| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S2021E01 | Why Most New Species Are Discovered By Amateurs |
January 29, 2021
YouTube
|
3 | |
| S2021E02 | How Wildfires Generate "Never-Ending" Storms |
February 1, 2021
YouTube
|
3 | |
| S2021E03 | Four Reasons Our Brains Suck At Pandemics |
February 12, 2021
YouTube
|
4 | |
| S2021E04 | Dogs vs Cats: The Diversity Paradox |
February 18, 2021
YouTube
|
4 | |
| S2021E05 | The BEST Depiction of Coronavirus Is A Work of Art (literally) |
March 4, 2021
YouTube
|
7 | |
| S2021E06 | The Problem With Life Expectancy |
March 11, 2021
YouTube
|
4 | |
| S2021E07 | Why "Nothing" Matters in Science |
March 19, 2021
YouTube
|
3 | |
| S2021E08 | Which Will Kill You First? |
April 1, 2021
YouTube
|
4 | |
| S2021E09 | Proteins: Explained |
April 16, 2021
YouTube
|
4 | |
| S2021E10 | The Ecology of Superheroes |
April 22, 2021
YouTube
|
4 | |
| S2021E11 | How Do Some Waves Get SO Big? |
April 30, 2021
YouTube
|
4 | |
| S2021E12 | Why We Faint (When Other Animals Don't) |
May 4, 2021
YouTube
|
4 | |
| S2021E13 | The Mystery Of The Missing Penis |
May 13, 2021
YouTube
|
4 | |
| S2021E14 | An Unexpected Consequence of COVID |
May 26, 2021
YouTube
|
4 | |
| S2021E15 | Why It's Good To Have A Weak Hand |
June 3, 2021
YouTube
|
4 | |
| S2021E16 | We don't know what a tree is (and this video won't tell you) |
June 9, 2021
YouTube
|
3 | |
| S2021E17 | How Long Did People Use To Live? |
June 24, 2021
YouTube
|
4 | |
| S2021E18 | How Fevers REALLY Work |
July 2, 2021
YouTube
|
4 | |
| S2021E19 | Why These Bears “Waste” Food |
July 9, 2021
YouTube
|
4 | |
| S2021E20 | How To Survive Poison |
July 29, 2021
YouTube
|
3 | |
| S2021E21 | How A Whale And A Bear Beat The System |
August 5, 2021
YouTube
|
3 | |
| S2021E22 | Why Sharks Are Covered In Teeth |
August 20, 2021
YouTube
|
4 | |
| S2021E23 | Why Do Hobbits Need SEVEN Meals? |
August 26, 2021
YouTube
|
3 | |
| S2021E24 | The Place Where Time Flows Backwards |
September 9, 2021
YouTube
|
4 | |
| S2021E25 | How To Solve Every Global Crisis |
September 16, 2021
YouTube
|
4 | |
| S2021E26 | The Hurricane Category Scale Is Broken |
September 24, 2021
YouTube
|
4 | |
| S2021E27 | Hyena Butter: Everything You Did And Didn't Want To Know |
October 12, 2021
YouTube
|
2 | |
| S2021E28 | Why Fruit Is Confusing |
October 25, 2021
YouTube
|
5 | |
| S2021E29 | How Birds Almost Escalated The Cold War |
November 5, 2021
YouTube
|
4 | |
| S2021E30 | The Plankton Paradox |
November 11, 2021
YouTube
|
4 | |
| S2021E31 | Why The Shortest Day Of The Year Isn't The Coldest |
November 19, 2021
YouTube
|
4 | |
| S2021E32 | The Most Common Allergy In The World |
November 24, 2021
YouTube
|
3 | |
| S2021E33 | Why The Ocean Needs Salt |
December 3, 2021
YouTube
|
3 | |
| S2021E34 | Why The Weather Is Worse At The Mall |
December 10, 2021
YouTube
|
2 | |
| S2021E35 | Which Is Worse? |
December 20, 2021
YouTube
|
4 | |
| S2021E36 | The Cheapest Way To Save A Life |
December 22, 2021
YouTube
|
4 | |
| S2021E37 |
Why Bitcoin Is Like Reindeer Mating
season finale
|
December 24, 2021
YouTube
|
3 |
No artwork of this type.
No artwork of this type.
No artwork of this type.