Development is a journal that provides an insight into mechanisms of plant and animal development, covering all aspects from molecular and cellular to tissue levels. It aims to act as a forum for all research that offers a genuine insight into developmental mechanisms. Studies on both plant and animal development are welcome and can be focused upon any aspect of the developmental process, at all levels of biological organization from the molecular and cellular to the tissue levels. Experimental papers will be given the highest priority. Manuscripts that are entirely descriptive will only be accepted if they are of particularly high quality and offer novel insight into developmental mechanisms. Development is published twice monthly (24 issues/year).