SciShow
This Flatworm Remembers Things After You Cut Off Its Brain
Planarians are flatworms most known for being able to grow a new head if it gets cut off, but perhaps even stranger is the fact that their new head retains some of the memories from the old one.
SciShow
What Are Eyeballs Made Of?
Eyeballs are unique organs, providing many animals with the ability to interpret the light waves in the world around them, but what are these squishy parts made of?
SciShow
Why Scientists are Giving Robots Human Muscles
Human-robot hybrids are advancing quickly, but the applications aren't just for complete synthetic humans. There's a lot we can learn about ourselves in the process.
TED-Ed
TED-Ed: Why plague doctors wore beaked masks | TED-Ed
The year is 1656. Your body is wracked by violent chills. Your head pounds and you're too weak to sit up. In your feverish state, you see a strange-looking man wearing a beak-like mask, his body covered from head to toe. Without seeing...
TED Talks
Marc Bamuthi Joseph: "You Have the Rite"
In a breathtaking, jazz-inflected spoken-word performance, TED Fellow Marc Bamuthi Joseph shares a Black father's tender and wrenching internal reflection on the pride and terror of seeing his son enter adulthood.
TED Talks
TED: How I built a jet suit | Richard Browning
We've all dreamed of flying -- but for Richard Browning, flight is an obsession. He's built an Iron Man-like suit that leans on an elegant collaboration of mind, body and technology, bringing science fiction dreams a little closer to...
TED-Ed
TED-Ed: Why are sloths so slow? - Kenny Coogan
Sloths spend most of their time eating, resting, or sleeping; in fact, they descend from their treetops canopies just once a week, for a bathroom break. How are these creatures so low energy? Kenny Coogan describes the physical and...
SciShow
What If Your Arm Falls Off Right After a Vaccine?
If you lost your arm almost immediately after being vaccinated, would you still be vaccinated?
SciShow
Behold—Poisonous Snakes! (Yes, You Read That Right)
While it’s true that most snakes aren’t considered poisonous, there definitely are poisonous snakes, with poison for their predators and venom for their prey.
SciShow
What Causes Brain Freeze?
That terrible pain the befalls us when enjoying an icy treat! How does that happen? Is there a cure? Let Hank explain.
SciShow
7 of Australia's Most Terrifying Inhabitants
If you've spent any time on the internet, you know that Australia is host to all sorts of horrible spiders and snakes. But that doesn't even begin to cover the myriad of dangerous, sometimes deadly, plants and animals you might encounter...
Amoeba Sisters
Digestive System
Join the Amoeba Sisters for a brief tour through the human digestive system! This video will address major structures and functions including the esophagus, stomach, small intestine, and large intestine. This video also mentions chemical...
SciShow
When Everything Feels Like a Dream | Depersonalization-Derealization Disorder
It's not rare to feel like we're dreaming, even right after we wake up, but when it sticks around for longer than it should, it can merit its own diagnosis: depersonalization-derealization disorder (DDD). Hank unpacks what this disorder...
Amoeba Sisters
Integumentary System
Join the Amoeba Sisters on this introduction to the Integumentary System! This video first introduces the important functions of this system. Then, this video takes a general tour through the epidermis (and each stratum of the...
TED Talks
Lucy McRae: How can technology transform the human body?
TED Fellow Lucy McRae is a body architect -- she imagines ways to merge biology and technology in our own bodies. In this visually stunning talk, she shows her work, from clothes that recreate the body's insides for a music video with...
TED-Ed
TED-Ed: What happens to our bodies after we die? - Farnaz Khatibi Jafari
Since the dawn of humanity, an estimated 100.8 billion people have lived and died, a number that increases by about 0.8% of the world's population each year. What happens to all of those peoples' bodies after they die? And will the...
SciShow
Toxoplasmosis: How Parasites in Your Cat Can Infect Your Brain
"Crazy cat lady" stereotypes or not, there could be some actual psychological risks from hanging around so many kitties if just one of them is harboring the parasite Toxoplasma gondii.
SciShow
What We Do With Dead Bodies
Everyone dies, but what do we do with those bodies? In this episode of SciShow, Hank explores the various options, from mummification to liquefaction, and everything in between.
SciShow
How Close Can You Get To The Sun?
How close could you get to the sun using today's spacesuits or spaceships? Find out in today's episode of SciShow Space!
SciShow Kids
Why Do I Have Freckles?
Do you know anyone with freckles? Maybe you have freckles yourself! Jessi has them, and she's been wondering what they are, where they come from, and why some people have them and some people don't!
TED Talks
Martin Pistorius: How my mind came back to life — and no one knew
Imagine being unable to say, "I am hungry," "I am in pain," "thank you," or "I love you,” -- losing your ability to communicate, being trapped inside your body, surrounded by people yet utterly alone. For 13 long years, that was Martin...
TED Talks
Talithia Williams: Own your body's data
The new breed of high-tech self-monitors (measuring heartrate, sleep, steps per day) might seem targeted at competitive athletes. But Talithia Williams, a statistician, makes a compelling case that all of us should be measuring and...
SciShow
7 of the Most Uniquely Fierce Sharks
Sharks come in a lot of different shapes and sizes and many of them don't look like the ones you see in movies. Here are seven sharks that went down some decidedly strange evolutionary paths.
SciShow
Why Does Getting Kicked in the Groin Hurt SO Much?
Getting kicked anywhere hurts, but getting kicked in the groin REALLY hurts for a few different reasons.