These creatures are gregarious and take care of their young. They are commonly found in asteroid fields and are able to change colors quickly like a cuttlefish, presumably for communication purposes. They also radiate radio waves and other kinds of radiation, probably for long-distance communication in space. Their propulsion system is unknown, but they move through space vacuum smoothly and might be able to achieve warp speed. Their sapience level is unknown. Appearances: Star Trek: The Next Generation - "Galaxy's Child"