Adelie penguins leaping into the ocean from an iceberg, Pygoscelis adeliae, Brown Bluff

Group of Adelie penguins leaping into the ocean from an iceberg, Brown Bluff, Antarctic Peninsula. Pygoscelis adeliae.

Two Adelie penguins, holding their wings out, standing on an iceberg, Pygoscelis adeliae, Paulet Island

Adelie penguins, Pygoscelis adeliae, on iceberg near Paulet Island, Antarctica.

Humpback whale in Antarctica.  A humpback whale swims through the beautiful ice-filled waters of Neko Harbor, Antarctic Peninsula, Antarctica, Megaptera novaeangliae

Humpback Whale In Antarctica, Neko Harbor

Blue whale skeleton in Antarctica, on the shore at Port Lockroy, Antarctica.  This skeleton is composed primarily of blue whale bones, but there are believed to be bones of other baleen whales included in the skeleton as well, Balaenoptera musculus

Blue whale skeleton in Antarctica, on the shore at Port Lockroy, Antarctic Peninsula, Antarctica.

Adelie penguin on an iceberg, Pygoscelis adeliae, Brown Bluff

Adelie penguin on an iceberg, Pygoscelis adeliae, Antarctica.

Southern humpback whale in Antarctica, with significant diatomaceous growth (brown) on the underside of its fluke, lifting its fluke before diving in Neko Harbor, Antarctica, Megaptera novaeangliae

Southern Humpback Whale In Antarctica, Neko Harbor

Humpback whale lunge feeding on Antarctic krill, with mouth open and baleen visible.  The humbpack's pink throat grooves are seen as its pleated throat becomes fully distended as the whale fills its mouth with krill and water.  The water will be pushed out, while the baleen strains and retains the small krill, Megaptera novaeangliae, Gerlache Strait

Humpback whale lunge feeding on Antarctic krill, Antarctic Peninsula.

Blue whale skeleton in Antarctica, on the shore at Port Lockroy, Antarctica.  This skeleton is composed primarily of blue whale bones, but there are believed to be bones of other baleen whales included in the skeleton as well, Balaenoptera musculus

Blue Whale Skeleton In Antarctica, Port Lockroy

Pack ice, a combination of sea ice and pieces of icebergs, Weddell Sea

Pack Ice, Weddell Sea

Chinstrap penguins at Bailey Head, Deception Island.  Chinstrap penguins enter and exit the surf on the black sand beach at Bailey Head on Deception Island.  Bailey Head is home to one of the largest colonies of chinstrap penguins in the world, Pygoscelis antarcticus

Chinstrap Penguins At Bailey Head, Deception Island

Humpback whale in Antarctica.  A humpback whale swims through the beautiful ice-filled waters of Neko Harbor, Antarctic Peninsula, Antarctica, Megaptera novaeangliae

Humpback Whale In Antarctica, Neko Harbor

Tabular iceberg, Antarctic Peninsula, near Paulet Island, sunset

Incredible tabular iceberg, Paulet Island, Antarctica.

Pack ice and brash ice fills the Weddell Sea, near the Antarctic Peninsula.  This pack ice is a combination of broken pieces of icebergs, sea ice that has formed on the ocean

Pack ice and brash ice fills the Weddell Sea, near the Antarctic Peninsula.

Adelie penguins at the nest, part of the large nesting colony of penguins that resides along the lower slopes of Devil Island, Pygoscelis adeliae

Adelie penguins at the nest, a colony on the slopes of Devil Island, Antarctica. Pygoscelis adeliae.

Tabular iceberg in the Antarctic Sound

Antarctic Sound

Tabular iceberg in the Antarctic Sound

Tabular iceberg in the Antarctic Sound.

Adelie penguins walking on a stone beach, Pygoscelis adeliae, Brown Bluff

Adelie penguins walking on a stone beach, Pygoscelis adeliae, Brown Bluff, Antarctic Peninsula.

A group of Adelie penguins, on packed snow, Pygoscelis adeliae, Paulet Island

A group of Adelie penguins (Pygoscelis adeliae), Paulet Island, Antarctica

Weddell seal in Antarctica.  The Weddell seal reaches sizes of 3m and 600 kg, and feeds on a variety of fish, krill, squid, cephalopods, crustaceans and penguins, Leptonychotes weddellii, Cierva Cove

Weddell Seal In Antarctica, Cierva Cove

A leopard seal in Antarctica.  The leopard seal is a large predatory seal, up to 1300 lb and 11 ft in length, feeding on krill, squid, fish, various penguin species and other seabirds and occasionally, other pinnipeds, Hydrurga leptonyx, Cierva Cove

A Leopard Seal In Antarctica, Cierva Cove

Brash ice floats on cold, dark Antarctic waters, Cierva Cove

Brash Ice Floats On Cold, Cierva Cove

Lemaire Channel: mountains, sea, ice and clouds,Antarctica.  The Lemaire Channel, one of the most scenic places on the Antarctic Peninsula, is a straight 11 km long and only 1.6 km wide at its narrowest point

Lemaire Channel: Mountains

Horizontal striations and layers in packed snow, melting and overhanging, seen from the edge of the snowpack, along a rocky beach, Brown Bluff

Horizontal striations and layers in packed snow on the edge of the ocean, Brown Bluff, Antarctica

Iceberg, clouds and sky, Antarctica, Antarctic Sound

Antarctic Sound

Adelie penguins navigate a steep dropoff, to get from their nests down to a rocky beach, in order to go to sea to forage for food, Pygoscelis adeliae, Paulet Island

Adelie penguins, Paulet Island, Antarctic Peninsula. Pygoscelis adeliae.

Gentoo penguin tending to its two chicks.  The nest is made of small stones, Pygoscelis papua, Cuverville Island

Gentoo Penguin Tending To Its Two Chicks, Cuverville Island

Waves rush in, sunset, Antarctica.  Ocean water rushes ashore over the rocky edge of Peterman Island, Antarctica

Waves rush in, Peterman Island, Antarctica

A glacier fractures and cracks, as the leading of a glacier fractures and cracks as it reaches the ocean.  The pieces will float away to become icebergs, Neko Harbor

A Glacier Fractures And Cracks, Neko Harbor

Weddell seal in Antarctica.  The Weddell seal reaches sizes of 3m and 600 kg, and feeds on a variety of fish, krill, squid, cephalopods, crustaceans and penguins, Leptonychotes weddellii, Neko Harbor

Weddell Seal In Antarctica, Neko Harbor

A crabeater seal, hauled out on pack ice to rest.  Crabeater seals reach 2m and 200kg in size, with females being slightly larger than males.  Crabeaters are the most abundant species of seal in the world, with as many as 75 million individuals.  Despite its name, 80% the crabeater seal's diet consists of Antarctic krill.  They have specially adapted teeth to strain the small krill from the water, Lobodon carcinophagus, Neko Harbor

A Crabeater Seal, Neko Harbor

A crabeater seal, hauled out on pack ice to rest.  Crabeater seals reach 2m and 200kg in size, with females being slightly larger than males.  Crabeaters are the most abundant species of seal in the world, with as many as 75 million individuals.  Despite its name, 80% the crabeater seal's diet consists of Antarctic krill.  They have specially adapted teeth to strain the small krill from the water, Lobodon carcinophagus, Neko Harbor

A Crabeater Seal, Neko Harbor

A glacier fractures and cracks, as the leading of a glacier fractures and cracks as it reaches the ocean.  The pieces will float away to become icebergs, Neko Harbor

A Glacier Fractures And Cracks, Neko Harbor

The edge of the fast ice along the shore, near Paulet Island

Paulet Island

Iceberg with scalloped erosion.  The eroded indentations on this iceberg were melted when this portion of the iceberg was underwater.  As it melted, the iceberg grew topheavy, eventually flipping and exposing this interesting surface, Paulet Island

Paulet Island

Crested snow patterns along the slopes of Devil Island

Devil Island

A group of Adelie penguins, on packed snow, Pygoscelis adeliae, Paulet Island

Adelie Penguin, Paulet Island

Antarctic icebergs, sculpted by ocean tides into fantastic shapes, Cierva Cove

Antarctic Icebergs, Cierva Cove

Icicles and melting ice, hanging from the edge of an blue iceberg.  Is this the result of climate change and global warming?, Brown Bluff

Icicles and melting ice, hanging from the edge of an blue iceberg.

Small ice floe with penguins, with a large tabular iceberg in the distance, Antarctic Sound

Small ice floe with penguins, with a large tabular iceberg in the distance, Antarctic Sound.

Iceberg with scalloped erosion.  The eroded indentations on this iceberg were melted when this portion of the iceberg was underwater.  As it melted, the iceberg grew topheavy, eventually flipping and exposing this interesting surface, Paulet Island

Iceberg with scalloped erosion.

Blue iceberg detail, Paulet Island

Blue iceberg detail.

Sunrise in the South Shetland Islands, near Deception Island

Sunrise In The South Shetland Islands, Deception Island

Distant icebergs, mountains, clouds, ocean at dawn, in the South Shetland Islands, near Deception Island

Distant Icebergs, Deception Island

Zodiac cruising in Antarctica.  Tourists enjoy the pack ice and towering glaciers of Cierva Cove on the Antarctic Peninsula

Zodiac cruising in Antarctica

Icebreaker M/V Polar Star, anchored near Peterman Island, Antarctica

Icebreaker M/V Polar Star, Peterman Island

Lemaire Channel: mountains, sea, ice and clouds, Antarctica.  The Lemaire Channel, one of the most scenic places on the Antarctic Peninsula, is a straight 11 km long and only 1.6 km wide at its narrowest point

Lemaire Channel: mountains, sea, ice and clouds, Antarctic Peninsula

Southern elephant seal, Mirounga leonina, Livingston Island

Southern Elephant Seal, Livingston Island

M/V Polar Star on its way to Brown Bluff in the Antarctic Sound

M/V Polar Star on its way to Brown Bluff in the Antarctic Sound.

Ice, ocean, clouds and sun, Antarctica, Antarctic Sound

Antarctic Sound

Icebreaker M/V Polar Star near Devil Island, sunrise

Icebreaker M/V Polar Star near Devil Island, sunrise.

Landing ashore at Paulet Island, in an inflatable, at sunset

Paulet Island

Visitors enjoy an inflatable ride through the strange environs of a bizarrely-shaped iceberg, on a cloudy day, Brown Bluff

Visitors enjoy an inflatable ride through the strange environs of a bizarrely-shaped iceberg, on a cloudy day.

Southern humpback whale in Antarctica, with significant diatomaceous growth (brown) on the underside of its fluke, lifting its fluke before diving in Cierva Cove, Antarctica, Megaptera novaeangliae

Southern Humpback Whale In Antarctica, Cierva Cove

Gentoo penguin portrait, Pygoscelis papua, Cuverville Island

Gentoo Penguin Portrait, Cuverville Island

Scenery in Antarctica.  Clouds, ocean and glaciers, near Port Lockroy

Scenery In Antarctica, Port Lockroy

Sun peeks through a hole in ice along the shore of Paulet Island

Sun peeks through a hole in ice along the shore of Paulet Island.

Melting ice along the shore of Paulet Island

Paulet Island

Chinstrap penguins at Bailey Head, Deception Island.  Chinstrap penguins enter and exit the surf on the black sand beach at Bailey Head on Deception Island.  Bailey Head is home to one of the largest colonies of chinstrap penguins in the world, Pygoscelis antarcticus

Chinstrap Penguins At Bailey Head, Deception Island

Humpback whale lunge feeding on Antarctic krill, with mouth open and baleen visible.  The humbpack's pink throat grooves are seen as its pleated throat becomes fully distended as the whale fills its mouth with krill and water.  The water will be pushed out, while the baleen strains and retains the small krill, Megaptera novaeangliae, Gerlache Strait

Humpback Whale Lunge Feeding On Antarctic Krill, Gerlache Strait

Southern elephant seal watches gentoo penguin, Mirounga leonina, Pygoscelis papua, Livingston Island

Southern Elephant Seal Watches Gentoo Penguin, Livingston Island

Iceberg detail.  Cracks and melt patterns.  Blue ice, Brown Bluff

Iceberg detail. Cracks and melt patterns. Blue ice.

Southern elephant seal, hind flipper detail, Mirounga leonina, Livingston Island

Southern Elephant Seal, Livingston Island

Southern elephant seal, Mirounga leonina, Livingston Island

Southern Elephant Seal, Livingston Island