Philip Stephen / Fishing vessel 'Harvester' winching her catch onboard amid a group of hungry seabirds. North Sea, Europe, December 2011. Property released.

Chris Gomersall / 2020VISION / Passengers on observation deck of Sea Life Surveys vessel Sula Beag watching a Bottlenose dolphin (Tursiops truncatus) bow riding in the Sound of Mull, Inner Hebrides, Scotland, UK, July 2011. 2020VIS...

Juergen Freund / Dock worker carrying tuna from a fishing vessel to the fish landing and processing area, Sarangani, Philippines, April 2010.

Philip Stephen / Fishing vessel "Harvester" powering through huge waves while operating in the North Sea. Europe, January 2009. Property released.

Philip Stephen / Fishing vessel "Ocean Pioneer" nearing Fraserburgh Harbour, with waves crashing against the harbour wall. Scotland, February 2011.

Philip Stephen / Fishing vessel "Harvester" surrounded by Northern gannets (Morus bassanus) whilst hauling the trawl net onboard. North Sea, Europe, February 2011. Property released.

Winfried Wisniewski / African Elephant (Loxodonta africana) and tourist boat, Chobe River, Chobe National Park, Botswana

Philip Stephen / Fishing vessel "Harvester" heading to North Sea fishing grounds in stormy weather. Europe, November 2010. Property released.

Philip Stephen / Huge wave enveloping fishing vessel "Harvester" while operating in the North Sea. Europe, November 2010. Property released.

Philip Stephen / Fishing vessel "Harvester" on a stormy North Sea. Europe, November 2010. Property released.

Philip Stephen / Fishing vessel "Ocean Harvest" in huge waves on the North Sea, September 2010. Property released.

Philip Stephen / Fishing vessel "Harvester" and the "Jotun B" oil production platform. North Sea, May 2010.

Philip Stephen / Fishing vessel "Harvester" and the "Jotun B" oil production platform. North Sea, May 2010.

Philip Stephen / Fishing vessel "Ocean Harvest" on the North Sea, May 2010. Property released.

Philip Stephen / Fishing vessel "Ocean Harvest" on the North Sea, May 2010. Property released.

Philip Stephen / Fishing vessel "Harvester" hauling fishing gear in the dark, May 2010. Property released.

Philip Stephen / Fishing vessel "Harvester" taking a good haul of Saithe (Pollachius virens) aboard, at night on the North Sea, 60 miles North East of the Shetlands. February 2010, Property released.

Philip Stephen / Fishing vessel "Ocean Harvest" operating close to the "Beryl Alpha" production platform, 160 miles Northeast of Aberdeen, in the North Sea. March 2010.

Philip Stephen / Gull flying over fishing vessel "Harvester" in heavy seas, North Sea, February 2010. Property released.

Philip Stephen / Fishing vessel "Harvester" trawling at twilight on the North Sea. February 2010, Property released.

Richard Herrmann / Research submersible submerging to explore hot vents, Danzante Island, Baja California, Mexico

Flip Nicklin / Blue Whale (Balaenoptera musculus) fatally injured in collision with ship and subsequently found by research vessel, Santa Barbara Channel, California

Juergen Freund / Scientists on the Undersea Explorer research vessel testing a coconut rattle to attract sharks. Queensland, Australia. John Rumney.

Juergen Freund / Large 2-cone plankton net behind research vessel (researchers from Central Queensland University, Rockhampton). Queensland, Australia

Pete Oxford / Dugout canoe in blackwater stream, Yasuni National Park Biosphere Reserve, Amazon rainforest, Ecuador

Mark Moffett / Meg Lowman strides across a canopy raft to collect insect samples with her net as Bruce Rinker inspects the previous catch, Cameroon

Tui De Roy / Glacier with tourist expedition in inflatable zodiac, southern Greenland Fjords, Greenland

Yva Momatiuk & John Eastcott / Red rubber boat with two expedition members circle floating iceberg, summer season, Labrador Sea, Labrador, Canada

Gerry Ellis / Hurricane Bay, Virgin Islands National Park, Saint John Island, Virgin Islands, Caribbean

Colin Monteath / Humpback Whale (Megaptera novaeangliae) observed by tourists in a zodiac boat near Melchoir Island, Antarctic Peninsula, Antarctica

Konrad Wothe / Tourists on Russian icebreaker breaking through pack ice, Antarctica

Norbert Wu / The Blue Hole, largest underwater sinkhole and popular diving site, Lighthouse Reef, Belize

Norbert Wu / West Indian Manatee (Trichechus manatus), Crystal River, Florida

Jim Brandenburg / Canoe bow with autumn trees, Discovery Lake, Superior National Forest, Minnesota

Flip Nicklin / Humpback Whale (Megaptera novaeangliae) friendly singer approaches research boat, joiner in background, Maui, Hawaii - notice must accompany publication; photo obtained under NMFS permit 987

Flip Nicklin / Orca (Orcinus orca) leaping, watched by tourists from Stubbs Island charter boat, Johnstone Strait, northeast Vancouver Island, Canada

Flip Nicklin / Humpback Whale (Megaptera novaeangliae) tails and sailboat with whale watching tour, Hawaii

Mitsuaki Iwago / Cruise ship in storm, Antarctica

Flip Nicklin / Blue Whale (Balaenoptera musculus) with researcher Bruce Mate on boat attempting to attach satellite tag, Santa Barbara, California

Flip Nicklin / Blue Whale (Balaenoptera musculus) with researcher Bruce Mate on boat attempting to attach satellite tag, Santa Barbara, California

Flip Nicklin / Blue Whale (Balaenoptera musculus) with researcher Bruce Mate attempting to attach satellite tag, Santa Barbara, California

Norbert Wu / Coast guard icebreaker travels through ice floes which have broker off sea ice edge in late summer, McMurdo Sound, Antarctica

Flip Nicklin / Gray Whale (Eschrichtius robustus) touched by tourists, San Ignacio Lagoon, Baja California, Mexico

Norbert Wu / Perry submersible used to bring tourists to deep sea, 1,000 meters depth, Grand Cayman, Caribbean

Tui De Roy / Emperor Penguin (Aptenodytes forsteri) trio observing Russian icebreaker parked in fast ice, Princess Martha Coast, Weddell Sea, Antarctica

Tui De Roy / Tourists cruising Beagle Channel beneath Romanche Glacier, Patagonia, Chile

Flip Nicklin / Bowhead Whale (Balaena mysticetus) noses the kayak of biologist Kerry Finley, Isabella Bay, Baffin Island, Canada

Flip Nicklin / Southern Right Whale (Eubalaena australis) researchers Roger Payne, right, Jim Darling, left, and Gustavo Alvarez Colombo, center, watching individual dive, Peninsula Valdez, Argentina

Flip Nicklin / Blue Whale (Balaenoptera musculus) and researchers, Sea of Cortez, Mexico

Flip Nicklin / Blue Whale (Balaenoptera musculus) researcher Bruce Mate attempting to satellite tag whale, California

Jim Brandenburg / Sailboats floating during high tide, Wales, United Kingdom

Jim Brandenburg / Boats stranded at low tide, Wales, United Kingdom

Ingo Arndt / Fisherman on Tisza River on foggy morning, Hungary

Mark Carwardine / Harp seal skins laid out on ice beside sealing vessel, Gulf of St Lawrence, Canada

Mark Carwardine / Harp seal skins laid out on ice beside sealing vessel, Gulf of St Lawrence, Canada

Richard Herrmann / Humpback Whale (Megaptera novaeangliae) and Brown Pelicans (Pelecanus occidentalis) feeding on Northern Anchovies (Engraulis mordax), Avila Bay, California

Donald M. Jones / Grizzly Bear (Ursus arctos horribilis) investigating motor boat, Brooks Falls, Alaska

Jim Brandenburg / Fireweed (Chamerion angustifolium) flowering in meadow with kayaker on lake, Minnesota

Hiroya Minakuchi / Humpback Whale (Megaptera novaeangliae) surfacing near zodiac full of tourists, Antarctic Peninsula, Antarctica

Sergey Gorshkov / Brown Bear (Ursus arctos), at dock with Domestic Dogs (Canis familiaris) Kamchatka, Russia

Sergey Gorshkov / Brown Bear (Ursus arctos) with boat, Kamchatka, Russia

Konrad Wothe / King Penguin (Aptenodytes patagonicus) group going to sea with tourists nearby, St Andrew's Bay, South Georgia Island

Alex Mustard / Diver approaching the wreck of the bow of the USS Kittiwake (US Military submarine rescue vessel) Photograph was taken shortly after the wreck was deliberately sunk as an attraction for scuba divers,...

Alex Mustard / Southern stingray (Hypanus americanus) swimming over sand by the stern of the USS Kittiwake (US Military submarine rescue vessel) with diver in background. Photograph was taken shortly after the wreck...

Alex Mustard / Diver seen through a porthole of the USS Kittiwake (US Military submarine rescue vessel) Photograph was taken shortly after the wreck was deliberately sunk as an attraction for scuba divers, Caribbea...

Alex Mustard / Divers on scooters exploring the wreck of the USS Kittiwake (US Military submarine rescue vessel) Photograph was taken shortly after the wreck was deliberately sunk as an attraction for scuba divers,...

Flip Nicklin / Gray Whale (Eschrichtius robustus) calf being touched by tourist, Baja California, Mexico

Flip Nicklin / Tourists in zodiacs looking at icebergs, Alaska

Flip Nicklin / Cruise ship near glacier, Alaska

Pete Oxford / Motorboat on the Napo River, Amazon, Ecuador

Philip Stephen / Fishing vessel 'Harvester' battling with the elements on the North Sea, Europe, December 2011. Property released.

Philip Stephen / Wick registered fishing vessel "Opportune" using the seine net method of fishing for haddock and flatfish. St. Magnus Bay, Shetland, March 2009.

Philip Stephen / Wick registered fishing vessel "Opportune" using the seine net method of fishing for haddock and flatfish. St. Magnus Bay, Shetland, March 2009.

Philip Stephen / Fishing vessel "Ocean Harvest" rolling in heavy seas, North Sea, October 2008. Property Released.

Philip Stephen / Fishing vessel in heavy seas, North Sea, April 2009. Property released.

Philip Stephen / Fishing vessel in heavy seas, North Sea, April 2009. Property released.

Philip Stephen / Fishing vessel in heavy seas, North Sea, April 2009. Property released.

Benoit Stichelbaut / Escort vessel "Bystander", Concarneau, France, 2007

Benoit Stichelbaut / Escort vessel "Bystander", Concarneau, France, 2007

Philip Stephen / Wick registered fishing vessel "Opportune" using the seine net method of fishing for haddock and flatfish. St. Magnus Bay, Shetland, March 2009.

Philip Stephen / Fishing vessel in heavy seas, North Sea, April 2009. Property released.

Philip Stephen / Fishermen watch the sun go down from a fishing vessel in the North Sea

Philip Stephen / Wick registered fishing vessel "Opportune" using the seine net method of fishing for haddock and flatfish. St. Magnus Bay, Shetland, March 2009.

Philip Stephen / Fishing vessel in heavy seas, North Sea, April 2009. Property released.

Philip Stephen / Norwegian guard vessel "Stril Tender" in heavy weather. North Sea, April 2009.

Philip Stephen / Fishing vessel in heavy seas, North Sea, April 2009. Property released.

Philip Stephen / Fishing vessel in heavy seas, North Sea, April 2009. Property released.

Philip Stephen / Fishing vessel in heavy seas, North Sea, April 2009. Property released.

Philip Stephen / Local Shetland fishing vessel heading to shore for a fish auction in Lerwick. March 2009.

Philip Stephen / Fishing vessel in heavy seas, North Sea, April 2009. Property released.

Philip Stephen / Fishing vessel in heavy seas, North Sea, April 2009. Property released.

Philip Stephen / Fishing vessel in heavy seas, North Sea, April 2009. Property released.

Philip Stephen / Oil rig supply vessel "Highland Citadel" approaching Peterhead Harbour, Scotland, with another ship in the background. September 2008.

Philip Stephen / Oil rig supply vessel "Highland Citadel" approaching Peterhead Harbour, Scotland. September 2008.

Philip Stephen / MFV coming alongside partner vessel to start pair trawling operations. North Sea, 2008. Property released.

Philip Stephen / Wick registered fishing vessel "Opportune" using the seine net method of fishing for haddock and flatfish, surrounded by seagulls. St. Magnus Bay, Shetland, March 2009.