SciShow
The First CRISPR Gene Therapy Is Here
CRISPR is a powerful gene editing tool, but its uses have been purely scientific until now. In 2023, US and UK drug regulators including the FDA approved Casgevy, a CRISPR/Cas9-based therapy for sickle cell disease and beta-thalassemia....
SciShow
How Much of the Periodic Table is in YOU?
About 99.9% of your typical human body is made of just 11 elements from the periodic table. But hiding in that remaining 0.1% are some elements that do some very important jobs to keep you alive and healthy. Including some elements you...
SciShow
7 Ways Humans Change Color
We're all used to our bodies being more or less the color they always are. But there are a few different medical reason you may be seeing rainbow in the mirror, from benign to medically concerning. Here's just some of the reasons that...
PBS
We Can “Bring Back” The Woolly Mammoth. Should We?
In the quest to understand how evolution basically built the woolly mammoth, we may have found the blueprints for building them ourselves.
PBS
How Blood Evolved (Many Times)
Blood is one of the most revolutionary features in our evolutionary history. Over hundreds of millions of years, the way in which blood does its job has changed over and over again. As a result, we animals have our familiar red blood....
SciShow
3 Things Your Dog Should Not Be Doing
Dogs do a lot of weird things, and sometimes they’re funny enough to post on Tumblr. But before you do, make sure li’l Scamp isn’t doing any of these three things -- because they spell trouble.
SciShow
How People Have Evolved to Live in the Clouds
High elevations can be a problem for humans. Since the air is thinner, you get less oxygen with every breath, leading to all kinds of negative side effects. But there are millions of people around the world who spend their whole lives at...
SciShow
The 5 Most Important Molecules in Your Body
Your body has all sorts of complicated processes going on, and a lot of them are carried out by incredibly powerful molecules. We’re not talking nutrients -- we’re talking about 5 of the molecules that keep you ticking!
TED-Ed
TED-Ed: Are naked mole rats the strangest mammals? - Thomas Park
What mammal has the social life of an insect, the cold-bloodedness of a reptile, and the metabolism of a plant? Bald and buck-toothed, naked mole rats may not be pretty, but they are extraordinary. Thomas Park explains how mole rats'...
SciShow
Accomplishing the Impossible Task of Taking Animals out of Meat
When it comes to creating vegetarian meat substitutes, flavor is only one hurdle—smell and texture are also major factors, and scientists have been making breakthroughs on creating a convincing meatless meat experience. We also got some...
SciShow
How Studying Elephant Seals Could Treat Heart Attacks
Generally, when you think of carbon monoxide, nothing good comes to mind. And that’s… pretty reasonable. But elephant seals show us how we might be able to use carbon monoxide as an effective therapy for heart attacks and strokes.
SciShow
What Color is Your Blood?
What color is your blood. Red, right? Well, actually, yes. So why does it look blue when you see it through your skin? And is everyone's blood always the same color red (spoiler: no)? Do all animals have red blood ('nother spoiler: no!)?...
SciShow
Why Do Some Doctors Still Use Bloodletting?
Has a doctor ever told you that you just have too much blood? Probably not, but there are a handful of conditions where being a little low might be good for you.
SciShow
SciShow Quiz Show: Pit Stains & Climate Change
Megan Toenyes, a former SciShow videomaker returns for a showdown with her former employer!
Amoeba Sisters
Specialized Cells: Significance and Examples
Explore some examples of specialized plant and animal cells with the Amoeba Sisters! Video explains how specialized cell structure suits their function. Table of Contents: Intro 00:00 Specialized Cell Defined 0:26 Animal and Plant Cells...
SciShow
Why Do Bruises Change Colors?
What happens in your body after you get a bruise? Quick Questions explains!
SciShow
How Can Orange Juice Make Your Kale Better?
No matter how much kale or spinach you eat, the bioavailability of non-heme iron doesn't increase, but the vitamin C in orange juice can actually help your body absorb more of it.
TED-Ed
TED-Ed: Oxygen's surprisingly complex journey through your body - Enda Butler
Oxygen forms about 21% of the air around us. In your body, oxygen forms a vital role in the production of energy in most cells. But if gases can only efficiently diffuse across tiny distances, how does oxygen reach the cells deep inside...
SciShow
Changing DNA in a Cell With No DNA: Gene Therapy for Blood Disorders
Lots of genetic diseases come down to a small change in a single gene, but how do you treat those diseases when the cells involved don’t have any DNA?
SciShow
Why Is Fake Blood so Hard to Make?
Functional artificial blood could solve a lot of problems, so why hasn't it been created yet?
Crash Course
Respiratory System, part 2: Crash Course A&P
Can a paper bag really help you when you are hyperventilating? It turns out that it can. In part 2 of our look at your respiratory system Hank explains how your blood cells exchange oxygen and CO2 to maintain homeostasis. We'll dive into...
Bozeman Science
Biological and Polymer Systems
In this video Paul Andersen explains how the structure of a biomolecule fits the function of the biomolecule. For example and enzyme must interact correctly with a substrate to lower the activation energy, The covalent and non-covalent...
SciShow
How Do Marine Mammals Hold Their Breath For So Long?
How is it possible for air-breathing marine mammals like sperm whales and elephant seals to hold their breath for so long?
Bozeman Science
The Respiratory System
Paul Andersen starts this video with a description of the respiratory surface. He explains how worms, insects, fish and mammals take in oxygen and release carbon dioxide. He then tours the major organs of the respiratory system; from the...