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Adult male green sea turtle (Chelonia mydas) in the protected marine sanctuary at Honolua Bay on the northwest side of the island of Maui, Hawaii, USA

Adult green sea turtle (Chelonia mydas) in the protected marine sanctuary at Honolua Bay, Maui, Hawaii, USA

Excited whale watchers on shore see all three resident killer whale (Orcinus orca) pods off Lime Kiln lighthouse, San Juan Island, Washington State, USA

Adult emperor penguin (Aptenodytes forsteri) foot print on frsh snow near Snow Hill Island in the Weddell Sea, Antarctica.

Adult green sea turtle (Chelonia mydas) in the protected marine sanctuary at Honolua Bay, Maui, Hawaii, USA

Humpback whales (Megaptera novaeangliae) surfacing near Zodiac near the Antarctic Peninsula, Antarctica, Southern Ocean

Full moon (plus 1 day) in the Weddell Sea, Antarctica. MORE INFO This moonrise occurred on January 1, 2010, the night after the blue moon full of December 31, 2009.

Adult kelp gull (Larus dominicanus) foraging for small crustaceans in Ushuaia, Tierra del Fuego, Argentina, Southern Ocean

When the shed skin nears the tail, the newly formed chrysalis begins to shake very vigorously until the skin falls to the ground, then it settles down to form the butterfly within. The shape of the wings, anttenae and eyes can already be clearly seen. The process completes in seven to ten days. . Isle of White, UK. Isle of White, UK

When the shed skin nears the tail, the newly formed chrysalis begins to shake very vigorously until the skin falls to the ground, then it settles down to form the butterfly within. The shape of the wings, anttenae and eyes can already be clearly seen. The process completes in seven to ten days. . Isle of White, UK. Isle of White, UK

Adult painted lady butterfly shortly after emerging from chrysalis. The wings take over an hour to become strong enough to fly.. Isle of White, UK. Isle of White, UK

Painted lady caterpillar shortly before changing to chrysalis. It hangs itself upside down in this hooked position for around 24 hours. It continues to move throughout the 24 hours in gentle changes of position. . Isle of White, UK. Isle of White, UK

Photographers and adult leopard seal (Hydrurga leptonyx) hauled out on ice floe near the Antarctic Peninsula, Southern Ocean

Adult painted lady butterfly shortly after emerging from chrysalis. The wings take over an hour to become strong enough to fly.. Isle of White, UK. Isle of White, UK

As the time to change gets nearer, the caterpillar begins to move more and more, sometimes shaking vigorously. The skin begins to split and the caterpillar sheds its skin in a concertina motion. . Isle of White, UK. Isle of White, UK

Antarctic shag (Phalacrocorax (atriceps) bransfieldensis) resting on iceberg near Paulet Island, Weddell Sea, Antarctica

Adult emperor penguin (Aptenodytes forsteri) on sea ice near Snow Hill Island in the Weddell Sea, Antarctica.

Adult emperor penguin (Aptenodytes forsteri) near the Lindblad Expedition Ship National Geographic Explorer in Antarctica in the summer months.

The young caterpillars once hatched make silk compounds within which they start their growing process which takes about two weeks. The silk enclosure helps to protect them against potential predators. . Isle of White, UK. Isle of White, UK

A small pod of bottlenose dolphins (Tursiops truncatus) surfacing of the west coast of the Island of Maui, Hawaii, USA. Pacific Ocean.

Adult green sea turtle (Chelonia mydas) in the protected marine sanctuary at Honolua Bay, Maui, Hawaii, USA

Adult green sea turtle (Chelonia mydas) in the protected marine sanctuary at Honolua Bay, Maui, Hawaii, USA

Guests from the Lindblad Expedition ship National Geographic Explorer lay in the relatively warm waters of the caldera at Deception Island, South Shetland Islands, Antarctica

A small pod of bottlenose dolphins (Tursiops truncatus) surfacing of the west coast of the Island of Maui, Hawaii, USA. Pacific Ocean.

As the caterpillars grow, they leave their silk protection and continue feeding until they are large and mature enough to seek somewhere safe to change into chrysalis.. Isle of White, UK. Isle of White, UK

As the time to change gets nearer, the caterpillar begins to move more and more, sometimes shaking vigorously. The skin begins to split and the caterpillar sheds its skin in a concertina motion. . Isle of White, UK. Isle of White, UK

Hawaiian Spinner Dolphin pod (Stenella longirostris) underwater in Honolua Bay off the northwest coast of Maui, Hawaii, USA, Pacific Ocean

Blizzard conditions cause the ocean's surface to begin to freeze in Dahlmann Bay, Antarctica, Southern Ocean. MORE INFO First signs of grease ice as the surface of the sea begins to freeze.

As the time to change gets nearer, the caterpillar begins to move more and more, sometimes shaking vigorously. The skin begins to split and the caterpillar sheds its skin in a concertina motion. . Isle of White, UK. Isle of White, UK

Adult emperor penguin (Aptenodytes forsteri) with admirer on sea ice near Snow Hill Island in the Weddell Sea, Antarctica.

Commercial parasailing operations off the west side of the island of Maui, Hawaii, USA. MORE INFO Parasailing in Hawaii is limited seasonally to times of the year when humpback whales are not present.

Guests from the Lindblad Expedition ship National Geographic Explorer lay in the relatively warm waters of the caldera at Deception Island, South Shetland Islands, Antarctica

Hawaiian Spinner Dolphin pod (Stenella longirostris) underwater in Honolua Bay off the northwest coast of Maui, Hawaii, USA, Pacific Ocean

Snorkeler with green sea turtle (Chelonia mydas) at cleaning station at Olowalu Reef on the west side of the island of Maui, Hawaii, USA

Snow-covered whale bones on Jougla Point, in Port Lockroy at the western end of Wiencke Island, Antarctica, Southern Ocean

Lindblad Expedition guests enjoying the snow-covered hills of Neko Harbour on the Antarctic Peninsula on Andvord Bay, Antarctica, Southern Ocean

Adult green sea turtle (Chelonia mydas) in the protected marine sanctuary at Honolua Bay, Maui, Hawaii, USA

Adult green sea turtle (Chelonia mydas) in the protected marine sanctuary at Honolua Bay, Maui, Hawaii, USA

Soft Coral Dendronephthya sp close up and Ghost Goby Pleurosicya micheli. Gili Islands, Lombok, Indonesia

Excited whale watchers on shore see all three resident killer whale (Orcinus orca) pods off Lime Kiln lighthouse, San Juan Island, Washington State, USA