Be Smart
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Why Is Blue So Rare In Nature?
175,000
How An Igloo Keeps You Warm
142,343
What Is Fire?
85,086
Are We All Related?
80,888
Why Are We The Only Humans Left?
54,426
Why Is Our Skeleton On the Inside?
46,595
Why Do We Itch?
43,506
100,000,000 Years From Now
33,606
How Do Bees Make Honey?
31,754
Why Does February Only Have 28 Days?
31,639
 
Be Smart - #SHORTS
The Human Story
 
Why Is Blue So Rare In Nature?
175,000
How An Igloo Keeps You Warm
142,343
What Is Fire?
85,086
Are We All Related?
80,888
Why Are We The Only Humans Left?
54,426
Why Is Our Skeleton On the Inside?
46,595
Why Do We Itch?
43,506
100,000,000 Years From Now
33,606
How Do Bees Make Honey?
31,754
Why Does February Only Have 28 Days?
31,639
What is Impossible in Evolution?
31,480
How Ancient Ice Proves Climate Change Is Real
30,621
The Cheerios Effect
30,135
The Golden Ratio: Is It Myth or Math?
29,646
Why Is Sex a Thing?
29,354
Is Height Genetic?
29,330
Are We Living In the Sixth Extinction?
29,249
The Strange Science of Why We Dream
28,673
My Date With A Giant Pacific Octopus!
27,798
There Was No First Human
27,095
The INCREDIBLE Ancient Engineering That Built the Pyramids
26,475
Did Dinosaurs Really Go Extinct?
25,493
How These Ants Took Over the U.S. 🔥🔥🔥🔥🔥
25,414
Why Salt & Pepper Ended Up On Every Table
25,158
What This Chart Actually Means for COVID-19
25,147
The Science of Marathon Running
24,124
Why No One Can Agree What’s REALLY the Tallest Mountain
23,904
20 MILLION Year-Old Spider and the Science of Spider Silk
22,984
 
Be Smart
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Name
Be Smart
Description
We give you deep answers to simple questions about science and the rest of the universe. And also dad jokes.

Be Smart is hosted by Joe Hanson, PhD. He's a molecular biologist and an award-winning science communicator and journalist

Have ideas or questions? Visit our website to get in touch: https://www.itsokaytobesmart.com/



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Recent Activity  
Be Smart The face you make when you realize everything you thought about flavor was wrong… 😬 https://www.youtube.com/watch?v=4SBXG... Some fun in the Sovereign Flavors Lab, where Joe had the chance to talk with flavor scientist Lauren Muhlberger! Did you know there are fewer certified flavor experts than there are pilots!? 🤯 On the latest episode, discover what flavor actually is, and learn how our senses combine to create what we know as flavor. What’s a flavor you’re obsessed with right now? Let us know in the comments! 👅 (7 days ago (edited))
 
 
Be Smart Be Smart fans! Want to help us decide what episodes to bring to the channel? We’re putting the choice in your hands! https://to.pbs.org/2025SurveyBeSmart Each year, Digital Studios conducts a survey to better understand our viewers. Pick new shows, let us know what you love, what you'd rather watch, and much more. It only takes a few minutes, and yes, we actually do listen! We’re excited to hear from you. (1 month ago)
 
 
Be Smart Hey Smart People! 👋 I recently sat down with my buddy Ruff Ruffman over on ⁨ ‪@GBH‬ to talk about navigating digital skepticism, and how you can find news you can actually trust: youtube.com/watch?v=6Imm-NVtZyY How do you stay smart online? 🤔 Head on over for some tips you can use (and share with friends!) (2 months ago (edited))
 
 
Be Smart What really causes autism? 🤔 There are myths. There are headlines. And then there’s the science. I spent months digging into the research to separate fact from fiction. It's the deepest investigation we've ever done, and the full story is live now! 👉 https://youtu.be/E-yaxqDsfgY (3 months ago)
 
 
Channel Comments
Shirrako (4 years ago)
"Why Is Blue So Rare In Nature?"
eatpant5538 (6 years ago)
Water- Blue but not really
clortz9421 (6 years ago)
He missed the perfect chance to say "blue-tiful"
netviz8673 (1 year ago)
notes:
sanchayspidy (4 years ago)
Humans: Blue is rare in nature
PaulPaulPaulson (8 years ago)
This blue my mind
tishaflorence1009 (5 years ago (edited))
"There are no Blue Squirrels"
IIIV114 (7 hours ago)
Butterflies are so Bluetiful!
Blue is my favorite color and it's not even real on animals.
naif2geeked (6 years ago)
So, butterflies are you blue?
JeyPeyy (4 years ago)
"Butterflies are A-W-E-S-O-M-E, make no mistake!" This is a dude who loves his job
rencelen5186 (10 months ago)
7:30 Dream face reveal ah posture
jimjankowski4313 (5 years ago)
"Nature doesn't do halfway with blue"
sbell2738 (5 years ago)
"Even blue whales aren't that blue"
graciousgacha (6 years ago)
Why is blue rare in nature?
Theguyvance298 (1 year ago)
even blue LED's were hard to make
emmad7153 (4 years ago)
him: tries to show blue in animals
jasastopar (5 years ago)
Him: blue eyes are actually not blue
jonathanlevitz9939 (5 years ago (edited))
Meanwhile in a parallel universe: A butterfly has a boxes of human corpses and says "Humans are Awesome!"