Placoball

This inhabitant of hot oceanic trenches floats beside the volcanic boilers and developed a rigid structure that cover the most part of its body to support the heat. This shield is formed by polysaccharides and sulfur, with short hard cilia throughout each plate that act mainly as a primary source of defense. Small canals in the areas not covered by this shield are opened to allow the gaseous and nutrients exchanges. Answering the luminous stimulations, it developed the capacity of produce a viscous secretion that covers the free portions of its external structure, emitting a tenuous blue light that assists big groups to keep joined.