In an effort to protect us from getting killed by something we’ve ingested, our brain’s vomit control center processes a lot of information from several different places … and sometimes is a little overly cautious.

What's it like to grow up within a group of people who exult in demonizing ... everyone else? Megan Phelps-Roper shares details of life inside America's most controversial church and describes how conversations on Twitter were key to her...

Got milk? Fact is, most people don't -- and shouldn't -- because for them, ice cream and milkshakes are basically toxic. So why can some people drink milk and survive? Turns out they're mutants! SciShow explains.

When you breathe, you transport oxygen to the body's cells to keep them working, while also clearing your system of the carbon dioxide that this work generates. How do we accomplish this crucial and complex task without even thinking...

Female mammals make milk, a cocktail of filtered blood, to provide their babies with vital nutrients.

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We know we're not supposed to put metal in the microwave, but why? We don't microwave silverware but what about Hot Pocket wrappers? They have metal on the inside. How does that work? Let Michael Aranda explain.

Bakers will sometimes replace the butter, oil, or eggs in their breads, muffins, and assorted tasty treats with applesauce. That pretty much sounds like culinary magic, but it's not... it's culinary SCIENCE!

Natural history is full of living things that were long thought to have gone extinct only to show up again, alive and well. Paleontologists have a word for these kinds of organisms: They call them Lazarus taxa.

* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences. Marina Abramovi's art pushes the boundary between audience and artist in pursuit of heightened consciousness and...

So when water evaporates, what happens? Where does that water go? Does just vanish? Is it no more? Can matter every just go away? Well, the answer is no, it can't. But it can LOOK like it does. In this episode of Crash Course Kids,...

From a chocolate chip cookie to a big, juicy strawberry, your favorite sweet snacks have one thing in common: sugar! Join Jessi and learn all about how sugar gets from plants to your kitchen table!

Dr. John McCutcheon is here to educate Hank about just how weird cicadas can be, and Jessi brings by a couple of crabby (but cute) guests.

New Horizons is teaching us all about Pluto! And it's definitely not what we were expecting.

On a reef in the Pacific Ocean, 17,000 camouflage groupers dart about in the cloudy water. It is, in fact, an underwater orgy— turned feeding frenzy. An orgy might seem like a rather flamboyant way to breed, but sex in the sea is a...

If you've ever wanted to get up-close and personal with the Moon, you might want to look up this Monday, because the moon will look larger and brighter than it has for decades.

Jessi and Squeaks have talked about how wells move water from one place to another before; now they're going to show you how to build your very own so you can see for yourself!

China's one-child policy ended in 2015, but we're just beginning to understand what it was like to live under the program, says TED Fellow and documentary filmmaker Nanfu Wang. With footage from her film "One Child Nation," she shares...

Over the years, scientists have found evidence for a lot of weird prehistoric animals, but some of the strangest have been the crocodyliformes!

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Have you ever sat in a doctor's office for hours, despite having an appointment? Has a hotel turned down your reservation because it's full? Have you been bumped off a flight that you paid for? These are all symptoms of overbooking, a...

Without refrigerators, we'd have spoiled milk, moldy cheese, and warm sodas. However, there are some foods that don't fare so well in a chilly fridge, including tomatoes.

The Internet has a lot to say about how color affects our mood and behavior, but it's not as cut and dry as it may sound.

No matter how full you are, it seems you can find room for dessert. It’s not your imagination, and once you understand why, you’ll see how you can use this weird quirk of your appetite to your advantage!

Can holding your pee be bad for you? Learn about your bladder in this Quick Question with Michael Aranda!

Cancer usually begins with one tumor in a specific area of the body. But if the tumor is not removed, cancer has the ability to spread to nearby organs as well as places far away from the origin, like the brain. How does cancer move to...