Mailbag: How Do Stem Cells Decide What to Become? What's Morse Code?

Mailbag: How Do Stem Cells Decide What to Become? What's Morse Code?

August 7, 2026 · 24 min

About this episode

In this episode, Marshall and Lindsay answer kid questions about stem cells, chameleons, and Morse code with insights from various experts.

In this special summer mailbag episode, Marshall and Lindsay help answer three kid questions: How do stem cells decide what to become? How do chameleons change color? and... What is Morse code? This special episode features answers from Jessica Whited, Michel Milinkovich, and Mick Sullivan, from The Past and the Curious! As well as a roundup of listener reviews, and more! For more information about Tumble, go visit our website at sciencepodcastforkids.com. To send us a question and get it answered on our show, go to https://tumble.science/Question. Also support us on Patreon! patreon.com/tumblepodcast

People in this episode

Hosts: Marshall, Lindsay

Guests: Jessica Whited, Michel Milinkovich, Mick Sullivan

Topics covered

Keywords

Mentioned in this episode

Organizations: The Past and the Curious, Tumble, Tumble Media, Patreon

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