Dora-mu

The Dora-mu was a giant, marine creature from the Yuuzhan Vong's home galaxy. It was covered by hundreds of long, chitinous green scales which was able to withstand blaster shots and could heal over time.

Its scales were used by Shapers as the armor of an aquatic vehicle called the Vangaak. However, these scales did not die upon removal from the dora-mu since they could mold themself onto the Vangaak's skeleton and receive nutrition from the living craft.