Ulaillar eggs form alongside stars in the hearts of nebulae.
Ulaillars live exclusively inside nebulae, to date none have been found living anywhere else. A part of Storticai mythology is that a pair of giant Ulaillars helped shape the very stars themselves. However all Ulaillars encountered to date are much too small to have any effect on star formation. However they are drawn to star formation, as the process does something to the surrounding dust that Ulaillars need to survive. Clusters of Ulaillars can be found swimming through the interstellar medium around proto-stars.
Ulaillars are considered a delicacy by Omepails.