Skip to main content

Up Next

Is Height Genetic?

Is Height Genetic?

Season 6 Episode 26
6:07
What Do Raindrops Really Look Like?

What Do Raindrops Really Look Like?

Season 6 Episode 27
5:24
Where Do Teeth Come From?

Where Do Teeth Come From?

Season 6 Episode 28
6:40
What is Farthest Away?

What is Farthest Away?

Season 6 Episode 31
6:08
Can We Get Older Without Aging?

Can We Get Older Without Aging?

Season 6 Episode 33
8:53
The Raisin Bran Effect

The Raisin Bran Effect

Season 6 Episode 34
5:19
Does Someone Else Have Your Face?

Does Someone Else Have Your Face?

Season 6 Episode 35
12:42
Do Fish Pee?

Do Fish Pee?

Season 6 Episode 36
4:53
Why Do We Itch (ASL)

Why Do We Itch (ASL)

Season 6 Episode 37
4:59
Back to Show
It's Okay to Be Smart

Will You Still Eat Raw Fish After Watching This Video?

Season 6 Episode 25

Have you ever noticed that warning about raw or undercooked seafood at the bottom of restaurant menus? Ever wondered why it’s there? Because fish carry a ton of parasites, and if they aren’t prepared correctly then those parasites can make it into your body. But it turns out, this intersection can teach us a lot about how these moochers help keep ecosystems healthy, and why we should protect them.

Sign up now for inspiring and thought-provoking media delivered straight to your inbox.
Support Provided By
Season
Can a Billion Oysters Save New York City?
12:56
After a century of industrial pollution and superstorms, New York's waterways needs help!
Crash Test Science! (Hacking Physics To Save Lives)
37:33
Crashing a car is usually a terrible accident. But sometimes, it’s a way to save lives.
The Strange Psychology of Superfans
18:10
A huge part of our identities, emotions, and our lives get tied up...Why is that?
How Did X Become the Unknown (and so much else)?
10:57
X is everywhere and it’s probably thanks to math. But why is x the symbol for the unknown?
What Is The Most Average Thing?
17:34
What’s the most average thing in the universe? We’re on a mission to find it.
The Biggest Myth About Innovation
17:48
New ideas come from chance events and unexpected connections involved in working together.
Why Some of the Rainbow is Missing
11:18
Our universe locked incredible secrets in a code written in rainbows.
The Truth About Butterfly Metamorphosis (It's Very Weird)
13:54
Butterfly metamorphosis is one of nature’s most magical transformations.
How Scorpions Became Earth’s Ultimate Survivors
14:03
Scorpions are an evolutionary marvel with venom that could save lives.
Lab-Grown Meat is Here… and I Taste-Tested It!
14:29
Join me on my visit to the most advanced cultivated meat production facility in the world.
The Deadly Chemistry That Made Life Interesting
14:03
Life on Earth may have stayed boring and small if it weren’t thanks to one deadly element.
How the CIA Secretly Spied On Climate Change
17:58
How the CIA used Cold War technology to study and combat climate change
Active loading indicator