<I>Arabidopsis thaliana</I> (IMAGE) Max-Planck-Gesellschaft Caption This is a two-day-old thale cress embryo (Arabidopsis thaliana). Credit Steffen Lau/MPI for Developmental Biology Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.