The Quest for the Hidden Planets with Joel Gr...

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 ...  Show more

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

On today's episode, the Explorers Troop head to another planet, but this time with a number of guests in tow. Finn and Foggy make up, but Voltronix Zu isn't exactly ingratiating himself to the Explorers Troop on the trip. The Alien Adventures of Finn Caspian is a sci-fi story pod ...  Show more

The Alien Adventures of Finn Caspian is a sci-fi story podcast for kids. Many thanks to Mark Greenberg of the Mayfair Workshop for his theme music. Other music is by Visager, used via Creative Commons. Send your sounds, art and jokes to earth@finncaspian.com. For more great shows ...  Show more

The explorers land on a planet with a few familiar faces.The Alien Adventures of Finn Caspian is a sci-fi story podcast for kids. Many thanks to Mark Greenberg of the Mayfair Workshop for his theme music. Other music is by Visager, used via Creative Commons. Send your sounds, art ...  Show more

The Alien Adventures of Finn Caspian is a sci-fi story podcast for kids. Many thanks to Mark Greenberg of the Mayfair Workshop for his theme music. Other music is by Visager, used via Creative Commons. Send your sounds, art and jokes to earth@finncaspian.com. For more great shows ...  Show more