Why Do Stink Bugs Stink?

Why Do Stink Bugs Stink?

[♪♩INTRO] If you’ve ever made the mistake of squishing a stink bug, you know exactly how they earned that name. If you haven’t, might I suggest keeping it that way? Stink bugs give off an awful smell when they’re attacked…

Editing Genes Inside the Human Body

Editing Genes Inside the Human Body

[♩INTRO] Last week was a pretty big deal for the future of medicine. For the first time ever, researchers injected someone with tools that would edit his DNA, hopefully curing his genetic disease. If it works, it’ll be a huge…

Common Misconceptions About Evolution

Common Misconceptions About Evolution

Sometimes, the way we use words in conversation is different from the way scientists use them in a formal setting. Which is fine, but it can cause confusion when you’re trying to talk about science. Evolution as a subject is…

3 Surprising Things Matter Does Under Extreme Pressure

3 Surprising Things Matter Does Under Extreme Pressure

SciShow is supported by Brilliant.org – a problem-solving website that teaches you how to think like a physicist, statistician, or mathematician. [♪♩INTRO] Pressure can make us do some pretty weird things, from forgetting our own names during a big presentation,…

How Are Search Engines So Fast?

How Are Search Engines So Fast?

You’re looking for a file, and you know that you just saved it. You know where you hoped this file was saved, but you just don’t see it. So you try searching your computer, and end up really frustrated. This…

Why HIV Isn’t a Death Sentence Anymore

Why HIV Isn’t a Death Sentence Anymore

[♪ INTRO] If you’re looking for the virus that’s challenged scientists the most in the last 40 years, HIV is it. For a while, every time we’d develop a new treatment for it, the virus would just mutate so the…

The Toughest, Biggest, and Hottest Science of 2017

The Toughest, Biggest, and Hottest Science of 2017

[INTRO ♪] 2017 has been an amazing year for science. From neutron star collisions and potentially habitable planets to birds that whistle alarm signals as they fly, we have covered a lot of groundbreaking science news this year. But before…

Does Anti-Aging Cream Work?

Does Anti-Aging Cream Work?

If you turn on your TV or open any beauty magazine, odds are you’ll come across an ad for the newest anti-aging cream, featuring models with impossibly smooth faces and long lists of chemicals. These ads sound misleading and, don’t…