August 1, 2009


Photograph by David Doubilet

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."


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