Waterfall at Potter glacier, Tierra del Fuego, Chile, South America

Adult humpback whale (Megaptera novaeangliae) breaching along the west side of Chatham Strait in Alaska, United States of America

Starling murmuration at sunset next to the Brighton Palace Pier, City of Brighton and Hove, East Sussex, England, United Kingdom

Starling murmuration at sunset next to the Brighton Palace Pier, City of Brighton and Hove, East Sussex, England, United Kingdom

Starling murmuration at sunset with remains of the West Pier in the background, City of Brighton and Hove, East Sussex, England, United Kingdom

Starling murmuration at sunset next to the Brighton Palace Pier, City of Brighton and Hove, East Sussex, England, United Kingdom

Starling murmuration at sunset next to the Brighton Palace Pier, City of Brighton and Hove, East Sussex, England, United Kingdom

Starling murmuration at sunset, as seen from the Brighton Beach, City of Brighton and Hove, East Sussex, England, United Kingdom

Interesting lenticular cloud formations forming over the island of South Georgia in the Southern Ocean

Interesting lenticular cloud formations forming over the island of South Georgia in the Southern Ocean

Adult brown bears (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult Dall's porpoise (Phocoenoides dalli) surfacing with characteristic rooster tail splash in Johnstone Strait, British Columbia, Canada, North America

Southern giant petrel (Macronectes giganteus), feeding on a sheep carcass at West Point Island, Falkland Islands, South America

A murmuration of starlings, numbering well over a million birds, flock together to roost at dusk on the Avalon Marshes at Shapwick Heath Nature Reserve in Somerset

A murmuration of starlings, numbering well over a million birds, form the shape of an atomic bomb mushroom cloud as they come in to roost at dusk on the Avalon Marshes at Shapwick Heath Nature Reserve in Somerset

Starlings, a murmuration of a million birds, in mushroom cloud shape as they drop to roost on Avalon Marshes, UK

Starlings, a murmuration of a million birds, in mushroom cloud shape as they drop to roost on Avalon Marshes, UK

Starlings, a murmuration of a million birds gather to roost above Avalon Marshes in Somerset, UK

A murmuration of starlings, numbering well over a million birds, gather as a flock to roost at dusk on the Avalon Marshes at Shapwick Heath Nature Reserve in Somerset

Starlings, a murmuration of a million birds gather to roost above Avalon Marshes in Somerset, UK

Starlings, a murmuration of a million birds gather to roost on Avalon Marshes at Shapwick Heath Nature Reserve, UK

Large bull Southern Elephant Seal; Mirounga leonina, fighting at Gold Harbour, South Georgia, Antarctica, in a King Penguin colony.

A Chinstrap Penguin, Pygoscelis antarctica, at Hannah Point on Livingston Island in the South Shetland Islands, Antarctic. Behind the penguin is lots of greenery, plants that are expanding as the Antarctic Peninsular warms as a result of climate change,

Adelie Penguins, Pygoscelis adeliae at Madder Cliffs, Suspiros Bay, with tourists from an expedition cruise, at the west end of Joinville Island, Antarctica.

King Penguins on Salisbury Plain, South Georgia, with passengers from an expedition cruise.

A Gentoo Penguin on Prion Island, South Georgia.

King Penguins at Gold Harbour, South Georgia, with passengers from an expedition cruise.

King Penguins at Gold Harbour, South Georgia, with passengers from an expedition cruise.

Closeup of large whale jumping head-on out of blue water