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A marine biologist measures the temperature of an ice core.
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Measuring Ice Core Temperatures

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Two nurse sharks hover over a baited cage
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Expedition to the Poles

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Two nurse sharks hover over a baited cage
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Trophic relationships in Arctic marine ecosystems

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Human activity is increasing in the Arctic marine environment due to climate change. To help the most vulnerable areas, the Global Marine Program of IUCN, along with partners, is convening a series of workshops aimed at enhancing ecosystem-based management and identifying biologically or ecologically important or vulnerable habitats. Burgerbukta, a bay in Svalbard, Norway, is being managed for ecosystem protection.
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The Sant Ocean Hall: Life at the Poles Exhibit

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Two nurse sharks hover over a baited cage
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Just Jelly: ecological role of gelatinous zooplankton

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Divers deep into the cold waters beneath the ice.
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Diving Beneath the Ice

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A polar bear and its cub in Arctic National Wildlife Refuge, Alaska.
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Polar Bear Mother and Cub

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Polar bears have evolved to survive in the Arctic.
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Polar Bear on the Ice

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A narwhal breaches the surface, its tusk pointed to the sky
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Why a Tusk? The real-life unicorns of the sea and the tusks that make them famous

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data of sea ice coverage in the Arctic
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Arctic Sea Ice: A New Low?

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Greenland Shark in cold water
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In the Eyes of One Shark, Age is Nothing to Fear

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Polar bears are threatened by a lack of sea ice.
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Climate Change at the Poles

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