crisis is threatening their way of life — and calls...

Squeaks and Jessi have been having fun learning all about Australia. Squeaks wants to know more about marsupials, the special group of animals that lives almost nowhere else. So Jessi introduces him to a...

Can having Herpes actually have benefits? While herpes viruses cause harmful or annoying afflictions like chickenpox and cold sores, there’s also evidence it can help your immune system fight unrelated attackers. Join Olivia Gordon for a...

With their squishy bodies and color-changing abilities, octopuses and other cephalopods already look like our planet’s resident aliens. But researchers have discovered yet another thing that separates them from most other animals on...

Hank interviews Administrator Gina McCarthy of the United States Environmental Protection Agency. They discuss getting people to care about climate change, the EPA's goals going into the United Nations Climate Change Conference, and the...

Our culture and heritage is part of who we are. But if we treat it as something that can't change, if we feel threatened by other cultures, says award-winning children's books author Grace Lin, "we make our lives smaller." Lin shares her...

Hank explains where that over-simplified image of evolution comes from and what it is actually supposed to mean.

While herpes viruses cause harmful or annoying afflictions like chickenpox and cold sores, there’s also evidence it can help your immune system fight unrelated attackers.

With their squishy bodies and color-changing abilities, octopuses and other cephalopods already look like our planet’s resident aliens. But researchers have discovered yet another thing that separates them from most other animals on Earth!

What if robots could build and optimize themselves -- with little to no help from humans? Computer scientist Emma Hart is working on a new technology that could make "artificial evolution" possible. She explains how the three ingredients...

People everywhere are using Zoom to work, take classes, do yoga -- and even get married. The company's CEO and founder Eric Yuan reflects on how they developed the world's most popular video chat software and envisions a digital future...

After stalking a cuttlefish, a moray eel finally pounces. As the eel snags the mollusk in its teeth, its prey struggles to escape. But before it can wiggle away, a second set of teeth lunge from the eel's throat. This adaptation is...

I was the first woman president of an African nation, and I do believe more countries ought to try that, says H.E. Ellen Johnson Sirleaf, Nobel laureate and former president of Liberia. Telling the story of how Liberian women helped...

What will the world look like when we move beyond the keyboard and mouse? Interaction designer Sean Follmer is building a future with machines that bring information to life under your fingers as you work with it. In this talk, check out...

Living in a city means accepting a certain level of dysfunction: long commutes, noisy streets, underutilized spaces. Carlos Moreno wants to change that. He makes the case for the "15-minute city," where inhabitants have access to all the...

Around 500 Million years ago, Earth’s climate was warm, and the planet had nearly no ice, even at the poles. Then an asteroid broke apart deep in our solar system, and our planet plunged into an ice age at the same time. Are the two...

The ocean is often thought of as a victim of climate change, in need of human protection. But ocean expert Susan Ruffo says that mindset needs to shift. From storing carbon to providing protection to coastal communities, Ruffo highlights...

It's an unfortunate reality in nearly every major city—road congestion, especially during rush hours. Jonas Eliasson reveals how subtly nudging just a small percentage of drivers to stay off major roads can make traffic jams a thing of...

Humans can’t go too far above or below sea level unaided, but there are some complex forms of life that CAN survive at super high elevations or in the deepest parts of the ocean.

Prolonged space travel plays a severe toll on the human body: microgravity impairs muscle and bone growth, and high doses of radiation cause irreversible mutations. As we seriously consider the human species becoming space-faring, a big...

Hank interviews Administrator Gina McCarthy of the United States Environmental Protection Agency. They discuss getting people to care about climate change, the EPA's goals going into the United Nations Climate Change Conference, and the...

Morning glories unfurl their petals like clockwork in the early morning. A closing white waterlily signals that it's late afternoon. And moon flowers, as their name suggests, only bloom under the night sky. What gives plants this innate...