In the prehistoric valley, Peg + Cat learn about patterns and diagrams while being chased by a baby T-Rex.


  • Peg
  • Cat
  • Stegosaurus
  • Triceratops
  • Brachiosaurus
  • Baby T-Rex


  • Peg + Cat Theme Song
  • Problem Solved
  • Step Step Bounce
  • Do it like I Drew it In the Diagram

Section headingEdit

  • "When Dinosaurs Walked the Earth" is a reference to the 1970 B-Movie, "When Dinosaurs Ruled the Earth."