From 2speccers2tools wiki

Due to their radioactive tendencies, the Radrake was able to mutate very rapidly into the Radon, looking possibly even worse than their ancestors, the Radon soar through the skies, using their radioactive organ both as a deadly laser or to create thermals (modes are switched by the flexing of muscles attached to mirror-like lenses on the inside of the organ), most of its lead exoskeleton has been internalized to allow it to fly more, they most commonly hunt out at sea but will fly into the sky ecosystem above as well, they only come back down to Dingus to rest, hanging from flora or rock formations like oversized bats.