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A tongue-like organ called the radula rams food down the giant squid's throat.
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Giant Squid Beak and Radula

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Rudist clams are mollusks that went extinct about 65 million years ago.
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Rudist Clams

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This brightly colored squat lobster collected in Moorea is a common find among the coral heads. Although called lobsters, this group of crustaceans is more closely related to hermit crabs than to true lobsters.
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Squat Lobster

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Researchers adopted the “yabbie pump,” the long silver tool shown here, from Australian fishing gear.
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Collecting Shallow-Water Specimens with the "Yabbie Pump"

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A hermit crab looks out from its coral dwelling in the waters of Japan's Ogasawara Islands.
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Coral Hermit Crab

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A photo of a solitary European green crab on a sandy substrate.
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European Green Crab (Carcinus maenas)

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A blue crab on the Mid-Atlantic coast of the U.S.
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Coastal Blue Crab

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Like other cephalopods, the common cuttlefish (Sepia officials Linnaeus, 1758) possesses serious brain power.
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Common cuttlefish

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A pink sea cucumber covered in small spike-like protrusions.
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Sea Cucumber: One Species at a Time

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Turbinolia stephensoni
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Smallest Coral Species

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Photograph of the underside of a gelatinous octopus with a bright yellow bioluminescent ring around her mouth.
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Bioluminescent Octopod

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A decomposing sea star loses its grip on a rock.
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A Starfish Wasting Away

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