Chinstrap penguins on a striated iceberg, South Shetland Islands, Antarctica.

Female southern elephant seals, South Shetland Islands, Antarctica.

An Adelie penguin feeding its chick.

A pair of macaroni penguins, South Shetland Islands, Antarctica.

Antarctic shags, South Shetland Islands.

A Weddell seal .

A group of crabeater seals on an ice floe.

Leopard seal.

Antarctic krill, Euphausia superba.

An echogram, or sound diagram, of a krill swarm.

Krill catch aboard a commerical trawler.

AMLR scientist Tom Near measures fish samples caught aboard the R/V Yuzhmorgeologiya.

AMLR scientist Kristen Green sorts krill samples aboard the R/V Yuzhmorgeologiya.

AMLR scientist Jessica Lipsky tests oxygen content of water samples.

The aft deck of the R/V Yuzhmorgeologiya during a safety drill .

Stitched photo taken by Dr. Mike Goebel from the hill behind Cape Shirreff field camp.

Stitched photo taken by Dr. Mike Goebel from the hill behind Cape Shirreff field camp.

All three study species of penguins at the Copacabana field station on King George Island.

All three study species of penguins at the Copacabana field station on King George Island.

Adelie penguins incubating eggs.

Adelie penguins nest relief.

Adelie penguins nest relief.

Adelie penguins with their new egg.

Gentoo penguins incubating eggs.

Gentoo penguins incubating eggs.

Gentoo penguins incubating eggs.

Gentoo penguins incubating eggs.

Gentoo penguin building pebble nest.

Gentoo penguin building pebble nest.

Gentoo penguin stealing pebbles from another penguin nest.

Gentoo penguin building pebble nests.

Gentoo penguin stealing pebbles from another penguin nest.

Gentoo penguin stealing pebbles from another penguin nest.

Gentoo penguin stealing pebbles from another penguin nest.

Gentoo penguin stealing pebbles from another penguin nest.

Gentoo penguin stealing pebbles from another penguin nest.

Gentoo penguin stealing pebbles from another penguin nest.

Gentoo penguin stealing pebbles from another penguin nest.

Drying salmon on the Yukon River with a rainbow on the far bank of the river.

Clam dredger EMPTY POCKETS seen operating in Passamaquoddy Bay area

Clam dredger EMPTY POCKETS seen operating in Passamaquoddy Bay area

Clam dredger EMPTY POCKETS seen operating in Passamaquoddy Bay area

Velvet whalefish (Barbourisia roufa)

Velvet whalefish (Barbourisia roufa)

Velvet whalefish (Barbourisia roufa)

Velvet whalefish (Barbourisia roufa)

Velvet whalefish (Barbourisia roufa)

Velvet whalefish (Barbourisia roufa)

Velvet whalefish (Barbourisia roufa)

Velvet whalefish (Barbourisia roufa)