Why did T. Rex have such tiny arms? That’s what our listener Nora wants to know. We’re going to find out why the biggest, most powerful predator to ever walk the Earth did it with a teeny tiny set of arms.
Scientists have been coming up with answers for this question for decades — but science is never settled. Paleontologist Elizabeth Steell has walked into ... Show More
Sep 4
Mailbag: Why Does the Left Brain Control the Right Side of Your Body? Are Dinosaurs Reptiles or Birds?
In this final mailbag episode of Summer 2026, Marshall and Lindsay address two listener questions, and learn about a surprising twist of evolution. Plus, listener reviews and comments! To get an invite to the next Tumble meetup, as well as receive birthday shout outs and ad free ... Show More
18m 12s
Apr 2019
Mystery Sound Extravaganza 2019
This episode is an ear-tickler! Guess your way through eleven mystery sounds — one from a scientist, and ten from listeners like you! Plus, another mystery: what’s making Marc and Sanden dance to the sounds of a door jamb and a printer? Stick around for all these reveals, and the ... Show More
33m 39s
Nov 2022
Bobby Wonder Presents: National STEM Day
In honor of National STEM Day, Bobby Wonder teams up with Lucy Wow for a special time-traveling adventure!If you'd like to learn more about the life of William and Caroline Herschell and their amazing discoveries, be sure to check out one of our favorite podcasts, Bedtime History ... Show More
21m 54s
Nov 2022
Lucy Wow Presents: National STEM Day
In honor of National STEM Day, Lucy Wow teams up with Bobby Wonder for a special time-traveling adventure!If you'd like to learn more about the life of William and Caroline Herschell and their amazing discoveries, be sure to check out one of our favorite podcasts, Bedtime History ... Show More
21m 54s
Aug 2019
Wow in the World + The Story Pirates in Do You SEE What I HEAR? (Encore - 8/19/19)
This week, it's a double scoop of our first ever, Wow in the World Podcast Scrambler! In this episode, Guy Raz and Mindy team up with the Story Pirates Podcast to explore the latest science behind SYNESTHESIA! Taste words, hear colors, feel sounds? What in the world is happening ... Show More
39 m