"A plant society would be a strange one," said Scott. "A sort of totalitarian society. Not the kind of a society animals would build ... for an animal is an individual and a plant is not. In a plant race individuality would count for nothing, the race would count for everything. The driving force would be the preservation and advancement of the race as a whole. That would make a difference." Hugh glanced up sharply. "You're damned right that would make a difference," he said. "They would be a deadly race. Once they got started, nothing could stop that singleness of purpose." His face seemed to blanch under the tan. "Do you realize what's happening?" he shouted. "For millions of years these plants have fought for bare existence on Mars. Every ounce of their effort has been toward race preservation. Every fall the bugs carefully gather all the seeds and carry them inside the building, bring them out and plant them in the spring. If it hadn't been for some arrangement like that they probably would have died out years ago. Only a few scattered patches of them left now...." "But on Earth...." said Scott. And the two of them, white-faced, stared at one another. On Earth the Martian lilies would not have to carry on a desperate fight for their very existence. On Earth they had plenty of water, plenty of sunlight, plenty of good, rich soil. On Earth they grew larger and stronger and straighter. Under such conditions what would be the limit of their alien powers? With the lilies multiplying each year, growing in every fence row, every garden, crowding out the farmers' crops, lining every stream, clogging every forest ... with swarm after swarm of the metallic bugs driving out into space, heading for the Earth ... what would happen? How long would the lilies wait? How would they attack? Would they simply crowd out every other living thing, conquering by a sort of population pressure? Or would they develop more fully those powers of forcing animal minds to do their bidding? Or did they have, perhaps, even stronger weapons? "Hugh," Scott rasped, "we have to warn Earth. Somehow we have to let them know." "Yes," Hugh agreed, "but how?" Together, limned against the harsh horizon, they stood, looking across the desert toward the Martian building. Tiny figures, dimmed by distance, scurried about the building. Scott squinted his eyes against the desert glare. "What are those?" he asked. Hugh seemed to jerk out of a trance. "The machines again," he said wearily. "They're getting ready to shoot another rocket out to Earth. It'll be the last one of the season. Earth is drawing away again." "More seeds," said Scott. Hugh nodded. "More seeds. And more bugs going out. And the worst of it is that Earth doesn't know. No man in his right mind on Earth could even dimly speculate upon the possibility of high intelligence in plant life. There's no reason to. No precedent upon which to base such a speculation. Earth plants have never had intelligence."