DAWNWORLD E885000-0 Rob Dean (robdean@access.digex.net) Dawnworld has remained uncolonized to the present due to a clus- ter of related ecological factors. On a microlevel, most humans experience an allergic reaction to common Dawnworld pollens. In addition, in some regions, airborne spores exist that will sprout in human lungs. Most plants use L-rotary sugars and are nutritionally useless. The fauna in the planet's current epoch runs to dinosaur- like creatures, the largest of which pose a threat to humans from sheer size. In many of the smaller animal niches, cold blooded crea- tures predominate, allowing for a much higher carnivore population that would otherwise be the case. Perversely, while humans are poi- sonous to native creatures, they also smell tasty. There is currently (1107) a small exploratory colonization mis- sion from Horosho established on a small island (10 by 20 miles), working on various ways of keeping the large fauna away from human habitations in a way that won't cause more problems. (Just shooting them and leaving the carcasses to rot doesn't work well because many of the medium to large scavengers will also attack live prey--i.e. humans.)