From a single-celled common ancestor, evolution has brought us all of Life’s Greatest Hits — including butterflies, beetles, bacteria, and human beings. In this episode of Crash Course Biology, we’ll learn how evolution explains life’s...

Charles Darwin introduced the notion of “survival of the fittest,” where the fittest animals are those who can survive long enough to produce healthy offspring. The fittest animal can also be the most stealthy, resourceful, or even the...

Ragnarok has been raging for far too long; many gods and heroes have fallen, and the rest can barely stand. Loki, his bright eyes dimmed by exhaustion, asks to meet. He proposes that you and he settle the conflict with a game atop a...

How to Find an Exoplanet

This video is about the famous 'Twins paradox' of special relativity, how time can appear to be faster for two different observers at the same time, and which twin really is older (or younger) - the one who stays on earth or the one who...

A Polarizing Discovery About the Big Bang!

Why Do We Have More Boys Than Girls

How do we know what the air is like on planets we haven't visited? This video explains how to see air from 150 light years away. Thanks to NASA's James Webb Space Telescope project at the Space Telescope Science Institute for supporting...

Could rock music one day replace your insulin injections? Scientists are pioneering music-controlled cells that could provide the perfect dose of insulin for type 1 or type 2 diabetes with just a bit of music. Specifically, Queen's "We...

You may be familiar with plants that have hair, like fuzzy peaches. But these plant take their 'dos to the next level, because their hairs are deadly.

Occultations may sound spooky, but in actuality they can inform us of some of the most unknown parts of the universe.

You may have heard of "abortion pills" - here's what these medications are and what they do (and don't do).

This video is about what happens if you try to pass a portal (like in the video game Portal or Portal 2) through itself - do you get a paradox? Infinite recursion? Impossibility? Contradiction? The end of the world? Collapse of the...

The Solution to the Windmill Paradox. This video is about the tradeoff of Windmills: the fact that the more kinetic energy you extract from the wind the slower the wind goes, the less wind you have to extract energy from, etc. How much...

One Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in one minute!

Do you like drinking milk or chatting with your friends? Well, you can enjoy those because of the evolution happened over the past million years, and we are still evolving. Let's find out what will we be like in the future with us!

They live in the water, but do they actually drink it? Turns out, some fish actually do! Learn all about how different kinds of fish get the fresh water that they need to survive in this new episode of SciShow!

Improving batteries is a tough problem, but it’s also an important one because in many ways the future of our planet also depends on the future of batteries. Luckily, scientists are on the case, figuring out ways to give this essential...

Why do exams always tell you to use a number 2 pencil? What happens if you don’t? Quick Questions explains!

Some bacteria seem to be using a type of memory to help them alter future behaviors, based on their past experiences.

We've found a microbe that might someday protect us from malaria parasites, and bees might have help with their jobs soon, thanks to bubble pollination!

Long lines, metal detectors and pat downs are a common staple of the airport process. But are these security measures actually efficient and effective? Join Michael Aranda for a new episode of SciShow where he breaks down the science of...

Everybody poops ... but is it possible that you're pooping all wrong? Learn the science behind the greatest debate of our time: squat vs. sit! Thanks to Patreon Patron Maia for asking this important question!

When Boris Pasternak finished his novel ÐDr. ZhivagoÓ in 1956, Soviet authorities refused to publish the tale of an individuals struggle amid the Russian Revolution. A new book, ÐThe Zhivago Affair,Ó tells the story of how...