Season 5
Does Someone Else Have Your Face?
They say everyone has a doppelgänger, but is that really true?
Does Someone Else Have Your Face?
Can We Get Older Without Aging?
What do other life forms have to teach us about staying alive as we get old?
Can We Get Older Without Aging?
The Dinosaur On Your Thanksgiving Table
Eating turkey this holiday season? You’re eating a dinosaur!
The Dinosaur On Your Thanksgiving Table
The Deadliest Flu Season in History?
The 1918 Flu outbreak killed 5% of the world's population--could it happen again?
The Deadliest Flu Season in History?
The Largest River On Earth Is In The Sky
Scientists have discovered the largest river on Earth, and it’s in the sky above.
The Largest River On Earth Is In The Sky
Teeth are made from some biological nanotechnology that will blow your mind.
Where Do Teeth Come From?
What Do Raindrops Really Look Like?
Raindrops are shaped like teardrops, right? Wrong! Let's discover rain's true shape.
What Do Raindrops Really Look Like?
Turns out the inheritance of height is a lot more complicated than we thought.
Is Height All in Our Genes?
Will You Still Eat Raw Fish After Watching This Video?
Ever wondered why restaurants warn you about raw or undercooked seafood on their menus?
Will You Still Eat Raw Fish After Watching This Video?
Got a bad habit you can’t break? That’s because it’s literally wired into your brain.
How Habits are Formed
English is confusing. Its irregular verbs can teach us a lot about how languages evolve.
How Some Words Get Forgetted
Why Do Disney Princesses All Look Like Babies?
Why do we find things cute? Let's take a scientific look.
Why Do Disney Princesses All Look Like Babies?
3 Incredible Examples of Evolution Hidden In Your Body
Here are some stories of how evolution and natural selection made you the way you are.
3 Incredible Examples of Evolution Hidden In Your Body
The Surprising Reason We Eat Spicy Food
Spices and other plant ingredients have powers that make them truly magical superfoods!
The Surprising Reason We Eat Spicy Food
Which Life Form REALLY Dominates Earth?
This week we break down the concept of “biomass” to judge Earth’s living things.
Which Life Form REALLY Dominates Earth?
What’s The Hottest Hot and Coldest Cold?
Weird things happen at extreme hot and absolute cold.
What’s The Hottest Hot and Coldest Cold?
The Cosmic Origins of Earth's Water
The origin of water traces beyond the solar system to the earliest days of the universe.
The Cosmic Origins of Earth's Water
The Deadpool Salamander That Can Regrow Limbs
Axolotls are special salamanders. They can regenerate entire limbs!