I began to draw concentric arcs on the chart.

"I kept fetching water and testing and retreating all the way back to the plain. Pretty soon there's not going to be any place safe within miles of where these mutants can take root. Near the plain's camp, they're still innocuous—the original species. The propagation response is triggered by rain, all right, but the seeds just pop out, and, of course, the poison is undoubtedly weak—a bother only to insects."

"But they weren't a problem—" Moya interjected.

"Time," I said. "Five years. Look here on the chart. I figured this to be the center: the first team's permanent camp on the hill. Now what happened there? Heaters to destroy immediate vegetation, and Radio-Frequency beams to kill insects and their larvae over a wider area. R-F—don't you see? Cells react to certain portions of the radio spectrum. Some are destroyed, depending upon intensity. Some behave strangely—the 'marching protozoa,' the 'dancing amoeba.' In others, chromosomal aberrations occur, resulting in mutations. Remember the experiments with yeasts, garlic, grains? The growth of some microorganisms is stimulated by R-F irradiation."

"Then these glorified flytraps got mad at what was happening to their innards and decided to fight even harder for survival?"

"You're anthropomorphizing," I told Moya, "but that's the way I see it. They just responded along already established lines."

I paused and noted the expressions on the faces of the crew. Maybe it was that, and maybe it was the fact that my leg hadn't held up very well under the beating I'd given it. And maybe it was twelve good men—Anyway, I spent the next half hour pulling no punches. When I'd finished, Interstel had regained its reputation. Nobody—neither short-timer nor veteran—likes to hear dead comrades characterized as "stupid." But I figured the crew would remember.

Moya seemed unfazed, as if he'd paid scant attention to my speech; he rubbed his chin reflectively.

"The bug suits—"

"Were they any protection? At long range, probably. But up close—"