SGU Episode 840

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SGU Episode 840
August 13th 2021
840 Yellowstone-Caldera.jpg
(brief caption for the episode icon)

SGU 839                      SGU 841

Skeptical Rogues
S: Steven Novella
B: Bob Novella
C: Cara Santa Maria
J: Jay Novella
E: Evan Bernstein
Quote of the Week

The earth will not continue to offer its harvest, except with faithful stewardship. We cannot say we love the land and then take steps to destroy it for use by future generations.

Pope John Paul II

Download Podcast
Show Notes
Forum Discussion


Voice-over: You're listening to the Skeptics' Guide to the Universe, your escape to reality.

News Items[edit]






(laughs) (laughter) (applause) [inaudible]

IPCC Sixth Report ()[edit]

Yellowstone Myths ()[edit]

Going to Mars ()[edit]

Spacesuit Delay ()[edit]

Scamming Teens ()[edit]

Who's That Noisy? ()[edit]

New Noisy ()[edit]



Questions/Emails/Corrections/Follow-ups ()[edit]

Question #1: Meat-eating Dinosaurs ()[edit]

Hi, Firstly: thank you for the most awesomest podcast! Every Monday I get up extra early (~3:00) in the morning so that I can listen to the new episodes while getting ready for work! Best morning of the week! Now for the question: My son, Måns, who just turned 3, is a huge dinosaur geek and knows species not even known to me (and I try to keep up and learn the names). Anyhow, he has lots of dino books that we read together almost every night. I usually ask him to tell me what kind of dinosaur this and that is. The other night I asked him to tell me if the different dinosaurs were grass- or meat-eaters (which he of course knew and happily told me). I went on to ask him HOW he knew (or thought) what they were eating. His answer was that they have pointy teeth (a quite “easy” conclusion) but also that the meat-eaters walk on two legs! I got a bit dumbstruck when I began thinking of it and couldn’t come up with a single meat-loving tetrapod, except perhaps Dimetrodon (which his books taught me are, in fact, NOT "real" dinosaurs). So, instead of consulting Google, I figured I could ask you guys first, and I told my son that I "know of some experts that I will ask!" 😁 Have a nice day and thanks again for the weekly entertainment!

– Best regards,
Emma, Sweden

Science or Fiction ()[edit]

Answer Item
Fiction Social interactions
Science Other animals' beliefs
Only humans cook food
Host Result
Rogue Guess

Voice-over: It's time for Science or Fiction.

Theme: ___
Item #1: Humans are the only animals who have a process for starting or stopping a social interaction.[6]
Item #2: To date there is no convincing evidence that animals have a theory of mind about what other animals believe.[7]
Item #3: Humans are the only animals that cook their food.[8]

_Rogue_ Response[edit]

_Rogue_ Response[edit]

_Rogue_ Response[edit]

_Rogue_ Response[edit]

_Host_ Explains Item #_n_[edit]

_Host_ Explains Item #_n_[edit]

_Host_ Explains Item #_n_[edit]

Skeptical Quote of the Week ()[edit]

The earth will not continue to offer its harvest, except with faithful stewardship. We cannot say we love the land and then take steps to destroy it for use by future generations.
Pope John Paul II (1920-2005)

Signoff/Announcements ()[edit]

S: —and until next week, this is your Skeptics' Guide to the Universe.

S: Skeptics' Guide to the Universe is produced by SGU Productions, dedicated to promoting science and critical thinking. For more information, visit us at Send your questions to And, if you would like to support the show and all the work that we do, go to and consider becoming a patron and becoming part of the SGU community. Our listeners and supporters are what make SGU possible.


Today I Learned[edit]

  • Fact/Description, possibly with an article reference[9]
  • Fact/Description
  • Fact/Description




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