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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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4:16
How do we protect what we don’t know exists?

5:54
A brief history of time…

8:06
What *is* a species anyway? And how do you know if you’ve found a new species?

5:35
Nuclear weapons represent the darker side of E=mc^2.

5:23
Join the #AnythingButPepper movement!

5:03
Vision impairment is common in humans, so why not the rest of the animal kingdom?

5:45
Mosquitos have been dangerous for, well... forever. So what's new about Zika?

4:41
Spit is critical for our health. Actually.

6:32
A song of ants and fire
and ant-decapitating flies.

6:25
Video games are still on the rise. Can you take the heat?

7:18
From fire to food, check out these life-altering reactions that surround us everyday.

3:27
The lingerling radiation from the ancient universe still surrounds us to this day.