The vaso spend most of their time sitting on the forest floor gathering rainwater in their heads. The water stays there for a little while, they urinate and the process starts again. Not a particularly exciting lifestyle but they do play a crucial part in the ecology of the forests on Ohk. If a drought is about to happen the vaso will sense it's coming and hang on to the water until the trees really need it, then they let it go. Knowing when to pee is a skill we should all acquire!
