Be Smart
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Why Is Blue So Rare In Nature?
Why Is Blue So Rare In Nature?
25,772,587 views - 7 years ago
171,817
How An Igloo Keeps You Warm
How An Igloo Keeps You Warm
19,867,547 views - 8 years ago
132,450
What Is Fire?
What Is Fire?
12,703,550 views - 9 years ago
84,690
Are We All Related?
Are We All Related?
11,725,442 views - 7 years ago
78,169
Why Are We The Only Humans Left?
Why Are We The Only Humans Left?
8,007,953 views - 7 years ago
53,386
Why Is Our Skeleton On the Inside?
Why Is Our Skeleton On the Inside?
6,852,396 views - 4 years ago
45,682
Why Do We Itch?
Why Do We Itch?
6,506,711 views - 6 years ago
43,378
100,000,000 Years From Now
100,000,000 Years From Now
4,998,263 views - 9 years ago
33,321
Why Does February Only Have 28 Days?
Why Does February Only Have 28 Days?
4,733,809 views - 10 years ago
31,558
How Do Bees Make Honey?
How Do Bees Make Honey?
4,584,603 views - 9 years ago
30,564
see more
 
Playlists
Be Smart - #SHORTS
65 videos
IN OUR NATURE - A Wildlife Documentary Series from Be Smart
6 videos
The Science of the Human Body!
26 videos
Evolution Is Amazing #BackToSchool
14 videos
The Human Story
4 videos
see more
 
  Search
Date Added | Most Viewed | Top Rated
Why Is Blue So Rare In Nature?
Why Is Blue So Rare In Nature?
25,772,587 views - 7 years ago
171,817
How An Igloo Keeps You Warm
How An Igloo Keeps You Warm
19,867,547 views - 8 years ago
132,450
What Is Fire?
What Is Fire?
12,703,550 views - 9 years ago
84,690
Are We All Related?
Are We All Related?
11,725,442 views - 7 years ago
78,169
Why Are We The Only Humans Left?
Why Are We The Only Humans Left?
8,007,953 views - 7 years ago
53,386
Why Is Our Skeleton On the Inside?
Why Is Our Skeleton On the Inside?
6,852,396 views - 4 years ago
45,682
Why Do We Itch?
Why Do We Itch?
6,506,711 views - 6 years ago
43,378
100,000,000 Years From Now
100,000,000 Years From Now
4,998,263 views - 9 years ago
33,321
Why Does February Only Have 28 Days?
Why Does February Only Have 28 Days?
4,733,809 views - 10 years ago
31,558
How Do Bees Make Honey?
How Do Bees Make Honey?
4,584,603 views - 9 years ago
30,564
How Ancient Ice Proves Climate Change Is Real
How Ancient Ice Proves Climate Change Is Real
4,580,001 views - 5 years ago
30,533
The Cheerios Effect
The Cheerios Effect
4,447,261 views - 7 years ago
29,648
What is Impossible in Evolution?
What is Impossible in Evolution?
4,430,985 views - 4 years ago
29,539
Apollo’s Most Important Discovery (Inside NASA’s Moon Rock Vault!)
Apollo’s Most Important Discovery (Inside NASA’s Moon Rock Vault!)
4,416,762 views - 5 years ago
29,445
Is Height Genetic?
Is Height Genetic?
4,364,929 views - 6 years ago
29,099
Are We Living In the Sixth Extinction?
Are We Living In the Sixth Extinction?
4,348,781 views - 10 years ago
28,991
Why Is Sex a Thing?
Why Is Sex a Thing?
4,163,070 views - 3 years ago
27,753
The Golden Ratio: Is It Myth or Math?
The Golden Ratio: Is It Myth or Math?
4,160,676 views - 4 years ago
27,737
My Date With A Giant Pacific Octopus!
My Date With A Giant Pacific Octopus!
4,145,364 views - 9 years ago
27,635
There Was No First Human
There Was No First Human
4,036,448 views - 11 years ago
26,909
The INCREDIBLE Ancient Engineering That Built the Pyramids
The INCREDIBLE Ancient Engineering That Built the Pyramids
3,931,688 views - 7 years ago
26,211
How These Ants Took Over the U.S. 🔥🔥🔥🔥🔥
How These Ants Took Over the U.S. 🔥🔥🔥🔥🔥
3,808,940 views - 8 years ago
25,392
Did Dinosaurs Really Go Extinct?
Did Dinosaurs Really Go Extinct?
3,807,560 views - 9 years ago
25,383
The Strange Science of Why We Dream
The Strange Science of Why We Dream
3,792,114 views - 3 years ago
25,280
What This Chart Actually Means for COVID-19
What This Chart Actually Means for COVID-19
3,769,448 views - 5 years ago
25,129
Why Salt & Pepper Ended Up On Every Table
Why Salt & Pepper Ended Up On Every Table
3,752,483 views - 8 years ago
25,016
The Science of Marathon Running
The Science of Marathon Running
3,582,538 views - 11 years ago
23,883
20 MILLION Year-Old Spider and the Science of Spider Silk
20 MILLION Year-Old Spider and the Science of Spider Silk
3,445,098 views - 7 years ago
22,967
Trying to Land a Plane (to Prove the Dunning-Kruger Effect)
Trying to Land a Plane (to Prove the Dunning-Kruger Effect)
3,373,039 views - 2 years ago
22,486
Why No One Can Agree What’s REALLY the Tallest Mountain
Why No One Can Agree What’s REALLY the Tallest Mountain
3,358,281 views - 2 years ago
22,388
 
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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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Channel Comments
Shirrako (4 minutes ago)
"Why Is Blue So Rare In Nature?"
clortz9421 (9 minutes ago)
He missed the perfect chance to say "blue-tiful"
RareVideosByJavierVargasTV (17 minutes ago)
Blue is my favorite color and it's not even real on animals.
mohammadgalihputra4081 (27 minutes ago)
Nature: "Animals can't be blue!"
naif2geeked (32 minutes ago)
So, butterflies are you blue?
PaulPaulPaulson (46 minutes ago)
This blue my mind
netviz8673 (52 minutes ago)
notes:
JeyPeyy (2 hour ago)
"Butterflies are A-W-E-S-O-M-E, make no mistake!" This is a dude who loves his job
jonathanlevitz9939 (1 hour ago)
Meanwhile in a parallel universe: A butterfly has a boxes of human corpses and says "Humans are Awesome!"
eatpant5538 (3 hours ago)
Water- Blue but not really
rhjjrtj (10 hours ago)
nature is miraculous. The way as I see it, for human being it is impossible to know all about nature, but nothing can deter me from being interested in nature
sanchayspidy (3 hours ago)
Humans: Blue is rare in nature
shaggyhascancer4489 (11 hours ago)
Butterflies be like: “It’s not about the colors, it’s about sending a message..”
Theguyvance298 (10 hours ago)
even blue LED's were hard to make
jimjankowski4313 (2 hours ago)
"Nature doesn't do halfway with blue"
tsykas (6 hours ago)
“But when I learned how this works... It kinda blue my mind”
graciousgacha (2 hours ago)
Why is blue rare in nature?
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