The people of Palau -- a pristine ocean state made up of more than 300 islands in the western Pacific -- warmly welcome travelers to their home every year. But the guests don't always know how to protect the country's beautiful beaches...

You know, it's probably best to just not put snow in your mouth regardless of color.

Did you know you have useful tools right at your fingertips? That's right: your fingernails! Jessi and Squeaks learn why fingernails are so important!

For some people, fava beans can be deadly. What is it about this little legume that makes it so?

We here at SciShow know of two things that can help you get through this flu season: a flu shot, and watching this video. Make sure you do both!

We’re all super familiar with the feeling we get when we smell rotten food or see gross bodily fluids. But this visceral emotion does a lot more than that, and it’s important understand to how the darker side of disgust can influence us.

In which John Green teaches you about war! Specifically, John talks about whether humanity is naturally warlike, hard-wired to kill, or if perhaps war is a cultural construct. John will talk about the Hobbes versus Rousseau debate, the...

Muscles and joints shift and jostle. The heart's pounding rhythm speeds up. Blood roars through arteries and veins. Over the course of a pregnancy, every organ in the body changes. Initiated by a range of hormones, these changes begin as...

For sculptor Jason deCaires Taylor, the ocean is more than a muse -- it's an exhibition space and museum. Taylor creates sculptures of human forms and mundane life on land and sinks them to the ocean floor, where they are subsumed by the...

Organized crime operates across national borders -- to keep up, investigative journalists need to do the same. TED Fellow Bektour Iskender gives the inside scoop on his efforts to unveil secret, insidious operations in his home country...

We can all play a role in the climate movement by tapping into our skills, resources and networks in ways that bring us satisfaction, says climate leader Ayana Elizabeth Johnson. She suggests drawing a Venn diagram to map these...

It’s been a pretty cool year for science around the globe, and we here at SciShow like to highlight the superlatives: some of the biggest, oldest, fastest, and most amazing discoveries of 2016.

SciShow Psych tackles the science behind what might be one of the most hated words in the English language: moist.

Today, Craig is going to wrap up our discussion of discrimination by looking more closely at those “discrete and insular minorities” referenced in the 14th Amendment. We’ll talk about instances of discrimination of Asian, European, and...

Explore some examples of specialized plant and animal cells with the Amoeba Sisters! Video explains how specialized cell structure suits their function. Table of Contents: Intro 00:00 Specialized Cell Defined 0:26 Animal and Plant Cells...

The beach is nice, but why does spending time out in the sun leave us feeling so exhausted?

So, if economics is about choices and how we use our resources, econ probably has a lot to say about the environment, right? Right! In simple terms, pollution is just a market failure. The market is producing more pollution than society...

What would you do if your job was to save the planet? When Christiana Figueres was tapped by the uN to lead the Paris climate conference (COP 21) in December 2015, she reacted the way many people would: she thought it would be impossible...

During the warmer months, especially at night during the full moon, horseshoe crabs emerge from the sea to spawn. Waiting for them are teams of lab workers, who capture the horseshoe crabs by the hundreds of thousands, take them to labs,...

What would you do if you were in charge of a billion-dollar satellite that was spinning out of control? In 1998, NASA and ESA engineers had to solve this exact problem. How did they avert this disaster?

Sunscreen comes in different levels of SPF, or sun protection factor, but what does that mean for your skin and the ultraviolet radiation hitting it? Olivia explains the science of SPF.

Botanical artist Nirupa Rao captures the spirit and beauty of nature in watercolor. With a portfolio of enchanting, scientifically accurate illustrations, she aims to reignite our emotional connection to the environment -- and open our...

Part of being very far away from the rest of the universe is that the signals are very faint, so sometimes you need a nice, quiet spot to listen from.

Sending an email message is like sending a postcard, says scientist Andy Yen in this thought-provoking talk: Anyone can read it. Yet encryption, the technology that protects the privacy of email communication, does exist. It's just that...