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 beasts in check.  Join our Patreon for Ad-Free stories, a Shout-Out on the show, bonus audio, a better chance of having your question answered, and more! patreon.com/whatifworld Subscribe to What If World wherever you listen: link.chtbl.com/whatifworld. Share questions via Twitter @whatifworldpod, Facebook @whatifworldpodcast, Instagram @whatifworldpodcast, or email whatifworldpodcast@gmail.com What If World is made by Eric O’Keeffe with help from Karen O'Keeffe. Our theme song is by Craig Martinson and our podcast art is by Jason O’Keefe. Additional songs and sound effects from audioblocks.com.