Season 3

Video thumbnail: It's Okay to Be Smart The Invisible Creatures That Keep You Alive!

It's Okay to Be Smart

The Invisible Creatures That Keep You Alive!

A complete microbiome lives inside us, and believe it or not, that's a good thing.

The Invisible Creatures That Keep You Alive!

Video thumbnail: It's Okay to Be Smart VENOM: Nature’s Killer Cocktails

It's Okay to Be Smart

VENOM: Nature’s Killer Cocktails

Venom comes in all different types, so here's everything you'll ever need to know.

VENOM: Nature’s Killer Cocktails

Video thumbnail: It's Okay to Be Smart Attack of the Cosmic Space Junk!

It's Okay to Be Smart

Attack of the Cosmic Space Junk!

No astronauts were harmed in the making of this video.

Attack of the Cosmic Space Junk!

Video thumbnail: It's Okay to Be Smart Why Salt & Pepper?

It's Okay to Be Smart

Why Salt & Pepper?

Join the #AnythingButPepper movement!

Why Salt & Pepper?

Video thumbnail: It's Okay to Be Smart Why Don't Other Animals Wear Glasses?

It's Okay to Be Smart

Why Don't Other Animals Wear Glasses?

Vision impairment is common in humans, so why not the rest of the animal kingdom?

Why Don't Other Animals Wear Glasses?

Video thumbnail: It's Okay to Be Smart Should You Be Worried About Zika?

It's Okay to Be Smart

Should You Be Worried About Zika?

Mosquitos have been dangerous for, well... forever. So what's new about Zika?

Should You Be Worried About Zika?

Video thumbnail: It's Okay to Be Smart Inside the World of Fire Ants!

It's Okay to Be Smart

Inside the World of Fire Ants!

A song of ants and fire… and ant-decapitating flies.

Inside the World of Fire Ants!

Video thumbnail: It's Okay to Be Smart Is Your Brain Too Old For Video Games?

It's Okay to Be Smart

Is Your Brain Too Old For Video Games?

Video games are still on the rise. Can you take the heat?

Is Your Brain Too Old For Video Games?

Video thumbnail: It's Okay to Be Smart 6 Chemical Reactions That Changed History

It's Okay to Be Smart

6 Chemical Reactions That Changed History

From fire to food, check out these life-altering reactions that surround us everyday.

6 Chemical Reactions That Changed History

Video thumbnail: It's Okay to Be Smart The Cosmic Afterglow

It's Okay to Be Smart

The Cosmic Afterglow

The lingerling radiation from the ancient universe still surrounds us to this day.

The Cosmic Afterglow

Video thumbnail: It's Okay to Be Smart Why Are You Multicellular?

It's Okay to Be Smart

Why Are You Multicellular?

Even cells can be selfish.

Why Are You Multicellular?

Video thumbnail: It's Okay to Be Smart Are You Smarter Than A Slime Mold?

It's Okay to Be Smart

Are You Smarter Than A Slime Mold?

The simplest organisms can still accomplish wonders.

Are You Smarter Than A Slime Mold?

Video thumbnail: It's Okay to Be Smart Is Inheritance Really All In Our Genes?

It's Okay to Be Smart

Is Inheritance Really All In Our Genes?

Epigenetic inheritance is really weird, but is it real?

Is Inheritance Really All In Our Genes?

Video thumbnail: It's Okay to Be Smart How Do Bees Make Honey?

It's Okay to Be Smart

How Do Bees Make Honey?

One of nature's most amazing recipes.

How Do Bees Make Honey?

Video thumbnail: It's Okay to Be Smart How Many Trees Are There?

It's Okay to Be Smart

How Many Trees Are There?

It may be an impossible questions, but we can at least get close.

How Many Trees Are There?

Video thumbnail: It's Okay to Be Smart The Equinox Isn't What You Think It Is

It's Okay to Be Smart

The Equinox Isn't What You Think It Is

Is the equinox really when day = night, or is that a myth?

The Equinox Isn't What You Think It Is

Video thumbnail: It's Okay to Be Smart How Do Squirrels Find Their Nuts?

It's Okay to Be Smart

How Do Squirrels Find Their Nuts?

Astounding feats of animal memory.

How Do Squirrels Find Their Nuts?

Video thumbnail: It's Okay to Be Smart 100,000,000 Years From Now

It's Okay to Be Smart

100,000,000 Years From Now

What relics will the 'anthropocene' age leave behind?

100,000,000 Years From Now

Video thumbnail: It's Okay to Be Smart Why Seasons Make No Sense

It's Okay to Be Smart

Why Seasons Make No Sense

Day by day, country by country, we tend to measure seasons differently.

Why Seasons Make No Sense

Video thumbnail: It's Okay to Be Smart This Is Not a Rainbow

It's Okay to Be Smart

This Is Not a Rainbow

The furthest extremes of light refraction phenomena.

This Is Not a Rainbow

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