How Species Make and Break Friendships
Adults Biology
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
Adults Biology
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
Adults Biology
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
Youth Biology
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
Adults Biology
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
Adults Biology
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
Adults Biology
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
Adults Biology
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?
Youth Biology
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
Adults Biology
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?
Adults Biology
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
Adults Biology
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
Kids Biology
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
Adults Biology
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
Youth Biology
Today, we will learn about how your gut works through a rather gross science experiment.
Do Butterflies Taste With Their Feet?
Youth Biology
Butterfly and moth expert Dr. David Lees explores what we know about butterflies’ sense of taste.
You’re Not a Lab Mouse, but You Might Be a Wild Mouse
Adults Biology
The lab mice we use for genetic studies are not only closely related, but live out their whole lives in a sterile environment, so they don’t tell us everything we need to know about actual humans.
Microworlds: Bug Mimics
Youth Biology
Mimicry takes a few forms here on the coast in the world of bugs, all in the name of survival.
Why do we have crooked teeth when our ancestors didn’t?
Adults Biology
Explore the prevailing scientific theory of why crooked teeth and impacted wisdom teeth are recent developments in human evolution.
How Do We Move Our Fingers
Youth Biology
Learn about how we move our fingers and more fun scientific facts related to hands.
How Your Immune System Works
Youth Biology
Today, we are finding out how your immune system works through a science experiment!