MCDB is pleased to welcome new Assistant Professor Tony DeTomaso from Stanford University's Hopkins Marine station. Dr. De Tomaso received his BS in Biological Sciences from Stanford University in 1987, and his Ph.D. from Washington University (St. Louis). Dr. De Tomaso went on to carry out innovative post-doctoral research with Dr. Irving Weissman at Stanford in a very different area: allorecognition in colonial tunicates. Dr. De Tomaso is currently an independent investigator in the Department of Biology at Stanford University. He heads a large, widely respected and highly productive laboratory at Hopkins that has gained international recognition for its ground-breaking work on the biology of the colonial ascidian Botryllus schlosseri . Dr. De Tomaso's work in Botryllus schlosseri is providing new insights into animal stem cell biology and tissue regeneration.