TED Talks
TED: Your kids might live on Mars. Here's how they'll survive | Stephen Petranek
It sounds like science fiction, but journalist Stephen Petranek considers it fact: within 20 years, humans will live on Mars. In this provocative talk, Petranek makes the case that humans will become a spacefaring species and describes...
SciShow
Astronauts' Arch-Enemy: Dust
For astronauts, dust is no joke. On the moon and Mars, dust isn't at all like the stuff under your bed. It can be poisonous, corrosive, even made of razor-sharp glass. So future astronauts are going to need more than a dust buster to get...
TED-Ed
What causes cavities? - Mel Rosenberg
When a team of archeologists recently came across some 15,000-year-old human remains, they made an interesting discovery: the teeth of those ancient humans were riddled with holes. So what causes cavities, and how can we avoid them? Mel...
Crash Course Kids
How to Get Resources - Picky Pineapples
Want a Pineapple? If you want a pineapple, it's possible you can just run down to the store and get one. But, if you wanted to grow one, that's a lot more difficult depending on where you live. In this episode of Crash Course Kids,...
SciShow
The Science of Lying
Hank gets into the dirty details behind our lying ways - how such behavior evolved, how pathological liars are different from the rest of us, and how scientists are getting better at spotting lies in many situations.
SciShow
What We Really Know About Placenta-Eating
Join SciShow News as we explore why eating placenta doesn't actually do very much. Injecting wastewater into the ground, on the other hand, seems to do quite a bit.
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
Selection
Paul Andersen explains the importance of selection in biology. Artificial selection occurs when humans choose traits that will be selected for or against. This has created the variety of domesticated animals and crops. He then describes...
TED Talks
TED: The likability dilemma for women leaders | Robin Hauser
When women lead, bias often follows. Documentarian Robin Hauser dives into the dilemma between competence and likeability faced by women in leadership roles, detangling the unconscious beliefs and gendered thinking that distort what it...
SciShow
How Paintings Help You See the World Differently
Emerging research suggests that paintings might be more than just pretty pictures: how we process what we see in paintings might also impact the way we process the world around us.
MinuteEarth
Why Apple Pie Isn't American
Our diets are more global than we realize, because our common food crops and animals were domesticated far away in diverse locations. __________________________________________ If you want to learn more about this topic, start your...
TED Talks
TED: The brain science of obesity | Mads Tang-Christensen
Your belly and your brain speak to each other, says obesity researcher Mads Tang-Christensen. Offering scientific proof that obesity is a disease influenced by genetics and the environment, he introduces a molecule discovered in both the...
Be Smart
Are We All Related?
In part 3 of our special series on human ancestry, we investigate how closely related we all really are. Basic math tells us that all humans share ancestors. But you'll be amazed at how recently those shared ancestors lived. Thanks to...
SciShow
How Sea Butterflies "Fly" in Water
Birds fly, and fish swim. We learn this when we are children. But not everything in nature is quite so simple… Meet Limacina helicina, an artic-dwelling sea butterfly that flies through the water. Chapters View all SPY IN THE WILD 2 0:04...
SciShow
Can We Keep Neurons Active…with Algae?
Cyanobacteria and other microbes produce a lot of oxygen. What if we could use that oxygen to power our brains?
Bozeman Science
Response to External Environments
Paul Andersen explains how organisms respond to the external environment. He begins with a discussion of behavioral responses like hibernation and migration. He ends with a discussion of physiological responses like shivering and...
SciShow
7 Weird Things That Happen Before You're 7
Kids are weird. They eat mud, talk to bugs, and stick things up their noses... but the changes kids go through as they grown out of infancy and into childhood are even weirder!
SciShow
Hydras Are What They Eat
You may have to open your mouth pretty wide to take a bite of a burger, but a Hydra can tear open its mouth to devour food larger than itself.
Be Smart
The Deadliest Flu Season in History?
The flu might feel like some minor illness that you don't need to worry about much, but tens of thousands of people still die from it every year. And back in 1918, Flu killed up to 5% of the world's population. Could a flu that bad...
SciShow
6 Microbes Saving the Environment
Ever since humans found out about germs, we’ve gone a bit overboard inventing antibacterial soap and antibiotics and antifungals. But despite our aversion to them, microbes aren’t all bad, and some of them could even help us save the...
SciShow
Top 5 Deadliest Diseases
Hank scares our pants off with a tale of the five deadliest infectious diseases in the world.
SciShow
Your Pee is Pollution
Ever wonder what happens after you flush? You should, because your pee is causing problems! Hank talks about how, and why, human waste is having weird effects on the natural world. We're talking homicidal fish and hermaphroditic frogs...
TED Talks
Howard Rheingold: The new power of collaboration
Howard Rheingold talks about the coming world of collaboration, participatory media and collective action -- and how Wikipedia is really an outgrowth of our natural human instinct to work as a group.
SciShow
CRISPR: A Gene-Editing Superpower
Any molecular biologist will tell you that genetic engineering is tricky. But up until recently we might be witnessing a new age in human development.