The maer split from its ancestor, the gildbowl, though replacing it in all marine biomes. With the airbulb out-competing it on land, the gildbowl adapted to life in the water. The continuation of the Oathinian Explosion, along with two and a half million years of evolution has largely changed the anatomy of the maer. Its membrane has grown thicker, resembling the bottom half of the organism. Its single root-stalk has grown smaller in proportion to the organism, and more are found around the bottom of the organism. When the organism has grown large enough, the sun, heating the air inside the organism, allows the maer to float high above the water. The cells will then seperate, with clumps of cells going on to form new maers. It lives almost exclusively in still-water regions, though some can still be found in Negative Polar River in areas of the river that have slower moving water.