Rex first came on the scene in season 7. Rex is the dinosaur expert of the group and he helps the Paw Patrol on their missions that involve dinosaurs. He's a Bernese Mountain Dog, which is a large ...

he calls in and assists the PAW Patrol for missions surrounding the bay and the marine animals who live there. Rex is a Bernese mountain dog who lives in the Dino Wilds, where dinosaurs still roam ...