SciShow
9 of the Weirdest Sperm Adaptations
You probably have a vague idea of what sperm does, but not all sperm are created equal, and some have even developed unique adaptations to get where they're going.
SciShow
Placebos & Nocebos: How Your Brain Heals and Hurts You
You've probably heard how some drugs and treatments make people feel better, even when they turn out to be fake. That's the placebo effect, but how does it work? And could the same effect backfire, causing your brain to make you feel...
SciShow
How Did North America End Up With a Marsupial?
Both North and South America have their own species of marsupial, the opossum, but how they got so far away from their Australian relatives is a bit of a mystery.
SciShow
Could Your Blood Type Ever Change?
From A positive to O negative, everyone's born with a blood type, and they're stuck with that blood type for their whole lives... or are they?
SciShow
7 New Species Discovered in Cities
Scientists are discovering new species at the bottom of the ocean and deep in the rainforest, but there are also plenty of new animals being discovered in cities around the world!
SciShow
5 Animals That Sleep Too Much (and One That Might Not Need To)
In the animal kingdom, sleeping can be dangerous. Lying completely motionless and unconscious for hours at a time is just asking for trouble. There are, however, some sleepy risk-takers who spend almost all of their days snoozing.
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
3 of the World's Most Intensely Colored Living Things
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 nature get their signature looks WITHOUT colorful molecules. How do these intense colors get their power?
SciShow
3 Deadly Diseases You've Probably Never Heard Of
There are some diseases, like Zika or malaria, that get a lot of media coverage. However, every year, millions of people are infected with diseases that are just as deadly that we never hear anything about.
SciShow
Why It Actually Took 50 Years to Make COVID mRNA Vaccines
The FDA recently approved two mRNA vaccines for COVID-19, but it was a challenge to make this type of vaccine work. And it took decades of research to get us to the point where scientists could make those vaccines as quickly as they did.
SciShow
What is Taxonomy and Why is it So Complicated?
The classification of animal groups is essential to the the development of modern biology—but it's extremely complicated. Trying to shoehorn the messy, complicated web of interrelationships that is biology into neat boxes has resulted in...
SciShow
They're Breaking the Species Barrier
There are wild hybridizations happening all the time! Here are five weird and wild hybrids that aren't just cool but could teach us something too. Hosted by: Hank Green (he/him) 0:00 Intro 1:06 Arctic Oddballs 3:43 Bouncing Baby Bears...
SciShow
The Bizarre Evolution of Hemipenes (yes...hemipenes.)
Snakes have two penises (aka hemipenes) that come in a diverse array of shapes and sizes. And they could owe it all to their lack of legs.
SciShow
The Amazing and Delicate World of Bees
Yes, there is a chance they might sting you, but bees are incredibly vital to our ecosystem as we know it. Join Hank for a compilation of our favorite bee episodes—we know this one is a real stinger! We mean, zinger!
SciShow
Our Entire Society is Built on a Geological Fluke
If a tree falls into the forest and doesn't decompose, what happens to it?
SciShow
Monogamy
Hank examines the zoological definition of monogamy, as well as some other breeding strategies that animals use.
SciShow
Your Bones Do More Than You Think
Bones, you probably have them and they're for more than holding your body upright.
SciShow
Why Yapoks Need a Pouch for Their Junk
Yapoks are cute aquatic marsupials, and they're the only living creatures that need pouches for their sacs.
SciShow
Why These Squirrels Destroy Their Brains Every Winter
It seems like a terrible idea to destroy and rebuild your own brain, but that is exactly what some ground squirrels are doing all winter long.
SciShow
Why Sexy Is Sexy
Hank delves into the scientific reasons behind why we are attracted to the people we're attracted to. It's complicated.
SciShow
Why Don’t Jellyfish Look Like That?
When you think of a jellyfish, do you imagine an angelic stingy blob? That's just one stage of the life of a jelly!
SciShow
Why Do People Kill? And Other Revelations Of Human Nature
There are a lot of things that are still not fully understood about the species Homo sapiens - what makes us US? What makes us move the way we do, think the way we do, and kill the way we do? Today on SciShow News, Hank gives us a little...
SciShow
Why Bacteria Don't Outweigh the Earth
This episode is brought to you by the Music for Scientists album! Check out “The Idea” music video here: • The Idea, written... . Given just a little time, bacteria could outgrow earth, so what's stopping them?
SciShow
Why are we Ticklish?
What’s up with ticklishness? And are other animals ticklish, too? Quick Questions has the answers!