A vocal pouch was part of the amphibious Drabatan species' anatomy. When necessary, Drabatans switched to a secondary language that was quieter and simpler than their primary language Drabatese,[1] passing air through their vocal pouches to emit croaks that they could vary in pitch.[2]
Behind the scenes
Vocal pouches were first mentioned in Pablo Hidalgo's reference book Star Wars: Rogue One: The Ultimate Visual Guide released in 2016.[2]
Sources
- Star Wars: Rogue One: The Ultimate Visual Guide (First mentioned)
- Dawn of Rebellion