The Tualapi were a species of bird in the mulefa world. They were the only known enemies of the mulefa, destroying their villages and causing the loss of many wheel-tree seed-pods. The mulefa had no defence against Tualapi; they had to retreat inland during attacks. Tualapi attacks generally resulted in total destruction of mulefa villages and could cost the mulefa greatly. The Tualapi also excreted dung onto the destroyed mulefa villages to make them more difficult to rebuild. Their dung was coloured green, black, brown and white.
- The Amber Spyglass, Chapter 10