SciShow
A Needle So Tiny It Injects Into A Single Cell
It may be possible to create a needle so small it can inject a vaccine into a single cell. But it's not the product of a medical device company. It's part of something we often think of as making us sick.
SciShow
How Does Chickenpox Turn Into Shingles?
You might know that chickenpox and shingles are both caused by the same virus, varicella zoster. Here's why the symptoms, and even the vaccines, are different the second time around.
SciShow
Why HPV Is Cancer In One Convenient Package
HPV isn't the only virus that causes cancer, but it's one of the best at it. Here's what we've learned about this supervillain of a pathogen, and how to stop it.
SciShow
Why Do People Like the Smell of Gasoline?
Why do we love the smell of something like gasoline that provides no clear evolutionary adaptation for us? Here are the psychological and chemical reasons that some researchers have suggested.
SciShow
How PET Scans See Cancer
When someone gets a PET scan to detect tumors and how far a cancer has spread, that machine is actually detecting sugar. Because cancer has a sweet tooth, and this phenomenon, called the Warburg effect, may help us develop new cancer...
SciShow
Can Gray Hair Be Reversed?
Researchers have identified the processes that cause gray hair and have done experiments to reverse it. And believe it or not, we've had some of these options for decades.
SciShow
Could a Perfume Ingredient Save ER Patients?
Sometimes, major injury causes blood loss that results in improper clotting, or coagulopathy. Some researchers think a compound used in perfume to create jasmine fragrances could help save these patients.
SciShow
Does COVID Mess With Your DNA?
As more and more are infected with COVID-19, there's a growing group of people who have what's called Long COVID, meaning they still have symptoms for weeks or months after getting sick. While we still don't know for sure the cause of...
SciShow
Does the Food Chain Stop At Jellyfish?
Jellyfish aren't the most nutritious animals in the ocean. Yet sea turtles and many other organisms get their nutrition from almost nothing else. Here's why they don't totally starve to death.
SciShow
Can We Treat Alzheimer's With Period Blood?
From diabetes to Alzheimer's, there's a lot that we hope to be able to treat using stem cell therapies. But the stem cells we use tend to be hard to come by. But it turns out there's a new source of stem cells that has researchers...
SciShow
Fentanyl is Very Deadly… Here's Why
Fentanyl has become a primary cause of the opioid overdose epidemic in the past decade. But what is it about this drug that's so dangerous? There's more to the story than meets the eye. If you’re ever in the position where you think...
SciShow
Can Sponges “Think” Using Light?
Sponges might not look like particularly complex animals, but they've had billions of years to evolve their own special systems. And one of those systems might involve sending messages through their body in the form of light.
Amoeba Sisters
Skeletal System
Join the Amoeba Sisters on this introduction to the human Skeletal System! This video first introduces several types of skeletal systems found in different organisms before focusing on the human endoskeleton. Then, this video takes a...
Amoeba Sisters
Biomolecules (Updated 2023)
Explore the four biomolecules and their importance for organisms and the structure and function of their cells! This 2023 UPDATED Biomolecules Amoeba Sisters video has some more detail and improved art from the 2016 Amoeba Sisters...
Amoeba Sisters
Animals: Tour of 9 Phyla
Join the Amoeba Sisters in exploring some general animal characteristics, major vocabulary used in classifying animals (such as symmetry, protostome vs deuterostome, cephalization, and coelom), and take a general tour of 9 major animal...
SciShow
Meet Our Nitrogen-Breathing Bacterial Relative
Oxygen is pretty great stuff, but this recently discovered organism couldn’t care less about oxygen. It breathes nitrogen and may offer a window into how the types of cells in OUR bodies may have evolved billions of years ago.
SciShow
How Do Oysters Make Pearls?
Quick Questions gives you the low-down on how oysters turn a tiny bit of gunk into a lovely, valuable pearl. ----------
SciShow
5 Groundbreaking Women in Engineering
After many years of quietly changing the world, women are finally receiving recognition for contributions in STEM. Let’s celebrate these 5 groundbreaking women, and their contributions to the field of engineering.
SciShow
Nature’s Secret Weapon Against Microbes: Squid Skin
There's a compound found in squid skin that they use to change color and protect their cells, but it could also help us fight some of the most common disease-causing microbes out there.
SciShow
What are Blood Types?
Quick Questions explains why, when it comes right down to it, there are really only eight kinds of people in the world.
SciShow
We May Have a COVID Vaccine in 2021, But Not Without Taking Risks
Right now, experts say a vaccine for COVID-19 is a year or more away. But as far away as it sounds, it’s only within the realm of possibility because scientists are speeding up the vaccine development process in surprising ways.
SciShow
This Parasitic Plant Stole Over 100 Genes From Other Plants | SciShow News
Plants may not seem like they live the most exciting lives, but two new papers published this week point to different types of plants that are actually very cunning and manipulative. One, the parasitic dodder, steals both nutrients and...
SciShow
This Neuron Helps People Walk Again | SciShow News
There’s been some big news in neuron science this week as individuals suffering paralysis regain mobility and music might have a secret that gets us to dance.
SciShow
These 100-Million-Year-Old Microbes Are Still Alive!
Researchers have found ancient communities of microbes that have been buried deep, for a hundred million years! This discovery might be the oldest living thing on Earth, and could even expand the search for life on other planets.