After the little turtle entered the water, a faint blue halo emanated from its body. A shield of energy slowly rose from the edge of its shell, and after a moment, a faint blue, hollow 'airbag' formed on its back. This airbag, released by the silicon-based turtle, was made of special energy, capable not only of waterproofing but also of filtering air underwater.
Silicon-based turtles are silicon-based life forms, not carbon-based. Their body structure is similar to glass or crystal. Due to their excessive mass, which means they are too heavy, they do not float in water. Instead of drifting along with the ocean currents, they would sink straight to the bottom upon entering the water.
Thus, they specialized in developing this airbag to provide buoyancy. Moreover, the airbag could freely expel and filter air under the water, managing its buoyancy effortlessly. This allowed the silicon-based turtles the freedom to move around in the water.
