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A diver clears the bottom of a cargo ship of specimens.
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Collecting Invasive Species on a Boat Hull

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A "reef hotel" made of PVS layers on the seafloor.
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Placing ARMS in the Red Sea

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The Charles W. Morgan tallship
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Charles W. Morgan

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Madison Stewart, known to many simply as “shark girl,” is an inspiring young woman with a passion to protect the creatures most people fear: sharks. She’s been diving with sharks since the age of twelve. Here she is feeding a group of Caribbean reef
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Shark Girl With Caribbean Reef Sharks

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Grey reef sharks are among the most versatile and tough predators on a Pacific coral reef, but they are also among the most vulnerable species, as they are threatened by wasteful fishing practices like shark finning.
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Grey Reef Shark in the Line Islands

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A newly established black mangrove sits in a field of salt marsh near the northern limit of mangroves in Florida. Mangroves have been expanding near their northern limit in Florida and the expansion is linked to a reduction in the frequency of ex
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Mangroves Moving To Their Edge

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Photograph of a bright yellow fish.
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Tagged Atlantic Cod

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Illustration of colorful nudibranchs from Ernst Haeckel.
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Nudibranchs

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Vertebrates evolved in the sea and eventually moved onto land. The ancestors of whales later returned to the sea.
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Whales Returned to the Sea

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North Atlantic right whales migrate seasonally along the eastern coast of the United States.
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North Atlantic Right Whale Territory

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Jacqueline Peta of Sealaska’s board of directors participates in the tree-cutting ceremony.
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Cutting Down the Tree

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A right whale opens wide, revealing huge plates of baleen hanging from its upper jaw.
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Right Whale Baleen

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