BrainStuff

Seawater is salty because of several quirks in Earth's water cycle. Learn the reasons why in this classic episode of BrainStuff, based on this article:...

Trying potential medical treatments on animals was once the best that science could do, but new technologies could make animal testing obsolete. Learn how in this classic episode of BrainStuff,...

It takes a particular kind of person to go from average citizen to amateur spy. Learn what history and psychology have taught us in this episode of BrainStuff, based on this article:...

These large, leggy birds can run fast and make friends faster. Learn more about them in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/mammals/emu.htm Learn...

Herd immunity can help keep a population healthier, but achieving it can be difficult. Learn about vaccines and vaccination reluctance in this episode of BrainStuff, based on this article:...

In the 1850s, Oregon voted to outlaw slavery in their state -- but also to outlaw free Black people from living there. Learn more in this episode of BrainStuff, based on this article:...

Some fish that strut the seafloor share a common ancestor with humans, so researchers are hoping that studying these fish could help us understand how we walk. Learn how in this classic episode of...

Any high-tech car feature that takes your attention away from the road is a distraction, but are even our automatic safety systems making driving more dangerous? We explore in this classic episode...

Rumor has it that Lucille Ball once picked up a spy's radio signal with her fillings -- but could it be true? Learn more in this episode of BrainStuff, based on this article:...

Different kinds of spiders build all sorts of different webs, from beautiful bug-catchers to protective egg sacs to clever trap doors. Learn about them in this episode of BrainStuff, based on this...

Showering first thing or last thing in your day is largely a personal preference, but a few factors might sway you one way or the other. Learn more in this episode of BrainStuff, based on this...

One of the results of burning coal to produce energy is the creation of coal ash, a toxic product that can wreak havoc when it spills into nearby ecosystems. Learn more in this episode of...

Once a year, the U.S. government can use a process called reconciliation to fast-track big budget legislation through Congress. Learn how it works in this episode of BrainStuff, based on this...

Snot is a crucial part of our immune system, and boogers are a byproduct of that system. Learn how they form (plus, why eating them might be advantageous) in this classic episode of BrainStuff,...

A sea turtle's sex is determined by the temperature where it hatches, and the Great Barrier Reef is warmer than ever before. Learn what this could mean in today's classic episode of BrainStuff,...

Chromosomes contain the DNA that codes our very existence, and most people have 23 pairs. Learn how they work in this episode of BrainStuff, based on this article:...

In the early 1800s, a set of newspaper articles had people across America believing a civilization had been found on the moon. Learn how it happened in this episode of BrainStuff, based on this...

This characteristically chill, friendly animal is the largest rodent in the world. Learn more about the capybara in this episode of BrainStuff, based on this article:...

Tabasco brand hot sauce is the most popular in the U.S., and it's been made pretty much the same way for 150 years. Learn more in this episode of BrainStuff, based on this article:...

In the early 1900s, Australian doctor Jean Macnamara helped the world learn how polio works -- and helped patients rehabilitate. Learn more in this episode of BrainStuff, based on this article:...