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A small giant clam -- yes, that's it's real name -- in Australia's Great Barrier Reef.
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Great Barrier Reef, Australia

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A Socotra cormorant dries its wings on the shore at the Socotra Archipelago in Yemen.
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Socotra Archipelago, Yemen

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A leatherback sea turtle crawls across the sand at the Area de Conservacion Guanacaste site in Costa Rica.
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Area de Conservación Guanacaste, Costa Rica

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Riftia tubeworm (Riftia pachyptila) colonies near hot spring.
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Tubeworms on a Hydrothermal Vent

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Caribbean reef sharks swim over a coral reef in the Bahamas.
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Caribbean Reef Shark

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Each year, thousands of local teachers join us for Smithsonian Teachers’ Night.
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Learning from a Sea of Teachers

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Lenticulina secans-- this “benthic” foram lives on the seafloor. This specimen was collected from southeastern Tanzania.
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Lenticulina secans

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'Blue Marble' satellite image of the Earth
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'Blue Marble' Image of the Earth

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A large group of dancers from the island of Tokelau dance during fiafia, evening entertainment)
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Water is Rising: Pacific Islands, Art, and Climate Change

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A photo of zebra mussels clinging together, the mollusks have successfully invaded brackish and freshwater areas across North America.
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Zebra Mussels (Dreissena polymorpha)

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A blue shark, with a copepod attached to its dorsal fin, coasts through waters near New England.
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Blue Shark

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