During their last month of duty, Sanza asked him, "Will everything die here but us? The green birds and the big eaters of flesh? The funny little trees and the hairy caterpillar?"
"I hope not," said Jarry. "I've been reading back through the biologists' notes. I think life might adapt. Once it gets a start anywhere, it'll do anything it can to keep going. It's probably better for the creatures of this planet we could afford only twenty Worldchangers. That way they have three millennia to grow more hair and learn to breathe our air and drink our water. With a hundred units we might have wiped them out and had to import coldworld creatures or breed them. This way, the ones who live here might be able to make it."
"It's funny," she said, "but the thought just occurred to me that we're doing here what was done to us. They made us for Alyonal, and a nova took it away. These creatures came to life in this place, and we're taking it away. We're turning all of life on this planet into what we were on our former worlds - misfits."
-- Roger Zelazny. "The Keys to December"