SciShow
Can Your Environment Affect Your DNA? | Epigenetics Explained
Did you know that your environment and lived experiences can actually affect your DNA? Welcome to the world of epigenetics! In this fun episode of SciShow, Hank & his clone Circus Hank explain the power of epigenetics, which studies the...
SciShow
How Tongues Helped Vertebrates Conquer Land
You might not think much of your tongue, but without it, we may have never conquered dry land and the world as we know it.
SciShow
Where Do Our Facial Expressions Come From?
Our facial expressions convey a lot about our emotions, but why? Hank explores how our evolution has helped form how we communicate with our faces. Hosted by: Hank Green
SciShow
Why You Should Never Put Tomatoes in the Fridge!
Without refrigerators, we'd have spoiled milk, moldy cheese, and warm sodas. However, there are some foods that don't fare so well in a chilly fridge, including tomatoes. Hosted by: Olivia Gordon
SciShow
Why Lizards Don't Run Marathons
Lizards tend to scurry around in short bursts rather than running long distances, and the reason why might be nearly as old as life on land. Hosted by: Stefan Chin
SciShow
Why Is It so Hard to Swat a Fly?
Flies are evasive buzzing machines that make it nearly impossible to swat. Luckily, science has some explanation to help you predict their next move. Hosted by: Stefan Chin
SciShow
Why Are There Righties & Lefties?
About 10% of the world population is left-handed. But why does handedness exist and what determines which hand is dominant? Scientists have suggested several theories, but the answer may well lie with evolution.
SciShow
3 Extreme Ways Trees Survive the Winter
Animals have all kinds of adaptations to help them get through winter, from hibernation to boots and hats. But trees have to make it through the coldest months of the year alive, too, and they've developed some pretty extreme ways to do it!
SciShow
Why Humans May Actually Be Fish
Is there a chance that more species may actually be closer to fish than we originally thought?
SciShow
Why Do We Jump in Our Sleep?
Learn why you may experience jumping in your sleep, and how you can prevent it!
SciShow
When Two Species Mix
We often think of categories as fixed, with a species being a species no matter what. The thing is, life doesn’t have to follow our rules.
TED-Ed
TED-Ed: Why do we have crooked teeth when our ancestors didn't? | G. Richard Scott
According to the fossil record, ancient humans usually had straight teeth, complete with wisdom teeth. In fact, the dental dilemmas that fuel the demand for braces and wisdom teeth extractions today appear to be recent developments. So,...
TED Talks
TED: Nature, art and magical blocks of flying concrete | Lonneke Gordijn
Our bodies instinctually respond to the movements and rhythms of nature, like the uplifting feeling you get when walking in a forest. Can art evoke the same emotions? Experiential artist Lonneke Gordijn takes us through her studio's...
TED-Ed
TED-Ed: Seeing things that aren't there? It's pareidolia | Susan G. Wardle
Imagine opening a bag of chips, only to find Santa Claus looking back at you. Or turning a corner to see a building smiling at you. Humans see faces in all kinds of mundane objects, but these faces aren't real— they're illusions due to a...
TED-Ed
TED-Ed: How does this all-female species reproduce? | Susan Freitas and Darren Parker
In 2021, workers at a Sardinian aquarium were stunned by the birth of a smooth-hound shark. What was shocking was that, for the last decade, the shark's mother had been living only with other females. So, how was this birth possible? And...
Bozeman Science
Bioenergetics
Paul Andersen introduces the concept of bioenergetics. He explains how living organisms utilize free energy in the Universe. He begins with a brief discussion of thermodynamics and Gibbs free energy. He then explains how reactions can be...
Be Smart
Why Are There Still Monkeys? - 12 Days of Evolution #10
Some of the biggest evolution questions finally answered.
PBS
Why Quantum Information is Never Destroyed
If you have perfect knowledge of every single particle in the universe, can you use the laws of physics to rewind all the way back to the Big Bang? Is the entire history of the universe perfectly knowable? Or has information somehow lost...
Bozeman Science
Teaching Evolution is Not Optional
Paul Andersen teams up with Keith Hughes to explain why teaching evolution is not optional for high school biology teachers.
SciShow
Cockroaches, Alligators & Other Weird Sources of New Drugs
Some of humanity’s favorite antibiotics are starting to lose their mojo, in the face of smart, sneaky, and rapidly-evolving bacteria. To find new drugs to combat these superbugs, scientists are looking in some weird new places, like...
Crash Course
The Evolutionary Epic Crash Course Big History 5
In which John Green, Hank Green, and Emily Graslie teach you about evolution. So, in the last 3.8 billion years, life on Earth has evolved from single-celled prokaryotes to the dizzying array of life we have today. So how did all this...
Crash Course
Keyboards & Command Line Interfaces: Crash Course Computer Science
Today, we are going to start our discussion on user experience. We've talked a lot in this series about how computers move data around within the computer, but not so much about our role in the process. So today, we're going to look at...
TED-Ed
TED-Ed: Five fingers of evolution - Paul Andersen
How can a "thumbs up" sign help us remember five processes that impact evolution? The story of the Five Fingers of Evolution gives us a clever way of understanding change in gene pools over time.
Bozeman Science
AP Biology Practice 2 - Using Mathematics Appropriately
Paul Andersen explains how to use mathematics appropriately. He begins by emphasizing the important role that mathematics plays in the life sciences today and in that the future. He describes important mathematical equations in each of...