"You can't clear it out," said Gordy. "It's rank stuff, a sort of crabgrass with a particularly tough root. I can't even cut it. It's all around here, and it's spreading."
De Terry grimaced. "Mutation?"
"I think so. And look." Gordy beckoned to the other man and led him to the very edge of the cleared area. He bent down, picked up something red and wriggling between his thumb and forefinger.
De Terry took it from his hand. "Another mutation?" He brought the thing close to his eyes. "It's almost like an ant," he said. "Except—well, the thorax is all wrong. And it's soft-bodied." He fell silent, examining the thing.
He said something under his breath, and threw the insect from him. "You wouldn't have a microscope, I suppose? No—and yet, that thing is hard to believe. It's an ant, but it doesn't seem to have a tracheal breathing system at all. It's something different."
"Everything's different," Gordy said. He pointed to a couple of abandoned rows. "I had carrots there. At least, I thought they were carrots; when I tried to eat them they made me sick." He sighed heavily. "Humanity has had its chance, John," he said. "The atomic bomb wasn't enough; we had to turn everything into a weapon. Even I, I made a weapon out of something that had nothing to do with war. And our weapons have blown up in our faces."
De Terry grinned. "Maybe the ants will do better. It's their turn now."
"I wish it were." Gordy stirred earth over the boiling entrance to an anthole and watched the insects in their consternation. "They're too small, I'm afraid."
"Why, no. These ants are different, Dr. Gordy. Insects have always been small because their breathing system is so poor. But these are mutated. I think—I think they actually have lungs. They could grow, Dr. Gordy. And if ants were the size of men ... they'd rule the world."
"Lunged ants!" Gordy's eyes gleamed. "Perhaps they will rule the world, John. Perhaps when the human race finally blows itself up once and for all...."