Nudibranchs

These colorful mollusks are shell-less marine snails with exposed, feathery gills (nudibranch means "naked gill"). All are carnivores, preying upon a variety of other invertebrates such as sponges, corals, sea anemones and tunicates. Nudibranchs are hermaphroditic, each individual having functional male and female organs - and mating usually involves playing both roles simultaneously.

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