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,...

Today, the Great Salt Lake of Utah has multiples of the ocean's salt concentration. But it didn't used to be so salty. In fact, it used to be Lake Bonneville. And we know its story thanks to microscopic diatoms and Dr. Ruth...

We've been using lab rats for over a hundred years, and they've been part of some of the biggest medical breakthroughs ever. But what comes next? From organs on a chip to computer simulations, here are some of the ways that science...

People have been making the connection between the moon's phases and the menstrual cycle for centuries. But when it comes to controlling periods, we may have been looking at the wrong thing in the sky.



Hosted by: @NotesByNiba...

You've heard of Pompeii and the volcano that wiped it out, but how much do you REALLY know about this incredibly famous place? Turns out there are a lot of mysteries that researchers are still studying, from the timing and causes of...

Life in Antarctica's ocean has followed a completely different evolutionary path from other ocean life because of how cold and isolated the ocean is.

The moon orbits the earth once per month, which means the moon is on the sun side of the earth every month. So... "why aren't there eclipses every month?" is a question we will answer in this video!

Why does losing weight often feel like an uphill battle? Physician Katherine Saunders unpacks how our bodies are wired to store fat, revealing that obesity isn’t simply a lack of willpower — it’s a complex, chronic disease rooted in...

Why The Full Moon is Better in Winter

Have you ever wondered why leaves are green and not red, blue, or even black? We did too!

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.

Synapsids were the world’s first-ever terrestrial megafauna but the vast majority of these giants were doomed to extinction. However some lived on, keeping a low profile among the dinosaurs. And now our world is the way it is because of...

At Tanque Loma, at least 22 giant ground sloths in the genus Eremotherium met their end. Of the five hypotheses that researchers proposed for what killed the sloths, the best supported one right now is that they died surrounded by their...

How did seahorses — one of the ocean’s worst swimmers — spread around the globe? And where did they come from in the first place?

Comic book heroes ain't got nothin' on evolution.

Why does everyone use a 7 day week, and where did it come from? Where do the names of the days come from? And who can we blame for Mondays? Here’s the true story of one of the oldest human customs still in use today. It gets a little...

Air. I bet you never even notice that it’s there. Yet you are swimming in an ocean of it every day. If there’s a literal ton of air pressing down on you all the time, so why don’t we feel it? We look back at the history of physics to...

If you’re trying to figure out where to plan on sheltering during the zombie apocalypse, it’s essential to know whether zombies sink or float!

Scientists have discovered an underground lake of liquid water on Mars! While this isn’t itself evidence for life on Mars, it does raise some new possibilities.

Sometimes, plants do unexpected things. Like control their own body temperature.

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...

When humans build a city, most species in the area tend to disappear. But there are some, called synurbic species, that are living their best lives in our concrete jungles. Hosted by: Stefan Chin

You've seen your fruit get moldy, or maybe your bread products. Sometimes old meat gets a funky smell. But what is actually happening scientifically when your food goes bad? It's pretty interesting. Join Hank Green for a new episode of...

Brit Garner is here to give Hank a breakdown of the May 2019 preview of the IPBES report, and Jessi from Animal Wonders brings along Kizmit, the African Crested Porcupine.