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Sea Ice in its Ever-Changing Forms

For two months, Cassandra Brooks, a marine scientist with Stanford University,...

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National Ice Center Monitors the Arctic and Antarctic

The National Ice Center’s work is focused on ensuring safe and efficient...

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Weddell Seal in Antarctic Water

Weddell seals grind their teeth on holes in the ice to keep them open to their...

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Snow Petrel

The white body of the snow petrel blends in with the stark Antarctic landscape,...

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Antarctic Minke Whale

The elegant Antarctic minke whale feeds on krill (tiny crustaceans) during the...

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Emperor Penguins on the Ice

Standing at twice the height of the Adélie penguins, emperor penguins are the...

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Ross Sea Ice Shelf

Antarctica is almost entirely covered by ice sheets up to two miles (3 km) thick,...

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Antarctic Pack Ice

Every year as the sun disappears for the winter, the surface waters around...

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Blue-Green Antarctic Glacier

Looking through this iceberg's reflection in the Antarctic water, you can see the...

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Ice Melt in Iceland

On average, Arctic sea ice has decreased by four percent per decade since the late...

Personal Perspectives

Humpback Whales in Antarctica: What Are the Whales Doing?

Humpback whales (Megaptera novaengliae) are the most abundant baleen whale in the...

Article

Tagging and Tracking Animals Underwater

How do we know where ocean animals swim day and night? Scientists are getting...