Bumblebees fly, lights turn on, and you can ride a bike without falling over. We all know these things to be true, but what you may not know is the real reason behind why they work. Join Olivia to bust seven myths about motion.

You know that thing you've been putting off for awhile, that could probably be done now but instead not doing 'cause it doesn't sound like fun' right now? Well here's an explanation as to why you probably feel that way. So stop...

Drugging animals may seem like a bad idea, but you'd be shocked to learn what it can teach scientists about disease, biology & animal behavior! Join us for a new animal-focused episode of SciShow, hosted by the one and only Hank Green!

What’s up with ticklishness? And are other animals ticklish, too? Quick Questions has the answers!

Hank describes some of the best explanations that neurologists have come up with to account for the strange sensation we know as déjà vu.

Turns out humans aren't the only animals that can medicate themselves - many other animals have found ways to deal with illness by using natural remedies. Hank will tell you about some of the most interesting methods animals have found...

The Five Stages of Grief show up in media everywhere from The Simpsons to Robot Chicken, but scientists have long been working on better ways to think about grief.

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! Hosted by: Hank Green

Hank tells us about the Mayan calendar & why December 21, 2012 will not be the end of the world.

Roller coasters give people the opportunity to experience physics in dramatic ways. In this episode of SciShow, we break down how physics work on roller coasters to give you the ride of your life!

We know that everyone poops, but what is your poo actually telling you? Here on SciShow, we've talked a lot about poop and the science behind it—so today's episode is a compilation of answers to your poop related questions! Join Stefan...

Let’s face it: humans stink! But that’s not always a bad thing - we use smells to interact with each other and navigate our lives. Hosted by: Hank Green

What is the science behind doppelgängers? In this fun episode of SciShow, two bespectacled science YouTubers enter, one bespectacled science YouTuber leaves ... because while they may look suspiciously alike, Joe Hanson has his own...

Hank's friend from grad school, Bryan von Lossberg recounts his time working on NASA's Mars Pathfinder mission, and Jessi from Animal Wonders surprises us with Goma the red eyed tree frog!

Have you ever thought you felt your phone vibrate, only to pull it out of your pocket and find that you have no new notifications? If so, you've experienced 'phantom vibration syndrome.' But what causes these mystery sensations, and are...

Hank makes it all better by explaining the biochemistry of pain -- how it works, why we have it, and how painkillers, whether they're over the counter or heavy-duty prescription bad boys, make the pain go away.

You'd think that air that was the same temperature as your body would feel neutral, but if you've ever been outside when it's 37 degrees Celsius out... you know that's not the case! Hosted by: Stefan Chin

Humans (and our pets) frequently instinctively stretch as soon as we wake up. But why? What is happening in our bodies when we stretch and yawn to wake ourselves up?

The answer to why wasabi is such a nose burner has to do with a compound that researchers are trying to use in a creative way! Hosted by: Stefan Chin

Why do your fingers and toes get wrinkly when they’ve been in the water too long? Short answer: Your nerves. Longer answer: Evolution.

While studying inequality and social mobility, Richard Reeves made a surprising discovery: in some countries, like the US and UK, boys are drastically lagging behind girls across many academic measures. He explains why these struggles in...

Our bodies instinctually respond to the movements and rhythms of nature, like the uplifting feeling you get when walking in a forest. Can art evoke the same emotions? Experiential artist Lonneke Gordijn takes us through her studio's...

Learning how to have productive conversations about race is a necessary part of the human experience. Educator Afrika Afeni Mills says the best place to start is in the classroom -- because the earlier these skills are taught, the fewer...

Is it possible for taking action on climate change to make you feel happy? Behavioral scientist Jiaying Zhao believes that's the only way we'll create lasting, sustainable change. From treat meals to feng shui fridges, she offers eight...