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Why Do We Have Bones?

YouthBiologyHumanScience...
Why do we have skeletons inside of us, and what even are bones?

The WEIRD Way Monkeys Got to America

AdultsAnimalsEducationHealth...
Many of the greatest biological dispersal events in history likely happened because animals inadvertently traveled across the oceans on floating debris.

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?!

Is Bigger Better?

AdultsAnimalsLifeNature...
Elephants might be strong, but they are weak compared to ants because ants have certain advantages that allow them to outlift their larger competitors.

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.

How Species Make and Break Friendships

AdultsAnimalsHumanLife...
Community ecology is the study of interactions between different species of living things, and lets ecologists examine the effects of predator-prey relationships, parasites, and mutually beneficial interactions. In this episode of Crash Course Biology, we’ll examine the myriad interspecies interactions with examples, see how keystone species impact their environment and explore how communities rebuild when they are disrupted, through the lens of the 1980 eruption of Mount St. Helens.

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.

How Fish Get Away With Being Colourful

YouthEnvironmentNatureScience...
Coral reef fish get away with being colourful thanks to a weird quirk of underwater optics.

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.

How To Get Venom From The World's Deadliest Spider

AdultsAnimalsLifeNature...
The deadliest is probably the funnel-web spider and its relatives. The Sydney funnel web spider (Atrax robustus) can kill a toddler in about 5 minutes and a 5-year-old in about 2 hours.

Why Do We Have Crooked Teeth?

YouthHistoryScienceBiology
Explore the prevailing scientific theory of why crooked teeth and impacted wisdom teeth are recent developments in human evolution.

The science of super longevity | Dr. Morgan Levine

AdultsBiologyHumanScience...
Science can’t stop aging, but it may be able to slow our epigenetic clocks.

Are Life-Saving Medicines Hiding in the World’s Coldest Places?

AdultsEnvironmentLifeNature...
Could the next wonder drug be somewhere in Canada's snowy north? Take a trip to this beautiful, frigid landscape as chemist Normand Voyer explores the mysterious molecular treasures found in plants thriving in the cold.

What Are Plants Made Of? Crash Course Botany

AdultsEducationFoodLife...
When you eat a salad for lunch, you’re digging into a giant pile of plant organs. That’s right—plants are made up of organs, only theirs follow a totally different set of rules from our own.

Panda Mother Teaches Cub To Eat Bamboo

KidsAnimalsEducationBiology
Panda babies aren’t actually born with the essential stomach enzyme needed to break down bamboo. So, how do they eat it?

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.

The Guts

YouthBiologyScienceHealth
Today, we will learn about how your gut works through a rather gross science experiment.

Do Butterflies Taste With Their Feet?

YouthAnimalsFactsNature...
Butterfly and moth expert Dr. David Lees explores what we know about butterflies’ sense of taste.