Back to Show
It's Okay to Be Smart
Will Earth Run Out of Oxygen
Season 13
Episode 4
Plants eat sunlight and air to make life. But the key enzyme behind it all, called RuBisCO, isn’t actually all that great at its job. Let’s talk about how photosynthesis really works, why oxygen isn’t coming from where you think, and whether we can fix the biggest flaw in one of Earth’s most essential processes.
Support Provided By

9:21
The biggest thing that has ever lived on Earth… is a tree? Hard to believe, but it’s true!

15:33
We travel to Great Sand Dunes National Park to climb the largest sand dunes in America.

16:20
Another Covid Video.

13:13
Learn how different animals get their stripes.

12:05
There are parts of you that are living and dying at the same time. We find out how much.

12:31
We explore the evolutionary enigma of sex and its existence.

12:27
This episode is about the science and evolutionary history of...butts.

18:46
How do the neurons in our brain work? Find out here!

11:18
Here's the science behind why humans are warm-blooded.

12:38
This could have devastating effects on our future.

11:57
We dug a classic doc that tells the story of the transcontinental burrito hypertunnel.

19:29
We explore all the questions that teach us what's possible in evolution!