What would the world be like without animals? Rae Wynn Grant - ecologist, podcaster, and bear cub cuddler - gives us a picture of what would happen if animals disappeared, and explains how we can stop it from happening. We’ll find out how the Endangered Species Act has worked for over 50 years to save endangered species, and how we can make it even better fo ... Show More
Today
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 2024
Bear Encounters in Nevada and Chasing Poachers on the Masai Mara
Traveling everywhere from the savannahs of Tanzania to the mountains of Montana, Dr. Rae Wynn Grant is on a mission to save the world’s most endangered species. Lale chats with the wildlife ecologist, podcaster, author and co-host of Mutual of Omaha’s Wild Kingdom to hear stories ... Show More
36 m
Jan 2017
Levi asks: What if trains were never made?
Take a ride on the Rex Express this week as we find out how the world might work without any trains. Plus... dinosaurs! We'll meet Q-Rex, a young dinosaur with insatiable curiosity, Pops-Dino, his stubborn dad, and Tara Dactyl, the crotchety old flier who keeps all the other beas ... Show More
19m 57s