The nursery walls show scenes from nature, but with images that are enhanced and unnatural. We are told the nursery has walls of glass behind which "color and fantasy" are on display.
The nursery walls reveal the technological society's divorce from the natural world. The lions are blue, the panthers are lilac, and the antelopes are pink, colors these animals would not be in real life.
In other ways, the imagery of the nursery walls confuses nature. The hive of bees is described as "matted yellow," as if it has lion's fur, while the lion is described having a "bumble" of a purr, as if he is a bee. These are subtle alterations of reality, but nevertheless suggest the way technology distorts nature:
There was the sound like a great matted yellow hive of bees within a dark bellows, the lazy bumble of a purring lion.
The nursery's decor is significant because it might suggest that separation from the natural world left humans vulnerable to a holocaust.