Excerpt from Total Amnesia:

HISTORY LESSON ON DINOSAURS:

“Wow!  This is interesting!” he says, “This has to be one of the more diverse planets in the galaxy.  They have more strange varieties of creatures here than you have in that brain of yours.  You know the famous Zuell and Crock traveling circus?  This is where they bred those dinosaurs some 300 deci-terms ago―right here!  

"The moved them a few hundred deci-terms to a planet with a better environment.  Then they brought in the humanoids."

"And there went the neighborhood!" said Salso. "Big mistake.  So they're moving them out."

"It's about time", says Bisto.