Corrected entry: Doctor Gregory is giving the class a lecture about ants. But he projects an image of a beetle onto the wall behind him. (00:01:40)
Corrected entry: At the end of the episode, "Teachers Pet," Buffy picks Dr. Gregory's glasses from off the floor, opens the closet where his lab coat is hanging and places the glasses in the pocket. As she closes the door, the camera moves to the bottom of the closet and you can see about four or five bug eggs, one of them cracks open and then the show ends. What happened with the eggs?
Correction: We don't know, but there are numerous possibilities. The simplest one is that without the care of their mother, the eggs or the newborns were not able to survive.
Correction: Actually there was a beetle and an ant in the projection behind him, he even points to the ant just before he turns the projector off.