The first of the giants is the Extreme Density Ulot (EDU). The EDU is 100 meters long on average and wildly varying widths due to their augmented internal processes (their digestive processes manipulate internal topography drastically). The EDU work symbiotically with the nano-tech of ON, bringing it to locations that are difficult to get to (mainly the ocean density locations which other species cannot, even going so far that the Lombit cannot follow), even for this hyper-advanced technology, while conversely, the nano-tech heals wounds inflicted to the EDU by the DOS, or even the Seebolit. While they seem to do this exchange quite regularly the EDU's biochemistry shows no signs of technological components when they are not transporting nano-tech, indicating a very precise agreement between the species. For food the EDU filter a variety of minerals from the water in lower density zones, often sustaining attacks by much smaller species in which they try to prove their mettle.