Living in a cave isn’t easy, but these six cave-dwelling animals have gained some amazing traits to help them survive there!

The sounds we hear every day really do have effects on our health. Not just our ears, but our hearts and even our brains.

The Greek philosopher Aristotle used sensory experiences and body parts to propose that humans have five senses. But almost as soon as he proposed them, people noticed things that didn’t fit the bill. And the debate has continued ever...

Plot often trumps reality when portraying space in movies and, as a result, many films are full of inaccuracies. So how much fiction is actually written into some of our favorite movies? Movies mentioned (and potentially spoiled) in this...

We owe a lot to our moon. Beautiful moonlit walks, higher tides, and regular seasons - all are made possible by our little rocky friend. But what would happen if we picked up a second moon?

The standard story of the Scientific Revolution culminates with the long life of one man: Sir Isaac Newton—a humble servant of the Royal Mint, two-time parliamentarian, and a scientific titan whose name, along with Einstein’s, is...

You’re having a dream, and for some reason that giant rabbit that’s about to eat you starts to sing like a bird. You wake up to find that birds are singing outside your window! Check out this SciShow Quick Question to find out why those...

Guitar masters like Jimi Hendrix are capable of bending the physics of waves to their wills, plucking melody from inspiration and vibration. But how do wood, metal, and plastic translate into rhythm, melody, and music? Oscar Fernando...

n 10 episodes John Green, Hank Green, and Emily Graslie teach you about, well, everything. It’s Big History! This course will take you on a whirlwind journey from the creation to the death of the universe and is based on the Big History...

Why is it that humans react to stimuli with certain behaviors? Can behaviors change in response to consequences? Peggy Andover explains how the brain can associate unrelated stimuli and responses, proved by Ivan Pavlov's famous 1890...

I'm sure you've heard of Pavlov's Bell (and I'm not talking about the Aimee Mann song), but what was Ivan Pavlov up to, exactly? And how are our brains trained? And what is a "Skinner Box"? All those questions and more are answered in...

Have you ever put a seashell up to your ear and heard a roaring sound the sounds sort of like the ocean? Is it magic? No! It's science! Jessi and Squeaks explain what's up!

Learn all about how sound works with Jessi and Squeaks on SciShow Kids!

In this video Paul Andersen compares and contrasts mechanical and electromagnetic waves. Both types of waves transfer energy through oscillations but mechanical waves requires a medium. Several examples of each type of wave are included.

At TEDYouth 2011, performance artist Carvens Lissaint shows how to use language, metaphor and imagery to express a powerful idea -- as in this spoken-word performance, a stirring plea to make college education more accessible.

In which John Green teaches you about Charlotte Bronte's classic coming of age novel, Jane Eyre. Look, we don't like to make judgement values here, but Jane Eyre is awesome. By which we mean the book is great, and the character is...

With candor and cunning, sex historian Kate Lister chronicles the curious journey of an ancient, honest word with innocent origins and a now-scandalous connotation in this uproarious love letter to etymology, queens, cows and all things...

Why are sounds scary? They're just vibrations. Blame your brain.

In our louder and louder world, says sound expert Julian Treasure, "We are losing our listening." In this short, fascinating talk, Treasure shares five ways to re-tune your ears for conscious listening -- to other people and the world...

using examples from birdsong, the natural lilt of emphatic language and even a cooking pan lid, singer-songwriter and TED Fellow Meklit Hadero shows how the everyday soundscape, even silence, makes music. "The world is alive with musical...

The point of fiction is to cast a spell, a momentary illusion that you are living in the world of the story. But as a writer, how do you suck your readers into your stories in this way? Nalo Hopkinson shares some tips for how to use...

Many modern musical instruments are complicated pieces of machinery with many moving parts. But the cajon is simply a drum and a stand and a seat all in one box. Paul Jennings explains the history behind the cajon and how it has become...

Light, bright, and cheerful, "The Four Seasons" by Antonio Vivaldi is some of the most familiar of all early 18th century music, featured in numerous films and television commercials. But what is its significance, and why does it sound...

How can simple sound waves cause so much emotion? I went from my comfy chair to the streets of Austin to investigate how it might be written into our neuroscience and evolution. Modern neuroscience says our brains may be wired to pick...