What is "stayers"

Usage examples of "stayers".

Ianna had given birth to her in the old old way, had suckled her and kept her close until she was old enough to go into intensive training in the labs and automated factories that turned out the starships and other equipment the Strays needed and the Stayers coveted.

Loguisse nodded, then warned Shareem that they had better deal with Kell soon, since he was making considerable progress among the Stayers, turning them against Aleytys, and his converts were trying to pressure the Tetrad to revoke her acceptance.

He turns out to breed better stayers than sprinters, and the world is mad nowadays for very fast two-year-olds.