News Life's Patterns: No Need to Spell It Out? Adrian Cho + See all authors and affiliations Science 06 Feb 2004:Vol. 303, Issue 5659, pp. 782-783DOI: 10.1126/science.303.5659.782 Adrian ChoFind this author on Google Scholar Find this author on PubMed Search for this author on this site Article Figures & Data Info & Metrics eLetters PDF You are currently viewing the summary. View Full Text Via AAAS ID This article is available to AAAS members. If you are a AAAS Member use your via AAAS ID and password to log in. Not a member? Click here to join. Join/Subscribe Purchase Article Activate Member Account Renew Subscription Recommend a subscription to your library Help for librarians Order a single issue Free with registration Science research is available free with registration one year after initial publication. To get your free access please visit our registration form. Summary Rather than being specified by genes alone, elaborate biological structures may arise through simple dynamical mechanisms.