Photo of the Day
Each day, we highlight one extraordinary photograph from National Geographic. Check out more of our photos here.
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August 1, 2009 | Nudibranch
This Month in Photo of the Day: Animals
Members of the gastropod class, finger-size nudibranchs live fully exposed, their gills forming tufts on their backs. (Nudibranch means "naked gill," a feature that separates them from other sea slugs.).
See more photographs from the June 2008 feature story "Living Color."
