Channel Videos from SciShow

Why Don't All Birds Fly in V Shapes?
64,396 views - 11/12/19
Some birds fly in V shapes because it has many benefits, but other birds fly in clumps instead. Why would they do that? Hosted by: Hank...
What Your Family History Can’t Tell You
83,689 views - 11/11/19
Thanks to the National Human Genome Research Institute for supporting this episode. If you’re interested in learning more about the human...
6 of the Coolest Things We've Found in Amber
353,048 views - 11/10/19
Amber is amazing stuff! It can preserve organisms whole, and essentially freeze them in time, and the specimens we’ve found in it so far...
Carnivorous Sponges — So That's a Thing
117,635 views - 11/09/19
There aren't many creatures as safe and chill as the humble sea sponge, right? Well, not so fast! It turns out there's a whole family of...
New Cystic Fibrosis Treatment a Game-Changer | SciShow News
137,179 views - 11/08/19
A new drug treatment based on a genetics discovery from the 80s could dramatically improve the lives of many people with Cystic Fibrosis...
The Freezing Dunes of Northern Canada
154,231 views - 11/07/19
Go to to start streaming Small Cats Unknown. Use the promo code ‘scishow’ during the sign-up...
We're Running Out of These Elements — Here's How
383,170 views - 11/06/19
Phones, TVs, solar panels, and electric car batteries are all made of some rare and unusual elements. As our modern world creates more...
What If Earth Picked Up a Second Moon?
160,778 views - 11/05/19
Thanks to Oribel for sponsoring this episode. Go to and use code “SCISHOW15” for 15% off on your wall toy...
Poor, Misunderstood Poison Ivy
244,546 views - 11/04/19
It sure seems like some plants really don't want you hiking through their woods, but maybe your immune system is just overreacting....
5 Things We Still Get Wrong About Human Reproduction
356,487 views - 11/03/19
You'd think we'd know everything there is to know about sexual reproduction. But as it turns out, there are still quite a few things we...
How Much Data Can Our Brains Store?
145,176 views - 11/02/19
Our brains aren't exactly like a computer's hard drive, but it can still be fun to think about just how much storage space we have in our...
New Cancer Drug Results and Vampire Bat Friendships
73,777 views - 11/01/19
This week, researchers announced a novel cancer drug has become the first of its kind to reach clinical trials. Also, new research into...
That’s Probably Not a Spider Bite
231,422 views - 10/31/19
Unless you saw the spider bite you, that swollen, bite-looking lesion on your arm is probably something else, and blaming it on an...
Your Cat Questions Answered! | Compilation
225,614 views - 10/30/19
The kitties we let into our homes and hearts can have some strange and endearing behaviors, and we've made a fur-midable number of...
Carcolepsy: Why Do We Get Sleepy in Cars?
168,409 views - 10/29/19
Thanks to for sponsoring this episode. Head to to see all of’s team...
Could a Vaccine Prevent Type 1 Diabetes?
83,659 views - 10/28/19
Measles, mumps, and polio are things we can prevent with vaccines, but scientists are looking to add a surprising entry to that list:...
6 Reasons We Have to Say a Study Was In Mice
142,833 views - 10/27/19
A lot of our videos include the disclaimer "Mice aren't people." But why do we keep saying this, and if rodent studies aren't effective,...
Why Do Corgi Mixes Always Look Like Corgis?
176,917 views - 10/26/19
Go to to try out Brilliant’s Daily Challenges. The first 200 subscribers get 20% off an annual Premium...
Loudest Bird in the World Screams at its Mate | SciShow News
125,802 views - 10/26/19
Go to to try their 60+ courses in math, computer science, and scientific thinking. The first 200 subscribers...
Terrific Trees: A SciShow #TeamTrees Compilation
102,813 views - 10/25/19
From the Avocado to Pando, we love trees! They do so much for us, from making oxygen so we can breathe, to cooling urban environments, to...
I Can't Believe It's Not Wood
167,143 views - 10/24/19
Go to to try their 60+ courses in math, computer science, and scientific thinking. The first 200 subscribers...
Why Do Humans Like to Get High?
557,972 views - 10/24/19
Go to to try their 60+ courses in math, computer science, and scientific thinking. The first 200 subscribers...
How Big Can Black Holes Grow?
194,807 views - 10/22/19
Go to to try their 60+ course in math, computer science, and scientific thinking. The first 200 subscribers...
How We Could Prevent a Global Rice Shortage
142,096 views - 10/21/19
Go to to try their Artificial Neural Networks course. The first 200 subscribers get 20% off an annual...
6 Seriously Impressive Animal Migrations
82,566 views - 10/20/19
Go to to try their Scientific Thinking course. The first 200 subscribers get 20% off an annual Premium...
Firehawks: Nature's Arsonists
206,179 views - 10/19/19
Go to to start streaming The History of Food. Use the promo code ‘scishow’ during the sign-up process...
Robots Can Have Skin Now | SciShow News
134,598 views - 10/18/19
Designing skin for robots was out of reach for a long time, but last week, scientists announced they successfully made the first...
Why We're So Bad at Recycling Plastic
177,026 views - 10/17/19
Plastic is quickly becoming a problem and we're eager to point fingers, but honestly, the reason there's so much plastic everywhere isn't...
Hank vs Aranda: The FINAL FACE-OFF | SciShow Quiz Show
72,777 views - 10/17/19
Two SciShow hosts go head-to-head in a battle to figure out who will be the reigning champion for this era of SciShow Quiz Show! Eons:...
Your Appendix Isn't Useless, After All
533,225 views - 10/15/19
Thanks to Squarespace for sponsoring this video. Go to for a free trial and when you’re ready to launch, go to...
Kale, Cauliflower, and Brussels Sprouts Are the Same Species
131,659 views - 10/14/19
Not to deter you from eating your vegetables, but what if we told you that certain parts of your salads, like kale, broccoli, and...
8 More Terrible Names for Living Things
178,261 views - 10/13/19
Sometimes, the common names we use for things are really confusing! Here are 8 living things with terrible names! Hosted by: Hank...
The Rainbow Gem Made from Ancient Sea Creatures
96,319 views - 10/12/19
Ammonite fossils can be found all over world, but in one place, something happened that turned their remains into rainbow-colored gems...
We Taught Birds to Sing by Altering Their Brains | SciShow News
63,998 views - 10/11/19
We can now implant memories into birds’ brains to teach them how to sing, and human fetuses have a couple muscles that disappeared from...
The Real Story of John Snow
107,535 views - 10/10/19
While you might hear the name John Snow and think of dragons and unfruitful endings. There was a real life physician whose efforts saved...
Do You Need 10,000 Steps a Day?
142,116 views - 10/09/19
Check out The Serengeti Rules, airing October 9th at 8pm ET on PBS, or at to learn how five pioneering...
The Universe As We Know It Shouldn't Exist | The Matter-Antimatter Problem
561,604 views - 10/08/19
The universe is a pretty grand place to live, but scientists have one issue with it, it's an anomaly that should be scientifically...
Why People are Always Fighting Over the Thermostat
170,700 views - 10/07/19
Negotiating thermostat settings can be really frustrating, but your officemate isn't trying to freeze you out on purpose. Stefan explains...
Things That Go Bump in Your Brain: 4 Scientific Explanations for Ghosts
207,156 views - 10/06/19
Wandering an old dark place at night sounds pretty scary, but you can take comfort in the fact that ghostly encounters can be explained...
Are Soft Cheeses Dangerous During Pregnancy?
120,794 views - 10/05/19
You may have heard the oddly specific advice that pregnant people shouldn't eat soft cheeses, but there's a very good reason for that,...
Our Oceans Aren’t Doomed… Yet? | SciShow News
109,717 views - 10/04/19
The IPCC has released a special report assessing how the world’s ice and oceans are faring under our changing climate, and scientists may...
To Study Ancient Humans, Archeologists Are Using... What?!
129,775 views - 10/03/19
When you think about archaeology, space technology probably isn’t the first thing that comes to mind. But from satellites to cosmic rays,...
6ish of Your Everyday Actions, Explained | Compilations
162,707 views - 10/02/19
The human body can have some odd, and sometimes gross, quirks. Like, why do we blush or laugh, especially when someone burps or farts?...
Are Antioxidants Actually Good for Anything?
132,277 views - 10/02/19
There's evidence that antioxidant-rich diets have health benefits in humans, but the antioxidant chemicals and enzymes seem to be only...
These Smart Roads Could Change the Future of Driving
134,349 views - 09/30/19
From self-healing asphalt to electrified roads, technology is steering the future of driving along some exciting new paths! Hosted by:...
Seriously, None of These Are Ants | 8 Ant Mimics
369,170 views - 09/29/19
Ants are practically everywhere, and some creatures have found it beneficial to blend in with this crowd rather than stick out. Hosted...
The Mystery of the Black Diamond
229,530 views - 09/28/19
There are still lots of unsolved mystery about carbonados ("black diamonds"), and geologists even think those mystery rocks come from...
North America's 3 Billion Lost Birds | SciShow News
92,316 views - 09/27/19
This week, an alarming report on North American bird populations and a sweet study on one of our more aloof furry companions. Hosted by:...
The Woman Who Changed Drug Development
72,245 views - 09/26/19
From a new method of drug design to an antiviral agent for herpes, Gertrude Elion's works totally transformed the world of drug...
How Movies and TV Get Radiation Sickness Wrong
356,281 views - 09/26/19
Radiation sickness been portrayed in movies and television for more than 50 years. And those portrayals vary a lot. But if there’s one...
Why Can't I Wear My Dog's Flea and Tick Collars?
247,643 views - 09/24/19
It seems like the easiest way to avoid tiny parasites is to just slap on your animal’s tick or flea collar and hike into the woods...
Tank to Table: How Scientists Make Bigger, Tastier Seafood
101,584 views - 09/23/19
Go to to start streaming "Curious Minds: Global Food Supply." Use the promo code ‘scishow’ during the...
5 Measurements You Might Not Realize Are Named After Scientists
149,070 views - 09/22/19
Units are a major way we describe the world around us, and by looking at the scientists some of them are named after, we can get a sense...
The Deep-Sea Snail with an Iron Shell
324,004 views - 09/21/19
Deep in the Indian Ocean, scientists have discovered a snail whose feet are covered in iron scales, but how it builds these scales is a...
This Ancient Tooth Could Shake Up How We Study Evolution | SciShow News
180,318 views - 09/20/19
Scientists were able to get molecular information from 1.7 million years old teeth using a new method that could completely change how we...
Symbioses Are Way More Complex Than You Think!
130,365 views - 09/19/19
When we hear the term symbiosis, we tend to think about a simple partnership between two biological organisms. But in many cases, there...
From Wombat Butts to Quantum Mechanics | SciShow Quiz Show
58,322 views - 09/18/19
SciShow script writer and D&D enthusiast Alexa Billow goes head to head against Hank in his 50th Quiz Show appearance! Who will win in...
How Tall Can Mountains Get?
222,568 views - 09/17/19
The Himalayas are well known for containing the highest elevations on Earth, but can they get higher or is there something putting a stop...
Why Can't We Farm These Foods Yet?
876,220 views - 09/16/19
There are some foods that are so popular that they are at risk of going extinct. What are they and why is it so difficult to harvest...
5 Types of Awesome Glass Made by Nature
270,684 views - 09/15/19
When it comes to sparkly objects, the planet Earth has a lot to offer. Here are 5 especially awesome glasses made by nature! Go to...
Your Muscles Do Remember... But Not The Way You Think
371,966 views - 09/14/19
Did you know that if you start working out, your body will kind of "remember" what it's like to be strong, even after you take some time...
Yet More Evidence That Vaping Is Probably Terrible | SciShow News
389,816 views - 09/13/19
Did you know that your body's fight-or-flight response to danger may, in part, come from inside your bones? Plus, another study suggests...
The Only Radiation Units You Need to Know
218,105 views - 09/12/19
In order to have a meaningful conversation about the dangers of radiation exposure, it’s important to be clear about just how much...
P-values Broke Scientific Statistics—Can We Fix Them?
261,047 views - 09/11/19
A little over a decade ago, a neuroscientist found "significant activation" in the neural tissue of a dead fish. While it didn't prove...
Why Do Pineapple and Kiwi Ruin Gelatin?
137,858 views - 09/10/19
Adding the wrong fruits to your gelatin can turn it into a big, goopy mess. But understanding why this happens can help you learn how to...
Scientists Just Figured Out How Washing Machines Work?!
381,620 views - 09/09/19
According to the math, washing machines should take several hours to get your clothes clean, but in reality it only takes a single hour...
5 Times People Gave Animals Diseases | Reverse Zoonotics
165,428 views - 09/08/19
Go to and use code SCISHOW to get 75% off a 3 year plan. Protect yourself online today! Usually when we...
Why Lizards Don't Run Marathons
146,270 views - 09/07/19
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...
A Cancer Gene May Be More Friendly Than We Thought | SciShow News
134,828 views - 09/06/19
Until now, researchers have assumed that healthy cells switch off the enzyme telomerase as a way to protect themselves from turning...
The Tiny Experiment That Transformed Physics
230,390 views - 09/05/19
In 1956, a team of scientists conducted an experiment that, seemed kind of trivial, but the results would challenge one of our...
The IPBES Report with Brit Garner | SciShow Talk Show
30,656 views - 09/04/19
Brit Garner is here to give Hank a breakdown of the May 2019 preview of the IPBES report, and Jessi from Animal Wonders brings along...
These Wasps Throw Awesome Parties
123,392 views - 09/03/19
Large clumps of wasps can occasionally be found on the tops of tall structures, and although you probably still don’t want to mess with...
Abilities Evolution Took From Us
534,115 views - 09/02/19
A common misconception is that evolution is a long chain of progress, where organisms gain cool, new features over time. However, if a...
6 Parasites That Live INSIDE Cells
157,456 views - 09/01/19
When you think "parasite," you might think of leeches or some nasty tape worm, but there are some that can live inside your very own...
Are Electric Cars Really More Environmentally Friendly?
294,065 views - 08/31/19
Some people say that buying an electric car is a great way to fight climate change - but if they use electricity that is made by burning...
Futuristic Spy Tech Self-Destructs in Sunlight | SciShow News
106,273 views - 08/30/19
This week scientists invented futuristic technologies that sound made up by Hollywood’s spy movies, and we might be able to have infrared...
How Living on Mars Would Make Life Better on Earth
144,510 views - 08/29/19
Thanks to LEGO City Space for helping us envision life on Mars! Go to to start your next space adventure. If...
Science to Watch Poolside: A Swimming Summer Compilation
59,836 views - 08/28/19
Summer is coming to a close, but there is still time to take a cool, refreshing dip in the water of your choice. Before you do, be sure...
What’s the Deal with Antibiotics and Birth Control?
148,233 views - 08/27/19
You might have heard that you should use a back-up method of protection if you’re taking birth control pills and antibiotics at the same...
Having Six Fingers Is a Dominant Trait
163,976 views - 08/26/19
Genetics are extremely complicated—so complicated that having an extra finger or toe, for example, is exceedingly rare despite it being...
From Hognoses to Spider Tails: 6 Sublime Snakes
225,976 views - 08/25/19
Snakes aren’t just muscle-y danger noodles. They're extremely diverse, and some have really weird, unique adaptations that we could all...
Why You Should Never Put Tomatoes in the Fridge!
237,514 views - 08/24/19
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...
We Can Cure Ebola! (Mostly—Which Is Better Than Rarely) | SciShow News
175,217 views - 08/23/19
We’ve made a lot of progress recently in curing two deadly diseases that have been difficult to treat! Hosted by: Hank Green SciShow...
Why Don't We Have Cancer-Sniffing Dogs?
85,072 views - 08/22/19
There are a lot of stories out there about dogs who seemed to smell lung cancer on their owner’s breath, and a recent study found that...
Mimics, Twins, and Doppelgӓngers... Obviously | SciShow Quiz Show
142,308 views - 08/21/19
This video was sponsored by Battle for Cattle. Play the game online at or download it for iOS in Apple’s App...
Can a Hot Drink Cool You Down?
205,967 views - 08/20/19
In some arid parts of the world, people cool off by drinking hot beverages. Can a hot drink on a hot day really cool you down? Hosted...
There Are Millions of Blood Types
377,096 views - 08/19/19
You’re probably aware that your blood can be A, B, AB or O, but it turns out that blood types can get a lot more complicated than that!...
5 Delightful Color-Changing Minerals
196,874 views - 08/18/19
Thanks to Generation Genius for sponsoring this episode. Go to and check out their next generation science...
Why Do Fevers Get Worse at Night?
169,008 views - 08/17/19
If you’ve ever noticed that being sick often sucks more at night, that wasn’t your imagination. Fevers do often rise at night! Why do our...
How Cells Got Their Membranes (Maybe) | SciShow News
145,261 views - 08/16/19
For life to evolve on Earth, a bunch of complex organic molecules had to evolve a way to assemble into cells. So how did those...
3 of the World's Most Intensely Colored Living Things
198,677 views - 08/15/19
For most living things the color you see when you look at them is determined by pigments. But some of the most vivid colors we see in...
Most Metabolism Boosters Are BS
231,196 views - 08/14/19
Despite some bold claims, most supplements can’t really "boost" your metabolism, and the actual changes we can make to it are pretty...
Why Are There No Sea Snakes in the Atlantic?
241,379 views - 08/13/19
The Atlantic Ocean is the second largest on Earth, and yet there are no sea snake populations to be found there. What’s keeping aquatic...
Why Scurvy Shouldn't Exist
430,794 views - 08/12/19
Many a joke has been made about scurvy and pirates, but it’s a serious disease caused by a lack of Vitamin C that still affects people...
4 Parasites Too Creepy to Exist
995,850 views - 08/11/19
Warning! This episode is a little gross… Between 1/3 and 1/2 of all life on earth is parasitic - and here are 4 of the creepiest...
The Terrifying Fish with Transparent Teeth
137,907 views - 08/10/19
The deep-sea dragonfish is a predator that lives deep in the Pacific Ocean. Like many other deep sea predators, it's got an oversized jaw...
Scientists Pull RNA from a 14,000 Year-Old Wolf | SciShow News
217,323 views - 08/09/19
This week in news, a discovery in genetics that was once thought unbelievable, and a parrot so large that it shakes up what we know about...
From Lifesaver Sparks to Life-saving Tech: The Science of Triboluminescence
156,253 views - 08/08/19
You might know that if you chomp on a Wint-O-Green Lifesaver in a dark room, you can see little blue flashes of light in your mouth. What...
Hydrology and Huckleberry The Beaver | SciShow Talk Show
35,760 views - 08/07/19
Hydrologist Casey Ryan explains how he studies water on the Flathead Indian Reservation and Jessi from Animal Wonders brings in...
Why Is Being Underwater So Peaceful?
219,129 views - 08/06/19
After nailing that sweet triple gainer into the pool you may have noticed something: being underwater is very peaceful, thanks to a...
Denisovans: Our Mysterious Cousins That Made Us Better
382,697 views - 08/05/19
During most of the past 2 million years or so, there were several species of hominins on Earth at any given time. Like, you might be...