Our Instruction Manual for Existing
AdultsBiologyHistoryHuman... Your DNA contains all the instructions your body needs to function. In this episode of Crash Course Biology, we’ll figure out what this giant instruction manual looks like and how this three-billion-letter code gets copied into your trillions of cells through DNA replication.
Why Are All Humans Unique? Meiosis: Crash Course Biology
AdultsBiologyHumanScience... Ever wonder why we aren’t exact clones of our parents, or why siblings aren’t exactly alike? The reason traces back to meiosis. In this episode of Crash Course Biology, we’ll discover how egg and sperm cells get made and learn why you’re a totally unique remix of your parents’ DNA.
Your Immune System
KidsBiologyHealthScience... Watch the video to learn how our immune system works and what are the three types of immunity that protect us each and every day.
Why Do We Get Goosebumps?
YouthBiologyHumanScience... We've all been there when it gets a bit chilly and you end up with goosebumps. But have you ever wondered why and how we get them?
Do Gut Microbes Control Your Personality? | Kathleen McAuliffe | TED
AdultsBiologyHealthHuman... Biologist Kathleen McAuliffe dives into new research that suggests certain bacteria in your gut can influence major parts of who you are, from your personality to life-changing neurological disorders.
Intro To Nutrition
YouthBiologyHealthWellness... The goal for today's lesson is to explain the role of nutrition in leading a healthy lifestyle.
Can you trust your memory? This neuroscientist isn’t so sure | André Fenton
AdultsBiologyHealthPsychology... There are three kinds of memory that all work together to shape your reality. Neuroscientist André Fenton explains.
A Tour of the Cell: Crash Course Biology #23
AdultsBiologyEducationHuman... The cell is the basic unit of life, and our understanding of it has advanced as science, and the tools available to scientists, has advanced.
You Are Your Microbes
YouthBiologyScience Jessica Green and Karen Guillemin emphasize the importance of understanding the many organisms that make up each and every organism.
A Lot About Axolotls
YouthAnimalsBiologyEducationNature... Join Jessi and Squeaks as they learn about why axolotls have feathery gills and live in water, and how to protect their natural habitat.
CRISPR's Next Advance Is Bigger Than You Think
AdultsBiologyScienceTechnology... You've probably heard of CRISPR, the revolutionary technology that allows us to edit the DNA in living organisms.
Sense-Abilities | Weird But True!
KidsBiologyEducationHuman... Watch the full episode of Weird But True, Season 1 Episode 11, "Sense-Abilities"! Did you know that when you smell something, molecules of whatever you’re smelling are actually entering your nose?!
Why Can't I Grow More Teeth?
AdultsBiologyEducationHuman... How come sharks get to have endlessly regrowing teeth when humans only get one set our entire lives? And how come some other mammals get to cheat the system? From elephants to baboons, we'll learn why teeth don't grow back.
The #1 way to strengthen your mind is to use your body | Wendy Suzuki
AdultsBiologyHealthHuman... Exercise gives your brain a “bubble bath of neurochemicals,” says Wendy Suzuki, a professor of neural science.
Blindness Isn't a Tragic Binary — It's a Rich Spectrum | Andrew Leland | TED
AdultsBiologyHumanScience... When does vision loss become blindness? Writer, audio producer and editor Andrew Leland explains how his gradual loss of vision revealed a paradoxical truth about blindness -- and shows why it might have implications for how all of us see the world.
The Reason Why Cancer is so Hard to Beat
AdultsBiologyHumanScience... An undead city under siege, soldiers and police ruthlessly shooting down waves of zombies that flood from infected streets, trying to escape and infect more cities. This is what happens when your body fights cancer, more exciting than any movie.
Neuroscientist debunks ‘lizard brain’ myth | Lisa Feldman Barrett
AdultsAnimalsBiologyHuman... Plato famously described the human psyche as two horses and a charioteer: One horse represented instincts, the other represented emotions, and the charioteer was the rational mind that controlled them.
What Biologists Do: Crash Course Biology
AdultsBiologyBiotechnologyEducation... A biologist’s natural habitat is anywhere questions about life are being asked—whether the subject is a nematode or a narwhal, a single cell, or a whole ecosystem.
The science of super longevity | Dr. Morgan Levine
AdultsBiologyHumanScience... Science can’t stop aging, but it may be able to slow our epigenetic clocks.
Your Body Killed Cancer 5 Minutes Ago
AdultsBiologyHealthHuman... Somewhere in your body, your immune system just quietly killed one of your own cells, stopping it from becoming cancer, and saving your life. It does that all the time.