The Real Reason Why You Have Allergies
AdultsBiologyHealthHuman Allergies are more than just overreactions – they might be an evolutionary relic from a time when worms invaded our bodies daily.
The Radium Worked Until His Jaw Fell Off
AdultsBiologyHistoryScience We'd like to thank Luciteria for the loan of the element samples and the display in today’s episode.
What Happens When Predators Disappear?
AdultsBiologyEcologyScience A world without predators. It sounds like a safer, happier world, but come on, this is SCIENCE…
The real reason polio is so dangerous
AdultsHealthHistoryHumanBiologyScience... Explore what makes polio so dangerous, what is causing the 21st century resurgence of cases, and how we can eradicate the disease.
Why Do Butterflies Bother Being Caterpillars?
AdultsAnimalsLifeNatureEvolutionBiology... It seems wild that some animals basically trade in their bodies for new ones during their lifetime, but it's actually really common – and it makes a lot of sense.
How Does A Wombat Poo In Cubes?
YouthAnimalsFunnyScienceBiology... Unlike some might believe, wombat's don't have square shaped bottoms, so how do they poo in cubes?
We Only Discovered This 10 Years Ago
AdultsEducationHistoryBiologyEvolutionScience... Most living things on Earth need oxygen to survive, but scientists discovered a species of bacteria that uses oxygen totally differently from every other organism on Earth.
A Cute But Creepy Tiny Predator
YouthAnimalsEnvironmentNatureBiologyScience... Despite their tiny size, tarsiers are excellent nocturnal hunters. With large eyes that enable them to see well in the dark and advanced hearing combined with huge hands, catching prey is almost too easy.
Fabulous Food Chains
YouthEcologyEducationScienceBiologyFood... In this of Crash Course Kids, Sabrina talks about the way energy moves, or flows, through an ecosystem and how that movement forms Food Chains!
You've Never Heard of the World's Most Common Mineral
AdultsEducationScienceWorkWorldEnergyEnvironmentTechnologyGeologyBiology... The most common substance in the world is literally IN the world. It's a mineral called bridgmanite, and it belongs to a class of minerals (called perovskites) that scientists are trying to use in the next generation of solar panels.
There Is Something Hiding Inside Earth
AdultsEducationScienceBiologySpaceNature... We’ve found a new planet, home to octillions of the most extreme beings living in the most absurd and deadly hellscape. In absolute darkness, crushed by the weight of mountains, starved of oxygen, cooked alive, bathed in acid, salt or radiation.
What Is Sickle Cell Disease?
YouthBiologyGeneticsScienceHealthEducation... You have around 35 trillion red blood cells moving around your body at all times. Typically they are rounded and flexible. What happens when they aren’t?