Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

Images Reveal Detail of Earliest Metazoans

Caption: Isosurface model of a 31-celled embryo, illustrating asynchronous cleavage within the first animals. Every fifth slice through the margins of each cell have been emphasized, and cell models have been rendered opaque and shaded different colors. This image relates to an article that appeared in the October 13, 2006, issue of the journal Science, published by AAAS. The study, by Dr. James W. Hagadorn of Amherst College and colleagues, was titled "Cellular and Subcellular Structure of Neoproterozoic Animal Embryos."

Credit: Photo provided by Sean Werle, UMass-Amherst, via Science-AAAS.

Usage Restrictions: Please cite the owner of the image when publishing. This image may be freely used by reporters as part of news coverage, with proper attribution. Non-reporters must contact Science for permission.