Ever wondered who would win in a fight between a python and an alligator? What about a wolf versus a puma? SciShow has the answers. <b<br/>r/>

Hosted by: Hank Green (he/him)

The Inca Empire used bundles of knotted string called khipu to store and convey information. But how do you read a bunch of strings? And was this a unique form of writing... or knot?<b<br/>r/>

Hosted by: Stefan Chin

On their opening weekend in March 2025, the New York Yankees hit 15 home runs. And the so-called torpedo bats they used to do it have real science behind them, thanks to MIT physicist Aaron Leanhardt. But how good are they really? In...

You've heard of fake purses, and fake food, and fake concert tickets. But fake fossils? Turns out forging evidence of life in the ancient past isn't as uncommon as you might think. From another work by the infamous forger of the...

Space travel is infamous for the effects it can have on the human body. But some of those effects are a little more unusual than others. For example, if you ever had mono or chicken pox, it can reawaken those viruses that have been...

There's a hallucinogenic drug called ibogaine that some proponents say is the magic bullet for curing opioid addiction, sometimes in a single dose. But, it's illegal in a ton of countries. So let's talk about ibogaine, where it comes...

Nicotine is so addictive that most people who try to quit are not successful at first. So to up your chances of success, here's the data behind which methods are most effective, plus some cool ways you might be able to quit in the...

What was the biggest volcanic eruption of all time? Was it a huge explosion like Mt. Tambora? Not even close. In this episode, SciShow takes on the biggest volcanic eruptions to ever happen.<b<br/>r/>

Hosted by: Savannah Geary (they/them)

You may think of particle accelerators as massive underground tunnels like the Large Hadron Collider. But a new generation of accelerators are small enough to fit on a coin. Now the challenge is making them useful.
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You've heard of Stonehenge. It's that big rock circle over in England. But there's a lot more to it than that, and researchers have been studying it for centuries. From the people who lived near it to how and when it was made, here are...

China's Red Beach is a stunningly beautiful tourist destination. But the plants that make Red Beach red are hiding a secret -- one that could save other wetlands, if we can save this one first. <br<br/>/>

Hosted by: Stefan Chin (he/him)

It's not just fictional sitcom characters who struggle with navigating an oversized sofa around a tight corner. Mathematicians have their own version of the problem, and have spent the last six decades trying to not just find the...

Weather may be something you associate with life on land, but the ocean has its own version of fronts and storms. <b<br/>r/>

Hosted by: Jaida Elcock (she/her)

There's a lot of humans on our planet. But our global domination was hardly a given. New evidence suggests that our ancestors were on the brink of total extinction nearly a million years ago. So let's talk about that time when the Homo...

Whether someone's running for President or to be on their school board, there's a lot that a politician has to do to try to sway voters. But did you know that what name they use is on that list? Research shows that whether you choose...

Dams are great for humans, providing hydroelectricity and flood control. They're also horrible for the rivers they block. Here are three success stories of ecosystems that bounced back after a dam was removed.



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One of game theory's most famous quandaries is the Tragedy of the Commons. But, through her years of research, Nobel Prize winner, Elinor Ostrom, showed us that we're not doomed to tragedy after all.



Hosted by: Stefan Chin...

China's Zhangye Danxia National Geopark is home to strikingly beautiful rainbow mountains -- yes, what you're seeing is real! But the secret to this amazing sight might be something incredibly humble: dirt.



Hosted by: Stefan...

If someone (say, a small child) asks you why the sky is blue, you might dive into an explanation of Rayleigh scattering. But if you want to give them a way cooler explanation, you can tell them it's because of bacteria.



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When ITER's tokamak finally comes online (as of July 2024, that's 2034 for its first round of research, and 2039 for deuterium-tritium fusion), it will become the world's biggest fusion reactor. But don't hold your breath for a green...

From steam engines, to contact lenses, to biometric security based on someone's voice, there are a lot of inventions out there that are older than you think.<b<br/>r/>

Hosted by: Hank Green (he/him)

Today we're talking about the weirdest trees in the world, from the psychedelic rainbow eucalyptus, to the dragon's blood tree, to the jabuticaba that grows delicious fruits on its trunk.<b<br/>r/>

Hosted by: Hank Green (he/him)

There's a growing trend out there among users of hallucinogenic drugs - microdosing. The idea is to take a tiny dose of these drugs to get certain brain benefits without going all Sergeant Pepper. But does it work? Let's get into what...

The Vikings were renowned navigators at a time before magnetic compasses were invented. So how'd they manage it? Their secret may have been these pretty-pointed crystals of calcite called Iceland spar, and this month's SciShow Rocks...