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Science 306 (5697): 796-797

Copyright © 2004 by the American Association for the Advancement of Science

DEVELOPMENTAL BIOLOGY:
Worm's Light-Sensing Proteins Suggest Eye's Single Origin

Elizabeth Pennisi

New data reported on page 869 showing unexpected similarities between photoreceptors of a marine worm and humans suggest that even the earliest animals had the makings of both vertebrate and invertebrate visual systems.



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Science Signaling. ISSN 1937-9145 (online), 1945-0877 (print). Pre-2008: Science's STKE. ISSN 1525-8882