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Why Are All Humans Unique? Meiosis: Crash Course Biology

Adults Biology
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.

Do Gut Microbes Control Your Personality? | Kathleen McAuliffe | TED

Adults Biology
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.

A Tour of the Cell: Crash Course Biology #23

Adults Biology
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.

CRISPR's Next Advance Is Bigger Than You Think

Adults Biology
You've probably heard of CRISPR, the revolutionary technology that allows us to edit the DNA in living organisms.

Why Can't I Grow More Teeth?

Adults Biology
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

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.

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.

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.

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.

How to master your sense of smell

Adults Biology
Some perfumers can distinguish individual odors in a fragrance made of hundreds of scents; tea-experts have been known to sniff out the exact location of a particular tea; and the NYC Transit Authority once had a employee responsible only for sniffing out gas leaks.

Just How Good is Eagle Vision?

Adults Biology
In a remote part of Scotland, expert bird handler Lloyd Buck sets up a game of hide and seek for his golden eagle Tilly to test just how good her eyesight is.

The Best Way to Boost Your Immune System

Adults Biology
There is this idea floating around that what doesn’t kill you, makes you stronger.

You Can’t Actually Die Of Old Age

Adults Biology
Despite centuries of death records to the contrary, “dying of old age” is not medically possible; instead, it’s just a convenient catch-all.

Your Immune System is More Dangerous than You Think

Adults Biology
There is this idea floating around that what doesn’t kill you, makes you stronger. That surviving a disease leaves you better off. And it seems to make sense because we have all experienced this.

The Disease You Will Never Survive

Adults Biology
A simple mis-folding in a certain brain protein causes a disease for which we have no cure.