Kyren were relatively small but lethal flying creatures native to the planet Ansion. Almost jet black with four membranous wings, two large at the front of the thorax and two smaller ones at the rear, the kyren would glide on the upper wings while being propelled by the rear ones. A bright yellow splotch decorated each wing, possibly as an aid for identification. The kyren were legless, and instead boasted a pair of thick, furry tufts that ran the length of its underside, like runners on a sled. Since they were airborne for most of their lives, the kyren had little need for legs.