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Fish have certain adaptations, like blood with built-in antifreeze, to survive in the Antarctic.
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Fish Adapt to Icy Water

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An isopod stands on top of a glass sponge, extending its legs to find zooplankton.
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Isopod in a Glass Home

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Many Antarctic creatures, like the dinner-plate-sized sea spiders, have evolved to a gigantic size to cope with the extreme environment.
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Cold-Water Sea Spider

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Despite the cold and dark environment, soft-bodied animals like anemones abound under the ice in the Antarctic.
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Anemone in Cold Antarctic Water

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The dark sea floor of the Antarctic, beneath sea ice, is covered with life.
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Antarctic Ocean Floor

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Weddell seals grind their teeth on holes in the ice to keep them open to their comings and goings between ocean and air.
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Weddell Seal in Antarctic Water

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Snow petrels hunt in Antarctic sea ice, feeding on krill and fish.
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Snow Petrel

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Three distinct types of killer whale can be found in the Antarctic, each with a different habitat and diet preference.
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Orcas in the Antarctic

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The Antarctic minke whale is the only baleen whale found in the icy waters of the Antarctic.
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Antarctic Minke Whale

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Emperor penguins are the largest of the penguin species and can grow to be 100 pounds.
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Emperor Penguins on the Ice

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A small Adélie penguin hops on a piece of ice.
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Adélie Penguin Jumping Out of the Water

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Antarctica is almost entirely covered by ice sheets up to two miles (3 km) thick, which contain roughly 70% of the world’s freshwater.
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Ross Sea Ice Shelf

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