Mumbling fantastical gibberish; devouring blocks of cheese in the nude; peeing in places that aren't toilets; and jumping out of windows. These are all things people have reportedly done while sleepwalking, a behavior that can be...

Nearly 350 species of fish have specialized anatomical structures that generate and detect electrical signals. Underwater, where light is scarce, electrical signals offer ways to communicate, navigate, find, and sometimes stun prey. But...

Salting roads in the winter is pretty commonplace in areas of the world that see freezing temperatures, but it isn't the only solution.

This is an absolutely beautiful piece of math. It shows how certain ideas from topology, such as the mobius strip, can be used to solve a slightly softer form of an unsolved problem in geometry.

The DNA in just one of your cells gets damaged tens of thousands of times per day. Because DNA provides the blueprint for the proteins your cells need to function, this damage can cause serious issues-including cancer. Fortunately, your...

Mike Gil spies on fish: using novel multi-camera systems and computer vision technology, the TED Fellow and his colleagues explore how coral reef fish behave, socialize and affect their ecosystems. Learn more about how fish of different...

Not all animals have a mouth, or even need one to eat! These different feeding strategies can teach us a lot about our ancestors and how they went from not needing a mouth at all to only eating with one.

When under anesthesia, you can't move, form memories, or -- hopefully -- feel pain. And while it might just seem like you are asleep for that time, you actually aren't. What's going on? Steven Zheng explains what we know about the...

Sometimes, studying uncommon maladies can reveal larger insights into how our bodies work!<br/>
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There's a lot we don't understand about autism spectrum disorder, but this week scientists announced that they may have found a link between the disorder and elevated hormone levels.

Fermi bubbles are made up of gamma rays, but where they came from is still up for debate. Did they come from a star-forming region, or the black hole at the middle of our galaxy?

In this video Paul Andersen describes the defining characteristics of members in the domain archaebacteria. He starts with a brief description of the phylogeny of this group. He then describes the major characteristics on an archaea,...

It's hard to escape childhood without racking up a few scars. Why do these leftover reminders of a painful cut or crash look different from the rest of our skin? And why do they stick around for so long after the incident that caused...

Out of billions of galaxies and billions of stars, how do we find Earth-like habitable worlds? What is essential to support life as we know it? Ariel Anbar provides a checklist for finding life on other planets.

Sunbeams shooting down through the clouds make for some great photographs, but what's the science behind these beautiful rays of light?

Learn about some cool, chilly, spaces with Jessi and Squeaks!

Germs are found on almost every surface we come in contact with, which makes it incredibly common for our bodies to be exposed to them. But why are some of these germs relatively harmless, while others can be fatal? Yannay Khaikan and...

You may think oysters taste kind of gross, but did you know that some of them hide rare gemstones?

With a greater understanding of biological mechanisms, humans may be able to take a devastating birth defect and turn it into a treatment for cancer.

When we talk about 'English', we often think of it as a single language. But what do the dialects spoken in dozens of countries around the world have in common with each other, or with the writings of Chaucer? Claire Bowern traces the...

Humans may not hibernate, exactly, but that doesn't necessarily mean we're totally unaffected by the changing of seasons.

Lice... the mere mention of them is enough to make most people all itchy. Well, get ready to get scratching, because we've compiled seven squirm-inducing lice facts on this week's List Show!

Even if you like your job, it’s not unusual to feel "burnout." But the idea of what that means has evolved over time.

Babies are amazing, tiny humans. They’re so fascinating that we’ve done a lot of videos about them, so we’ve collected a bunch of our favorites here for you to enjoy!