The origin of blood and vascular endothelium in embryos without a circulation of the blood and in the normal embryo

DEVELOPMENTAL DYNAMICS provides a focus for communication among developmental biologists who study the progressive and dynamic emergence of form and function during embryonic development. The journal is an international forum for the exchange of novel and substantive information on mechanisms that control development. We seek manuscripts presenting work done at all levels of biological organization, ranging from the molecular to the organismal, using both animal and plant model systems, and we welcome studies that advance our understanding of the developmental basis of human disease.