Contents

07 June 2013
Vol 340, Issue 6137

About The Cover

Cover image expansion

COVER Intestinal organoids (red) derived in vitro from single intestinal stem cells display cryptlike structures with stem and Paneth cells (stem cells, green). Infused mini-guts fill in the ulcerated area of an inflamed colon. Reviews in this special issue on morphogenesis describe recent mini-gut technology, as well as advances in light dynamics during development. See the special section on page 1183 and at www.sciencemag.org/special/morph. Image: Hans Clevers, Hubrecht Institute