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It's Okay to Be Smart

Are Some Species More Important Than Others?

We explore the universal rules of life that tie together Earth’s living systems. Traveling from Africa’s Serengeti plains to the nearly extinct prairies of the western U.S. to discover the unexpected species that determine the very existence of these places. Can an ecosystem survive without its keystone species? Can we restore endangered human cultures by bringing back a nearly-extinct ecosystem?

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Season
Why Do We Cry?
4:20
Why do we cry? It’s weird.
The Surprising Reason We Eat Spicy Food
5:37
Spices have special powers that make them a truly magical superfood!
The Science of Farts
5:07
Whatever you call it, flatulence, passing gas...it's natural and here's how it works.
Biomass - How Much Does Life on Earth Weigh?
6:24
We break down the concept of “biomass” to judge Earth’s living things from top to bottom.
What’s The Hottest Hot and Coldest Cold?
5:11
Weird things happen at extreme hot and absolute cold.
The Strange Evolutionary Story of the Thylacine
7:48
Here’s the science of convergent evolution!
Where Did Earth's Water Come From?
4:13
The origin of water traces beyond the solar system to the earliest days of the universe!
This Salamander Can Regrow Limbs Like Deadpool
7:16
Axolotls are special salamanders because they can regenerate entire limbs!
Why Do We Itch?
4:59
We explore how and why itching help!
How Your Memory Works
8:19
How does memory work? And how does… un-memory work?
97% of Climate Scientists Really Do Agree
6:35
Here’s what the 97 percent statistic *really* means.
Where Did Life Come From?
12:46
Let’s journey back to the origin of life to explore the most important mysteries!
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