A colony of gentoo penguins on King George Island.

Steve Sessions walking to Copacabana field camp as a Zodiac heads back to the R/V Yuzhmorgeologiya.

A Gentoo penguin being chased by chicks for food.

A Zodiac inflatable boat is lowered over the side of the R/V Yuzhmorgeologiya to carry scientists and supplies to the Copacabana field station.

A female Antarctic fur seal sunning.

A chinstrap adult keeping an unknown chick away from its own.

A chinstrap penguin colony in the distance, Livingston Island.

Female Antarctic fur seal scratching.

Researchers on a zodiac using multibeam acoustics for krill school measurements.

Antarctic fur seal grooming at Cape Shirreff.

Ice that has been shaped by lapping waves .

Close up of an Antarctic fur seal's whiskers.

Female Elephant seal resting at the edge of the shore.

A crabeater seal baring its impressive teeth.

A close-up of this Antarctic shag highlights its characteristic blue and the yellow/orange growth above its beak that is brightest during the breeding season, presumably to attract mates.

Antarctic fur seal pup playing in the water.

An Adelie penguin warms its chick.

Ice melting at the foot of a glacier, Admiralty Bay, King George Island.

Ezcurra Inlet, King George Island at sunrise.

Sunrise over Admiralty Bay, King George Island.

A field camp on Admiralty Bay, King George Island.

Ice melting on the shore of Admiralty Bay.

Sunset at Admiralty Bay, King George Island.

An Antarctic sea urchin, Brachysternaster chesheri.

AMLR scientists deploy a Smith-McIntyre grab, or "mud grabber", used for taking benthic samples, during a snow storm at night.

An Antarctic sea urchin (Notocidaris sp.).

An Antarctic sea star, Pergamaster sp.

Antarctic ice fish on a sorting table.

A composite photo of Antarctic sea urchins, Rhynchocidaris sp.

Lenticular clouds over Livingston Island, South Shetland Islands.

Chinstrap penguin chick.

Rocky coastline at Seal Island, South Shetland Islands.

An AMLR penguin researcher with a penguin chick, Seal Island, South Shetland Islands.

An adult chinstrap penguins with chicks, Seal Island, South Shetland Islands.

An icy Antarctic seascape.

Penguin colony on Seal Island, Antarctica.

Antarctic fur seal.

Preening chinstrap penguin.

Resting chinstrap penguin.

Preening chinstrap penguin.

Chinstrap penguin colony, Seal Island, Antarctica.

Chinstrap penguin and southern giant petrels.

An adult chinstrap penguin feeding its chick.

Molting chinstrap penguin chicks, Seal Island, Antarctica.

Copulating chinstrap penguins, Seal Island, Antarctica.

Chinstrap penguin nest in the snow.

Chinstrap penguin with egg.

Chinstrap penguin colony, Seal Island, Antarctica.

Chinstrap penguin colony, Seal Island, Antarctica.

Melanistic chinstrap penguin.