Unextinction

"Pteranodon party, their evolution cycle is up on Xirdneh, in celebration of their unextinction there's a savior-class carrier chartered, and with this coupon we can chose two Gaeapod clones of our preference to be sacrificed to the initial pteranodon brood!" […]

A knowing subject may, on one hand, show complete unextinction, continue to give a conditioned reaction despite numerous non-reinforcements or he may, on the other hand, show immediate extinction and withhold a conditioned reaction despite hundreds of reinforcements.