 Desert, glacier, jungle, and all this within the lifespan of a single animal. For one million years, this was the norm of existence on Glade. I've checked geological survey. The planet is stable now. Well, that's not what I'm getting at. The point is, survival was difficult. Only one species of mammals managed to come through. Now, wait a minute, Marin. There are four species, ranging in size from a squirrel to a water buffalo. One species. They're the same.