Being extremely unstable, such lifeforms require some sort of conduit to maintain molecular cohesion and a corporeal host with compatible biochemistry in order to take physical form. They can also travel along a standard power transfer beam, and leave traces of anaphasic radiation in their wake. When bonded to a Human, the host's appearance may change, such as a change in the eye color. Ronin was an anaphasic lifeform. (TNG: "Sub Rosa" )