Poles

The Arctic and Antarctic are found on opposite poles of Earth and, despite similarities, these regions are unique in their biology and history.

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The Arctic and The Antarctic

Travel to the ends of the earth—literally—and discover the polar ocean basins. Both the Arctic Ocean and the Southern Ocean...
A Greenland shark photographed in the St. Lawrence Estuary, near Baie-Comeau, Quebec

Greenland Shark: One Species at a Time

Scientists know the Greenland shark ( Somniosus microcephalus ) moves slowly in the Arctic's cold water. They also know that parasites attack the shark's eyes. But much about this animal remains a mystery. Marine...

The Arctic and The Antarctic

Travel to the ends of the earth—literally—and discover the polar ocean basins. Both the Arctic Ocean and the Southern Ocean are defined by ice and dramatic shifts between endless day and endless night. The...
A large red research vessel among icy waters and snowy mountains

Shipboard Life in the Antarctic

The R/V Laurence M. Gould amid icy waters in Antarctica Credit: Danielle Hall Strapped in to a harness on the back deck of a 230-foot research vessel off the coast of Antarctica , I...
Greenland Shark in cold water

In the Eyes of One Shark, Age is Nothing to Fear

Greenland Shark in icy Arctic waters. Credit: Julius Nielson In the freezing waters of the Arctic a toothed leviathan – the Greenland shark - claims an impressive feat. It now holds the record for...

Animals of the Ice

Watch animals of the ice run, swim, slide, waddle, and fly. Polar bears, penguins, seals, fish, krill and birds, all live on or under the ice. How they survive in the harsh extremes of...

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