Why Don't Snakes Poison Themselves?
AdultsAnimalsLifeNatureBiologyScience... Many animal species stuff themselves with toxic chemicals for protection, which forces them to use a handful of distinct strategies to avoid becoming victims of their own weapons.
We Fell For The Oldest Lie On The Internet
AdultsBiologyHumanScienceFactsHealthInternet CultureMedia... “Your blood vessels stretch a staggering 100,000 kilometers, enough to wrap around Earth twice!" Sounds amazing, right? We spent over a year trying to confirm this claim, and let's just say – things aren't as they seem.
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.
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?
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.
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?
Groundbreaking chemist defines all of life in 2 words | Lee Cronin
AdultsLifePhilosophyScienceBiology... What is life, really? Despite our scientific advancements, we still don’t really know.
Why Is Alzheimer's Disease So Difficult To Treat?
YouthBiologyHealthScienceEducation... While doctors have studied Alzheimer’s for decades, there is still no effective preventive treatment or cure. So, why is Alzheimer’s disease so difficult to treat?
The Species That Broke Evolution?
AdultsHealthHistoryScienceBiologyEvolution... The ancestors of gars, horseshoe crabs and coelacanths looked almost the same as their modern relatives. Darwin called species like these “living fossils'' because they seem like they are evolutionarily frozen in time. But Darwin was wrong.