Dwarven beards are rich habitats for the enterprising critter.
Patron deity of the Cult of Done, Othamm is always working to counter Mathom's influence.
When Vegma, Judge of the Dead, was called away to witness Mathom's trial, he left Slys in charge of the recently deceased. Intended as a simple placeholder, she has come to be something more.
The desert is a curse from the Water God upon the wicked people who live in the South.
Said people offended the Water God in some way, and so the Water God placed water-trappers, bizarre, water-sucking beings, in the soil, and within years, the wilderness became a desert.
Thus, the desert folk shamans have special powers that allow them to find water-trappers so that they can be dug up and their water harvested.