Swimming Radiocritter

The Swimming Radiocritter evolved from some young Leafed Radiomolds who landed in the ocean, which were then carried by currents. To survive being eaten by local predators, they lost their ability to produce adhesive secretions and use their leaf-like lobes to swim. This would lead to the evolution of the Swimming Radiocritter, which is still a multicellular organism with lobes that still help take in large amounts of sun light and spite for energy along with radiation. The Swimming Radiocritter still retains a cell-wall like structure around their cells, though they are vestigial since they do not live out of water. Just like their ancestors, the nucleus membrane of a Swimming Radiocritter cell incorporates lead into it so as to provide shielding so it doesn't irradiate itself to death. The species has shifted towards typical budding, since they no longer stick to solid objects and the tiny clones can start swimming right away. When attacked by predators, the Swimming Radiocritter will expel a moderate dosage of radiation along with spite into the water around them, which can be dangerous for the predator and distract an attacker while they swim away.