The hybrids have been stuck in captivity in the zoo (which is now being overrun with last men), locked in a room which is only opened to take them out to experiment them or bring in new hybrids. The food is brought down a chute and lands in a tray.

You are a hybrid. You had just been captured and thrown into the large cell by a last man. You collapsed onto the ground and the door slammed shut behind you. The others crowd around you, scrambling to get a simple glimpse of this new hybrid…