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This rare staurozoan, or stalked jellyfish, Haliclystus californiensis, is about 2 centimeters in length and was collected off the coast of California.
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Staurozoan: The Stalked Jellyfish

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Flame shells live in enormous colonies, but hidden in nests.
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Orange-Tentacled Flame Shell

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How Many Nights of Hanukkah? A harp has its own place in holiday music, but we also think this sponge looks like a super-sized menorah! This newly-discovered carnivorous sponge (Chondrocladia lyra) was found using robotic submersibles operated by the
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Harp Sponge

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A small, transparent, shell-less sea snail in the open ocean.
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A Chorus of Sea Angels

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The white, black and yellow patterns of this eel look like snowflakes.
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Snowflake Moray Eel

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A big-bellied seahorse
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A Foot-Long Seahorse

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This common octopus (Octopus vulgaris) shows off its siphon, which it uses to propel itself through the water.
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Octopus Shows Off Its Funnel

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But closer to the CO2 seeps, the complex reef has been replaced by a “monoculture” of boulder corals.
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Monoculture of Boulder Corals

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Acidic waters are also able to completely dissolve coral skeletons.
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Dissolving Coral Skeleton in Acidic Waters

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The acidic waters from the CO2 seeps can dissolve shells and also make it harder for shells to grow in the first place.
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Dissolving Shell

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Narwhals with their long unicorn-like tusks.
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Narwhals Breaching

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A purple jellyfish
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Stinging Beauty

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