News of the WeekDevelopmental Biology

Worm's Light-Sensing Proteins Suggest Eye's Single Origin

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Science  29 Oct 2004:
Vol. 306, Issue 5697, pp. 796-797
DOI: 10.1126/science.306.5697.796a

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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.