Ancient astronauts landed on Earth 65 million years ago, exterminating everything with dull laser guns. They trudged slowly through the swamp, the hell of a planet where the best creatures in that environment were giant lizards. Deciding them too ridiculous to live, the astronauts walked across the supercontinents, gnashing their terrible teeth and rolling their terrible eyes as they did so. They were disgusted at the feathered dinosaurs or the insects the size of dogs, shooting pathetic lasers through the fog. A few of their ships were attacked once and forced to be abandoned at the same site as the pyramids are today.
