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It's Okay to Be Smart
Biomass - How Much Does Life on Earth Weigh?
Season 6
Episode 17
Are humans really Earth’s most dominant species? Let’s put all of the planet’s living things on a scale and see what has amassed the most mass. This week we break down the concept of “biomass” to judge Earth’s living things from top to bottom, and see how humans have changed the world.

3:54
This week we look at how a few of these species have mastered physics to install air condi

4:47
Who built the pyramids?

4:42
This week we look at the technical and ethical hurdles behind the science of de-extinction

7:14
Since the days of Ancient Greece, philosophers and scientists have been asking Whats space
Why is the universe organized the way it is? And why is it so empty?

2:32
Why I Love PBS.

4:20
Are you a left-brained person or a right-brained person? Spoiler: You’re neither.

3:58
How do we comprehend a storm like Hurricane Harvey? Let's put it into perspective.

5:18
Learn why we can’t look directly at DNA. Find out how DNA is actually packed inside cells.

3:34
Poop, throughout nature, shapes the world in ways you might not imagine.

5:00
Earth has seasons, but what about the rest of the planets in the solar system?

5:21
News about climate change is often full of doom, guilt, and anxiety.