| S2023E01 |
Why do you want to squeeze cute things? - Joshua Paul Dale
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January 3, 2023
YouTube
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6
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| S2023E02 |
Why do beavers build dams? - Glynnis Hood
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January 5, 2023
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5
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| S2023E03 |
History vs. Thomas Jefferson - Frank Cogliano
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January 10, 2023
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6
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| S2023E04 |
The bizarre world of parasitic wasps - Miles Zhang
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January 12, 2023
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6
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| S2023E05 |
Mao Zedong's infamous mango cult - Vivian Jiang
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January 17, 2023
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7
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| S2023E06 |
When are you actually an adult? - Shannon Odell
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January 19, 2023
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5
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| S2023E07 |
How to deal with rejection
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January 24, 2023
YouTube
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5
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| S2023E08 |
Can you steal the most powerful wand in the wizarding world? - Dan Finkel
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January 26, 2023
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5
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| S2023E09 |
Ethical dilemma: Should we get rid of mosquitoes? - Talya Hackett
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January 31, 2023
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5
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| S2023E10 |
What is Juneteenth, and why is it important? - Karlos K. Hill and Soraya Field Fiorio
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February 2, 2023
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5
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| S2023E11 |
One of the most "dangerous" men in American history - Keenan Norris
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February 7, 2023
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6
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| S2023E12 |
How do airplanes stay in the air? - Raymond Adkins
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February 9, 2023
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5
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| S2023E13 |
Can you freeze your body and come back to life? - Shannon N. Tessier
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February 14, 2023
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6
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| S2023E14 |
How to manage your emotions
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February 16, 2023
YouTube
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5
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| S2023E15 |
One of the most banned books of all time - Mollie Godfrey
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February 21, 2023
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5
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| S2023E16 |
Ice Age mummies frozen in time - Brendan Rogers and Jessica Howard
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February 23, 2023
YouTube
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6
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| S2023E17 |
What if you experienced every human life in history?
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February 28, 2023
YouTube
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5
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| S2023E18 |
The continents are moving. When will they collide? - Jean-Baptiste P. Koehl
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March 2, 2023
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5
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| S2023E19 |
6 myths about the Middle Ages that everyone believes - Stephanie Honchell Smith
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March 7, 2023
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5
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| S2023E20 |
How horses changed history - William T. Taylor
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March 9, 2023
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6
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| S2023E21 |
What happens if an engineered virus escapes the lab?
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March 14, 2023
YouTube
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6
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| S2023E22 |
What would happen if you lost your sense of touch? - Antonio Cataldo
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March 16, 2023
YouTube
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6
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| S2023E23 |
A day in the life of a medieval teenage pilgrim - Birte Kristiansen and Petra Sijpesteijn
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March 21, 2023
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5
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| S2023E24 |
When you're an ant but also a fungus tycoon - Charles Wallace
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March 23, 2023
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5
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| S2023E25 |
This one weird trick will get you infinite gold - Dan Finkel
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March 28, 2023
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5
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| S2023E26 |
How stretching actually changes your muscles - Malachy McHugh
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March 30, 2023
YouTube
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5
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| S2023E27 |
The most important century in human history
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April 4, 2023
YouTube
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5
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| S2023E28 |
How does this all-female species reproduce? - Susana Freitas and Darren Parker
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April 6, 2023
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6
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| S2023E29 |
The epic tale of the wind goddess' gift - Sydney Iaukea
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April 11, 2023
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6
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| S2023E30 |
What is a poop transplant, and how does it work? - Kathryn M. Stephenson and David L. Suskind
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April 13, 2023
YouTube
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6
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| S2023E31 |
Whatever happened to the hole in the ozone layer? - Stephanie Honchell Smith
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April 18, 2023
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5
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| S2023E32 |
Why do we eat popcorn at the movies? - Andrew Smith
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April 20, 2023
YouTube
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5
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| S2023E33 |
Can zoos save species from extinction? - Nigel Rothfels
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April 25, 2023
YouTube
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5
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| S2023E34 |
The records the British Empire didn't want you to see - Audra A. Diptée
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April 27, 2023
YouTube
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5
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| S2023E35 |
Why do we have crooked teeth when our ancestors didn’t? - G. Richard Scott
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May 2, 2023
YouTube
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5
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| S2023E36 |
The rise and fall of the Mughal Empire - Stephanie Honchell Smith
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May 4, 2023
YouTube
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5
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| S2023E37 |
What's missing in medical research? - Greg Foot
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May 9, 2023
YouTube
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6
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| S2023E38 |
Why were there three popes at the same time? - Joëlle Rollo-Koster
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May 11, 2023
YouTube
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6
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| S2023E39 |
The year without summer - David Biello
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May 16, 2023
YouTube
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6
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| S2023E40 |
Is it normal to talk to yourself?
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May 18, 2023
YouTube
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5
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| S2023E41 |
4 epidemics that almost happened (but didn't) - George Zaidan
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May 23, 2023
YouTube
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6
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| S2023E42 |
Can you outsmart Fate and break her ancient curse? - Dan Finkel
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May 25, 2023
YouTube
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5
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| S2023E43 |
One of literature’s most confusing writers - Sascha Morrell
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May 30, 2023
YouTube
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5
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| S2023E44 |
Test yourself: Can you tell the difference between music and noise? - Hanako Sawada
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June 1, 2023
YouTube
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5
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| S2023E45 |
Food expiration dates don’t mean what you think - Carolyn Beans
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June 6, 2023
YouTube
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5
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| S2023E46 |
What did people do before anesthesia? - Sally Frampton
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June 8, 2023
YouTube
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5
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| S2023E47 |
Are you able to see faces in everyday objects? - Susan G. Wardle
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June 13, 2023
YouTube
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5
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| S2023E48 |
Who is the fastest creature in mythology? - Iseult Gillespie
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June 15, 2023
YouTube
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6
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| S2023E49 |
Why is Marie Antoinette so controversial? - Carolyn Harris
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June 20, 2023
YouTube
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6
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| S2023E50 |
Are solar panels worth it? - Shannon Odell
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June 22, 2023
YouTube
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6
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| S2023E51 |
What caused the Rwandan Genocide? - Susanne Buckley-Zistel
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June 27, 2023
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6
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| S2023E52 |
Gravity vs. Pressure: Which is stronger? - Fabio Pacucci
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June 29, 2023
YouTube
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5
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| S2023E53 |
Why did Megalodon go extinct? - Jack Cooper and Catalina Pimiento
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July 3, 2023
YouTube
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5
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| S2023E54 |
Can you solve the time traveling car riddle? - Dan Finkel
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July 6, 2023
YouTube
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5
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| S2023E55 |
Can other animals understand death? - Barbara J. King
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July 11, 2023
YouTube
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6
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| S2023E56 |
What's happening to Earth's core? - Shannon Odell
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July 13, 2023
YouTube
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6
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| S2023E57 |
One of history's most dangerous myths - Anneliese Mehnert
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July 18, 2023
YouTube
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5
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| S2023E58 |
The rise and fall of Italy’s warriors-for-hire - Stephanie Honchell Smith
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July 20, 2023
YouTube
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5
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| S2023E59 |
Science vs. Pseudoscience - Siska De Baerdemaeker
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July 25, 2023
YouTube
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6
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| S2023E60 |
How to enter flow state
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July 27, 2023
YouTube
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5
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| S2023E61 |
How dangerous was it to be a jester? - Beatrice K. Otto
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August 1, 2023
YouTube
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5
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| S2023E62 |
Why your phone battery gets worse over time - George Zaidan
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August 3, 2023
YouTube
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5
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| S2023E63 |
What happens if you don’t put your phone in airplane mode? - Lindsay DeMarchi
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August 8, 2023
YouTube
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5
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| S2023E64 |
Whoever builds something here will be rich beyond measure - Fabio Pacucci
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August 10, 2023
YouTube
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5
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| S2023E65 |
How the water you flush becomes the water you drink - Francis de los Reyes
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August 15, 2023
YouTube
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5
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| S2023E66 |
A 5,300-year-old murder mystery - Albert Zink
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August 17, 2023
YouTube
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5
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| S2023E67 |
Which is better for you: "Real" meat or "fake" meat? - Carolyn Beans
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August 22, 2023
YouTube
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5
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| S2023E68 |
Can alligators survive this apex predator? - Kenny Coogan
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August 24, 2023
YouTube
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5
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| S2023E69 |
The one thing stopping jellyfish from taking over - Mariela Pajuelo & Javier Antonio Quinones
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August 29, 2023
YouTube
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6
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| S2023E70 |
Why is it so hard to break a bad habit?
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August 31, 2023
YouTube
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5
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| S2023E71 |
This is what happens when you hit the gas - Shannon Odell
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September 5, 2023
YouTube
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6
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| S2023E72 |
Can you solve the cursed dice riddle? - Dan Finkel
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September 7, 2023
YouTube
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5
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| S2023E73 |
Can you change your sleep schedule?
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September 12, 2023
YouTube
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5
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| S2023E74 |
What happens when you fall into piranha-infested waters? - Antonio Machado-Allison
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September 14, 2023
YouTube
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5
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| S2023E75 |
Why is this black square famous? - Allison Leigh
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September 19, 2023
YouTube
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6
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| S2023E76 |
The best pregnancy test used to be this frog ... no, really - Carly Anne York
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September 21, 2023
YouTube
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5
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| S2023E77 |
Do mosquitos actually bite some people more than others? - Maria Elena De Obaldia
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September 26, 2023
YouTube
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5
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| S2023E78 |
The conspiracy to take down the Inca empire - Gabriel Prieto
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September 28, 2023
YouTube
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5
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| S2023E79 |
Ethical dilemma: What makes life worth living? - Douglas MacLean
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October 3, 2023
YouTube
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5
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| S2023E80 |
What would happen if everyone stopped eating meat tomorrow? - Carolyn Beans
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October 5, 2023
YouTube
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5
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| S2023E81 |
Surviving the coldest place on Earth - Nadia Frontier
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October 10, 2023
YouTube
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4
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| S2023E82 |
3 tips on how to study effectively
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October 12, 2023
YouTube
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5
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| S2023E83 |
What do these numbers actually mean? - Shannon Odell
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October 17, 2023
YouTube
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6
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| S2023E84 |
How to overcome your mistakes
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October 19, 2023
YouTube
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5
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| S2023E85 |
A tour of the ancient Greek Underworld - Iseult Gillespie
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October 24, 2023
YouTube
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6
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| S2023E86 |
The dark history of werewolves - Craig Thomson
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October 26, 2023
YouTube
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5
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| S2023E87 |
Japan's scariest ghost story - Kit Brooks
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October 31, 2023
YouTube
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6
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| S2023E88 |
What really caused the Irish Potato Famine - Stephanie Honchell Smith
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November 2, 2023
YouTube
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5
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| S2023E89 |
Can you solve the secret assassin society riddle? - Alex Rosenthal
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November 7, 2023
YouTube
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5
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| S2023E90 |
Sherlock Holmes and the case of the Red-Headed League - Alex Rosenthal
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November 9, 2023
YouTube
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5
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| S2023E91 |
What really killed the dinosaurs? (It wasn’t just the asteroid) - Sean P. S. Gulick
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November 14, 2023
YouTube
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5
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| S2023E92 |
The gory history of barber surgeons - Stephanie Honchell Smith
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November 16, 2023
YouTube
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6
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| S2023E93 |
Something weird is happening in our galaxy - Ashkbiz Danehkar
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November 20, 2023
YouTube
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5
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| S2023E94 |
Why did the US try to kill all the bison? - Andrew C. Isenberg
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November 21, 2023
YouTube
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5
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| S2023E95 |
The diseases that changed humanity forever - Dan Kwartler
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November 28, 2023
YouTube
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6
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| S2023E96 |
How to make smart decisions more easily
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November 30, 2023
YouTube
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5
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| S2023E97 |
How did South African Apartheid happen, and how did it finally end? - Thula Simpson
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December 5, 2023
YouTube
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7
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| S2023E98 |
The rights you might not realize you have - Shannon Odell
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December 7, 2023
YouTube
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5
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| S2023E99 |
The largest river on Earth is actually in the sky - Iseult Gillespie
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December 12, 2023
YouTube
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6
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| S2023E100 |
What the biggest brain on Earth can do - David Gruber and Shane Gero
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December 14, 2023
YouTube
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6
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| S2023E101 |
Does planting trees actually cool the planet? - Carolyn Beans
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December 19, 2023
YouTube
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6
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| S2023E102 |
The science of laughter - Sasha Winkler
season finale
|
December 21, 2023
YouTube
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6
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