Cover legend: Confocal image (63×) of an apical view of sensory epithelium excised from the mouse utricle, a vestibular organ, at embryonic day 18. The tissue was stained with phalloidin (red) to illuminate the actin-rich hair bundles and the actin belt that rings the apical surface of each cell. Antitubulin (green) labels the kinocilium. For more information, see the article by Holt et al. in the August 15, 2007 issue (pages 8940–8951).