Botanist Corneille Ewango talks about his work at the Okapi Faunal Reserve in the Congo Basin -- and his heroic work protecting it from poachers, miners and raging civil wars.

Shimon Schocken and Noam Nisan developed a curriculum for their students to build a computer, piece by piece. When they put the course online -- giving away the tools, simulators, chip specifications and other building blocks -- they...

Modern American health care is defined by its high costs, high overhead and inaccessibility -- especially for low-income patients. What if we could redesign the system to serve the poor and still have doctors make money? In an...

Today we’re going to talk about climate change which is when there is a change in the average weather patterns in a region over a long period of time - these changes can be natural or human-caused. We’ll discuss the main driving forces...

If a doctor has told you to quit smoking, that's not just because they're worried about lung cancer. Those cigarettes are messing up your body's natural healing process in more ways than one.

At TED2010, mathematics legend Benoit Mandelbrot develops a theme he first discussed at TED in 1984 -- the extreme complexity of roughness, and the way that fractal math can find order within patterns that seem unknowably complicated.

Right now, scientists need additional COVID-19 monitoring methods. And our poops might help!

Sometimes, ancient ruins can be a little out of the way, but with some creativity, we can use satellites for those hard to reach areas.

What's the awesomest place in the world? Scientists can think of at least 137, the newly released list of the most biologically important places on Earth. Hank explains how ecologists arrived at this list, and takes you on a tour of four...

Last time, we learned that there is in fact weather on other planets. But those were the rocky planets, like Earth. What about the big Gas Giants? What's the weather like there? In this episode of Crash Course Kids, Sabrina takes us on a...

Our planet shares a lot with other rocky planets in our solar system, but astronomers have found a few mountains out there that are nothing like ours.

When humans build a city, most species in the area tend to disappear. But there are some, called synurbic species, that are living their best lives in our concrete jungles.

A group of scientists this week has found a chemical trick that might one day help block the harmful effects of loud noises on our ears, and another has built an underwater robot to take a look underneath Thwaites glacier.

This week, a group of scientists estimated the cost of saving just one small village in America’s Chesapeake Bay from rising sea levels, and another found evidence that Smilodon (aka the saber-toothed cat) actually helped take care of...

Scientists have been staking out a forest in Montana for an animal that's notoriously tricky to find. Camera traps haven't offered definitive evidence, and experts can't identify its tracks with certainty. But within the past decades,...

What if manipulating body mass wasn't just the stuff of epic comic book stories? Is it scientifically possible to manipulate your body mass? In this series, Joy Lin tackles six superpowers and reveals just how scientifically realistic...

Scientists have used a bacteria that commonly infects us to track how ancient humans spread to the Americas from Siberia. And other scientists have discovered a new species of hyrax in the forests of Africa by listening to their barks...

As globalization and technological advances bring us hurtling towards a new integrated future, Ian Goldin warns that not all people may benefit equally. But, he says, if we can recognize this danger, we might yet realize the possibility...

We have personal computing -- why not personal biotech? That's the question biologist Ellen Jorgensen and her colleagues asked themselves before opening Genspace, a nonprofit DIY bio lab in Brooklyn devoted to citizen science, where...

It may not appear very lively six feet underground, but a single teaspoon of soil contains more organisms than there are human beings on the planet. From bacteria and algae to fungi and protozoa, soils are home to one quarter of Earth's...

Activist and fundraiser Dan Pallotta calls out the double standard that drives our broken relationship to charities. Too many nonprofits, he says, are rewarded for how little they spend -- not for what they get done. Instead of equating...

Science probably isn’t the first thing that pops into your head when you think about Alaska, but it has a lot to offer when it comes to learning about the world, from cold corals to our behavior.

Scientists have had to come up with some extreme ways to generate the extreme pressures needed to simulate the conditions at the cores of planets!

Modern-day Ohio is more than 600 kilometers from the ocean - yet it has thousands of ocean fossils dating back to the Ordovician, giving us a glimpse at its past under an ancient, fishless sea.