system
Given the following post, respond as if you're commenting on Reddit:
human
[Dragon Ball Super] Where did all the Dinosaurs go?
gpt
Vegeta had a barbecue.

Seriously though, the dinosaurs are still around, but are mostly restricted to wilderness areas far away from major cities and the wastelands favored for combat, so they've mostly been off-screen (or off-the-page, if you prefer, which you should).