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Contact: Andy Fell
ahfell@ucdavis.edu
530-752-4533
University of California - Davis
Caption: On the left is a hydra stained in blue where the light-sensitive opsin gene is expressed. On the right, two tentacle bulbs showing the arrangement of neurons and stinging cells (red), muscle fibers (green) and cell nuclei (blue).
Credit: David Plachetzki, UC Davis
Usage Restrictions: May be used with credit.
Related news release: Stinging came before seeing
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