TED Talks
Marlene Zuk: What we learn from insects' sex lives
In this enlightening, funny talk, Marlene Zuk shares just some of the ways that insects are truly astonishing -- and not least for the creative ways they have sex.
TED Talks
TED: Your fingerprints reveal more than you think | Simona Francese
* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences. Our fingerprints are what make us unique -- but they're also home to a world of information hidden in molecules...
Be Smart
Why Your Brain Is In Your Head
Part 1 of 3 in my series about why our bodies are shaped the way they are.
SciShow
Why You Should Care About the Plastic in Your Poop
A recent study has concluded that people all over the world are probably ingesting microscopic plastic all the time. Now scientists want to know where this plastic is coming from, how it ends up inside of us, and the damage it could do...
SciShow Kids
Why Do Animals Have Whiskers? | Amazing Animal Senses | SciShow Kids
Squeaks and Mister Brown are learning about senses! Did you know that animals that have whiskers can use them to sense things? First Grade Next Generation Science Standards Crosscutting Concept: Structure and Function: The way an object...
SciShow Kids
Why Does Water Hurt My Nose?
There's nothing better than going for a swim on a hot summer day! Sometimes, though, when you jump in the water, you might get a whole bunch of it up your nose! It's no fun, but why exactly does it hurt so much?
SciShow Kids
Going to the Doctor's Office with Dr. Aaron Carroll
Squeaks has a doctor's appointment coming up and he's a little nervous, so Jessi asked her friend Dr. Arron Carroll to come over and talk about what happens when you visit the doctor!
TED Talks
Marc Pachter: The art of the interview
Marc Pachter has conducted live interviews with some of the most intriguing characters in recent American history as part of a remarkable series created for the Smithsonian's National Portrait Gallery. He reveals the secret to a great...
SciShow
Why Is Heart Cancer So Rare?
Why don't we hear about people getting heart cancer? Turns out that some types of cells are less susceptible to cancer than others.
TED Talks
TED: This gel can make you stop bleeding instantly | Joe Landolina
Forget stitches -- there's a better way to close wounds. In this talk, TED Fellow Joe Landolina talks about his invention -- a medical gel that can instantly stop traumatic bleeding without the need to apply pressure. (Contains medical...
SciShow
When You Have Cancer, But You're Fine Cancer Overdiagnosis
Studies suggest that if you made full-body scans part of your regular routine, you’d find a bunch of cancers over the years, but it wouldn't change your odds of having a life-threatening cancer. This is mostly because our definition of...
SciShow
Why Do Spiders Curl Up When They Die?
When spiders die, their tiny legs curl up tight against their body, because spiders don’t use muscles to extend their legs. Instead, they have hydraulic legs!
SciShow
Hacking the Brain: The Future of Prosthetics
We usually think of 'hacking' as a bad thing, but scientists are working on ways to hack the brain that will greatly benefit people with prosthetics, and maybe someday people with paralysis.
SciShow
Sphincters - The Fascinating Truth
Sphincters -- they're not just for butts! Hank explains the fascinating truth about these magic rings of muscle, where they appear in the human body and the pretty fantastic functions they perform in the animal kingdom.
SciShow
Prelude to a Revolution | Antibodies Series Part 1
You may have heard a lot of talk about antibodies lately, especially in relation to vaccines. We wanted to tackle this important subject, but these tiny objects are deceptively complex! So, this is the first of three episodes in a...
Bozeman Science
The Hierarchy of Life
Paul Andersen explains how biology is ordered in the hierarchy of life. He first of all describes how emergent properties appear as you move to more inclusive systems. The then describes life at the following levels; atom, molecule,...
SciShow
The Secret Ingredient in Ruminant Spit
Every day, humans literally flush a valuable resource down the toilet: nitrogen. But there are some animals that have figured out a way to recycle the extra nitrogen in their bodies by moving it not to their livers, but to their mouths!
TED-Ed
TED-ED: What is leukemia? - Danilo Allegra and Dania Puggioni
Stem cells found in the bone marrow are crucial for our health because they are needed to become new blood cells that sustain and protect our bodies. But when the transformation goes wrong, harmful mutations can cause the cells to start...
SciShow
Why Did You Skip a Period?
Have you had a normal menstrual cycle and then you suddenly miss a period? There are different reasons why this can happen, and if you don't experience a period you were expecting, you’ll probably want to talk to your health care...
TED-Ed
TED-ED: Why are fish fish-shaped? - Lauren Sallan
In tropical seas, flying fish leap out of the water, gliding for up to 200 meters, before dipping back into the sea. In the Indo-Pacific, a hunting sailfish swims up to 110 kilometers per hour. These feats are made possible by a fish's...
SciShow Kids
Why Don’t Haircuts Hurt?
Jessi is getting a haircut later, but what makes it so that your hair doesn't hurt when you go to get it cut?
SciShow
The Nearsightedness Epidemic
While not the kind of epidemic you're used to hearing about, nearsightedness is becoming a major health issue in many places. Learn about how scientists are finding out the reasons behind the increase in myopia, and how sunlight might be...
TED-Ed
TED-Ed: What does the liver do? - Emma Bryce
There's a factory inside you that weighs about 1.4 kilograms and runs for 24 hours a day. It's your liver: the heaviest organ in your body, which simultaneously acts as a storehouse, a manufacturing hub, and a processing plant. Emma...
TED Talks
TED: Hack a banana, make a keyboard! | Jay Silver
Why can't two slices of pizza be used as a slide clicker? Why shouldn't you make music with ketchup? In this charming talk, inventor Jay Silver talks about the urge to play with the world around you. He shares some of his messiest...