However, those green scales did not die upon removal from the dora-mu, because it could mold itself onto the Vangaak's skeleton and receive nutrition from the living craft. These scales were also able to withstand blaster bolts, and were capable of healing. Also, knobby projections that can control the craft sprout from the carapace. Vangaak trawlers were used to gather fish and other aquatic life. It traveled largely submerged with only a broad flat dome that served as a sensory device visible.