In the prehistoric valley, Peg + Cat learn about patterns and diagrams while being chased by a baby T-Rex.
- Michelle Creber
- Claire Corlett
- Baby T-Rex
- Peg + Cat Theme Song: Take My Hand by Tara Strong
- Problem Solved
- Step Step Bounce
- Do it like I Drew it In the Diagram
- Peg + Cat Closing Song: Take My Hand (Reprise) by Tara Strong
- "When Dinosaurs Walked the Earth" is a reference to the 1970 B-Movie, "When Dinosaurs Ruled the Earth."
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