SciShow
5 Ways CRISPR Is About to Change Everything
CRISPR-based gene therapies are already changing healthcare for things like sickle cell disease. But CRISPR is bigger than just medicine, and it could revolutionize everything from food and agriculture to green energy fuels to plastics....
SciShow
Sometimes…Jellyfish Live on Land
Myxozoans are so weird. They're jellyfish the size of single-celled organisms. Some of them even live on land. New weirdest animal just dropped. Hosted by: Savannah Geary (they/them)
SciShow
6 of the World’s Weirdest Trees
Today we're talking about the weirdest trees in the world, from the psychedelic rainbow eucalyptus, to the dragon's blood tree, to the jabuticaba that grows delicious fruits on its trunk. Hosted by: Hank Green (he/him)
SciShow
That Time Our Ancestors Almost Went Extinct
There's a lot of humans on our planet. But our global domination was hardly a given. New evidence suggests that our ancestors were on the brink of total extinction nearly a million years ago. So let's talk about that time when the Homo...
SciShow
How Snakes Hijacked Our Brains
Sometimes, one animal ends up in an evolutionary arms race with another for millions of years. Here are four fascinating examples, including our own showdown with snakes. Hosted by: Jaida Elcock (she/her)
SciShow
A Fish In This Lake Evolved Into 850 Different Species
When conditions are just right, one species can turn into hundreds in a short period of time. Welcome to the weird world of adaptive radiation. Hosted by: Jaida Elcock
SciShow
Where Scientists Keep the World's Most Endangered Animals
Even when a species has officially gone extinct, there's sometimes still hope of saving it. Scientists keep insurance populations of endangered animals all over the world with the goal of one day reintroducing them to the wild. Hosted...
SciShow
The Ancient Crops We've Forgotten How to Grow
Today, humans live on just a few staple crops, like maize, rice, and wheat. But in the early days of agriculture, humans were domesticating foods left and right. Come with us as we discover the lost crops of North America, like pitseed...
SciShow
The OTHER Amazing Thing Easter Islanders Did with Rocks
Did the Easter Islanders really cause their own civilization's collapse? Probably not. In fact, they used rock gardens to grow food sustainably on the island of Rapa Nui for centuries. Hosted by: Savannah Geary (they/them)
SciShow
These Islands Shouldn't Exist
You've probably heard that climate change is leading to rising sea levels, which is bad news for lots of islands. But for some islands like the Maldives, rising waters are making them... bigger? Correction: We mixed up east and west!...
SciShow
Fish Need a Better Weather Forecast
Climate disruption threatens food security around the world, but it's especially dangerous for fish farmers. Here's how high-tech climate information services can help then adapt. Hosted by: Hank Green (he/him)
SciShow
Space, Goats, and Climate Change
Support for this video provided by Gates Ventures. Hosted by: Reid Reimers (he/him)
SciShow
Yes, Flights ARE Bumpier Now (And They're Getting Worse)
It's not just your imagination. Turbulence on airplane flights is getting worse, including severe turbulence that could cause injuries. The reason is the climate crisis -- here's how. Hosted by: Tom Lum
SciShow
Are Energy-Efficient Windows Bad For Us?
Low-E windows have reduced the amount of energy required to heat and cool our buildings, a critical step in fighting climate change. But new research suggests we've lost something beneficial in the process. Hosted by: Hank Green (he/him)
SciShow
That Time A Tsunami Lasted 9 Days
In September of 2023, researchers detected a strange vibration all across the planet. They traced it back to a massive tsunami off the coast of Greenland, but the sound went on even after the wave was gone. As in, for nine full days....
SciShow
Permafrost Is Not What You Think It Is
If you've ever heard about things like mammoths being found in permafrost, you may have an image in your head of what that looks like. But you might be wrong! So let's talk about what permafrost really is, why it's so important, and why...
SciShow
A Scientist's Guide to Composting
You can turn all your old cooking scraps into gardening gold, thanks to hard-working microbes. Here's all the science of compost and everything you need to know to get started composting. Hosted by: Savannah Geary (they/them)
SciShow
We All Have Synesthesia
Do you taste something bitter when you hear the right word? Maybe you see a flash of a certain color instead. If so, you might have synesthesia. But it turns out, we're ALL capable of having different senses interact with one another in...
Crash Course
Biology and You: The Dr. Sammy Show: Crash Course Biology #50
Biology connects all of life—all of YOUR life. In the final episode of Crash Course Biology, Dr. Sammy is taking your questions. No matter how big, small, or personal, biology is in them all! He’ll show us how biology can help us solve...
Crash Course
Animal Behavior: Why This Toad Is Bad at Jumping: Crash Course Biology #49
Why do animals do what they do? It’s a huge question, and in this episode, we’ll learn how scientists break it down. We’ll talk about the proximate and ultimate studies they use to understand animal behavior, and some of what they’ve...
Crash Course
Sexual & Asexual Reproduction: How Animals Do It: Crash Course Biology #47
When it comes to animal reproduction, there’s no one-size-fits-all strategy. Some animals need a mate, others don’t, and for some, it depends! In this episode, we’ll learn about sexual and asexual reproduction, internal and external...
Crash Course
Nervous & Endocrine Systems: What Really Happens When You Step on a Lego: Crash Course Biology #46
If cells and organs never talked to each other, an animal would fall apart faster than a boy band after the popular one goes solo. Thankfully, that’s where the nervous and endocrine systems come in! In this episode of Crash Course...
Crash Course
Animal Defense Systems: How Skin, Snot, and Cells Keep Us Healthy: Crash Course Biology #45
The world is full of microbes and viruses that can get us sick, but we’ve got an Avengers-style defense system ready to take them on. In this episode of Crash Course Biology, we’ll learn about an animal’s immune system, from their skin...
Crash Course
Animal Infrastructure: Why You’re More Than Goo: Crash Course Biology #44
When you think about the body’s infrastructure, you probably think of bones. But what about the heart, the blood vessels, and the lymphatic system? In this episode of Crash Course Biology, we’ll tour the cardiovascular, lymphatic, and...