Wild Wonders of Europe / Lundgre / Sperm whales (Physeter macrocephalus) resting, Pico, Azores, Portugal, June 2009. BOOK & WWE OUTDOOR EXHIBITION.

Doug Perrine / Bryde's whale {Balaenoptera brydei / edeni} with throat pleats expanded after feeding on baitball of Sardines {Sardinops sagax} off Baja California, Mexico, Eastern Pacific Ocean. Veolia Environnement...

Mark Brownlow / Sperm whale {Physeter macrocephalus} diving, tail fluke, Kaikoura, South Island, New Zealand

Andy Rouse / Bottlenosed dolphin (Tursiops truncatus) jumping, Caribbean (non-ex). Exclusive jigsaw puzzle rights worldwide sold until 31.12.2014.

DOC WHITE / Blue whale underwater close-up of head and mouth feeding with pouch inflated, Mexico

Chris Gomersall / 2020VISION / Killer whale (Orcinus orca) following Shetland pelagic trawler 'Charisma' close to Eshaness. October 2012.

Chris Gomersall / 2020VISION / Killer whale (Orcinus orca) following Shetland pelagic trawler 'Charisma', near Shetland Isles, Scotland, UK, October 2012.

Doc White / Blue Whales (Balaenoptera musculus) throat inflated, filter feeding at sea surface. California, USA. Sequence 1 of 2.

Doc White / Humpback Whale (Megaptera novaeangliae) calf. Tonga, South Pacific, September.

Doc White / Humpback Whale (Megaptera novaeangliae) calf. Tonga, South Pacific, September.

Doc White / Humpback Whale (Megaptera novaeangliae) calf, Tonga, South Pacific, September.

Doc White / Humpback Whale (Megaptera novaeangliae) calf, Tonga, South Pacific, September.

Doc White / Humpback Whale (Megaptera novaeangliae) calf. Tonga, South Pacific, September.

Doc White / Humpback Whale (Megaptera novaeangliae) mother and calf. Tonga, South Pacific, September.

Doc White / Humpback Whale (Megaptera novaeangliae) mother and calf at sea surface. Tonga, South Pacific, September.

Doc White / Humpback Whale (Megaptera novaeangliae) mother and calf. Tonga, South Pacific, September.

Doc White / Humpback Whale (Megaptera novaeangliae) female. Tonga, South Pacific, September.

Mark Carwardine / Hands of a tourist leaning from boat to touch the mouth of a friendly Grey whale (Eschrichtius robustus) lying on the surface, San Ignacio Lagoon, Baja California, Mexico, April 2009

Mark Carwardine / Grey whale (Eschrichtius robustus) underwater, San Ignacio Lagoon, Baja California, Mexico

Mark Carwardine / Split-level of tourist in small boat leaning out to touch a Grey whale (Eschrichtius robustus) San Ignacio Lagoon, Baja California, Mexico, April 2009

Mark Carwardine / Tourists watching Grey whale (Eschrichtius robustus) spyhopping, San Ignacio Lagoon, Baja California, Mexico, February 2010

Mark Carwardine / Grey whale (Eschrichtius robustus) spyhopping, San Ignacio Lagoon, Baja California, Mexico

Mark Carwardine / Tourists in small boat leaning out to touch a curious Grey whale (Eschrichtius robustus) San Ignacio Lagoon, Baja California, Mexico, March 2007

Mark Carwardine / Tourists in small boat watching curious Grey whale (Eschrichtius robustus) spyhopping, San Ignacio Lagoon, Baja California, Mexico, February 2007

Mark Carwardine / Grey whale (Eschrichtius robustus) close-up of eye, San Ignacio Lagoon, Baja California, Mexico

Mark Carwardine / Dwarf minke whale, thought to form a yet-to-be named sub-species of the Common minke whale {Balaenoptera acutorostrata}, Ribbon Reefs, Great Barrier Reef, Queensland, Australia

Mark Carwardine / Rear view of Dwarf minke whale, thought to form a yet-to-be named sub-species of the Common minke whale {Balaenoptera acutorostrata}, Ribbon Reefs, Great Barrier Reef, Queensland, Australia

Mark Carwardine / Tail flippers of Dwarf minke whale, thought to form a yet-to-be named sub-species of the Common minke whale {Balaenoptera acutorostrata}, Ribbon Reefs, Great Barrier Reef, Queensland, Australia

Mark Carwardine / Two Humpback whales (Megaptera novaeangliae) bubble-net feeding very close to shore, Great Bear Rainforest, British Columbia, Canada, Endangered or threatened species (Vulnerable)

Mark Carwardine / Humpback whales (Megaptera novaeangliae) feeding on herring, showing palate and baleen plates, Frederick Sound, South East Alaska, USA, Endangered or threatened species (Vulnerable)

Mark Carwardine / Yangtze / Chinese river dolphin / Baiji {Lipotes vexillifer} Critically endangered - officially declared extinct late 2007. This individual (a male called Qi-Qi) was photographed in captivity in 1988...

Mark Carwardine / Blue whale (Balaenoptera musculus) blowing, Baja California, Sea of Cortez (Gulf of California), Mexico, Endangered species

Mark Carwardine / Grey whale calf (Eschrichtius robustus), San Ignacio Lagoon, Baja California, Mexico

Mark Carwardine / Blue whale (Balaenoptera musculus) fluking, Baja California, Sea of Cortez (Gulf of California), Mexico, Endangered species

Mark Carwardine / Grey whale (Eschrichtius robustus) calf upside down, San Ignacio Lagoon, Baja California, Mexico

Mark Carwardine / Blue whale (Balaenoptera musculus) fluking, Baja California, Sea of Cortez (Gulf of California), Mexico, Endangered species

Mark Carwardine / California sealions (Zalophus californianus), one in water with other sitting on rock, Baja California, Sea of Cortez (Gulf of California), Mexico

Mark Carwardine / Grey whale (Eschrichtius robustus), San Ignacio Lagoon, Baja California, Mexico

Mark Carwardine / Common bottlenose dolphin (Tursiops truncatus) swimming fast, Baja California, Sea of Cortez (Gulf of California), Mexico

Mark Carwardine / Long-beaked common dolphin (Delphinus capensis) porpoising swimming fast, Baja California, Sea of Cortez (Gulf of California), Mexico

Mark Carwardine / Common bottlenose dolphin (Tursiops truncatus) surfacing, Baja California, Sea of Cortez (Gulf of California), Mexico

Mark Carwardine / Common bottlenose dolphin (Tursiops truncatus) surfacing, Baja California, Sea of Cortez (Gulf of California), Mexico

Mark Carwardine / Smoothtail Ray / Mobula (Mobula thurstoni) flying out of the water, Baja California, Sea of Cortez (Gulf of California), Mexico

Mark Carwardine / Amazon river dolphin, pink river dolphin or boto (Inia geoffrensis) Rio Negro, Brazil (Amazon) - wild animal breaching Threatened species (IUCN Red List)

Mark Carwardine / Amazon / Pink river dolphin / Boto {Inia geoffrensis} Rio Negro, Amazon, Brazil Threatened species (IUCN Red List)

Mark Carwardine / Amazon / pink river dolphin / boto (Inia geoffrensis) Rio Negro, Brazil (Amazon) wild animal breaching, Threatened species (IUCN Red List)

Mark Carwardine / Amazon / Pink river dolphin / Boto {Inia geoffrensis} breaching, Rio Negro, Amazon, Brazil Threatened species (IUCN Red List)

Mark Carwardine / Amazon river dolphin, pink river dolphin or boto (Inia geoffrensis) Rio Negro, Brazil (Amazon) - two wild animals fighting over fish Threatened species (IUCN Red List)

Mark Carwardine / Amazon / pink river dolphin / boto (Inia geoffrensis) Rio Negro, Brazil (Amazon) wild animal underwater in tannin rich river, Threatened species (IUCN Red List)

Mark Carwardine / Amazon / pink river dolphin / boto (Inia geoffrensis) Rio Negro, Brazil (Amazon) wild animal underwater in tannin rich river, Threatened species (IUCN Red List)

Mark Carwardine / Amazon / pink river dolphin / boto (Inia geoffrensis) Rio Negro, Brazil (Amazon) wild animal underwater in tannin rich river, Threatened species (IUCN Red List)

Mark Carwardine / Pacific white-sided dolphin / Lag (Lagenorhynchus obliquidens) swimming fast, showing dorsal fin, Johnstone Strait, Vancouver Island, British Columbia, western Canada

Mark Carwardine / Aerial view of adult female Blue whale (Balaenoptera musculus), Sea of Cortez (Gulf of California), Baja California, Mexico (Pacific coast), Endangered species

Mark Carwardine / Watching Killer whale underwater in aquarium {Orcinus orca} USA

Mark Carwardine / Common dolphins bow riding {Delphinus delphis} Gibraltar

Mark Carwardine / Yangtze river dolphin {Lipotes vexillifer} captive, Wuhan, China, crit endangered

Mark Carwardine / Antarctic minke whales {Balaenoptera bonaerensis} Antarctica

Mark Carwardine / Humpback whale lobtailing {Megaptera novaengliae} Dominican Republic, Caribbean

Mark Carwardine / Dusky dolphin breaching {Lagenorhynchus obscurus} Kaikoura, New Zealand

Mark Carwardine / Humpback whale lobtailing {Megaptera novaengliae} Dominican Republic, Caribbean

Mark Carwardine / Aerial view of Blue whale + calf {Balaenoptera musculus} Sea of Cortez, Mexico

Mark Carwardine / Risso's dolphin surfacing {Grampus griseus} The Maldives

Mark Carwardine / Large school of Common dolphins feed on Sardines, False Bay, W Cape, S Africa {Delphinus

Mark Carwardine / Aerial view of blue whale {Balaenoptera musculus}, Sea of Cortez, Mexico

Mark Carwardine / Humpback whale breaching {Megaptera novaengliae} Dominican Republic, Caribbean

Mark Carwardine / Killer whale {Orcinus orca} hunting sealion pup Patagonia, Argentina

Mark Carwardine / Melon headed whale + calf bow riding {Peponocephala electra} Maldives

Steven Kazlowski / Killer whale (Orcinus orca) large pod with one male approaching, in Kenai Fjords National Park, Chiswell Islands National Marine Sanctuary, South Central Alaska, USA

Doc White / Amazon river dolphin (Inia geoffrensis), Rio Negro, Amazonia, Brazil

Doc White / Amazon river dolphin (Inia geoffrensis), Rio Negro, Amazonia, Brazil

Steven Kazlowski / Killer WHale / Orca (Orcinus orca) bull and cow in Resurrection Bay, Kenai Fjords National Park, outside Seward, Alaska, May.

Cheryl-Samantha Owen / Spinner dolphins (Stenella longirostris) swimming just below surface, Aldabra Atoll, Seychelles, Indian Ocean

Brent Stephenson / Short-beaked common dolphin (Delphinus delphis) breaking the surface and leaping from the water. Off Napier, Hawkes Bay, New Zealand.

Philippe Clement / Stranded Sperm whale (Physeter macrocephalus) on beach at Knokke, Belgium, February 2012. No release available.

Roland Seitre / Spinner Dolphin (Stenella longirostris) breaching. Mayotte, Madagascar.

Roland Seitre / Atlantic Spotted Dolphin (Stenella frontalis). The Bahamas.

Roland Seitre / Atlantic Spotted Dolphin (Stenella frontalis) swimming in unison, seen from above. Azores.

Roland Seitre / Irrawaddy Dolphins (Orcaella brevirostris) jumping from water. Captive, Thailand.

Roland Seitre / Irrawaddy Dolphin (Orcaella brevirostris) swimming on its back. Captive, Thailand.

Roland Seitre / Irrawaddy Dolphin (Orcaella brevirostris) spitting water. Captive, Thailand.

Roland Seitre / Finless Porpoises (Neophocaena phocaenoides) swimming in unison. Captive. Endemic to South East Asia and the Yangtse River.

Roland Seitre / Pod of Common Dolphin (Delphinus delphis) under water surface. The Azores.

Brent Stephenson / Humpback whale fin (Megaptera novaeangliae) with cruiseship passengers watching from a zodiac, Admiralty Island, Alaska, United States, July. No release available.

Brent Stephenson / Dusky dolphin (Lagenorhynchus obscurus) somersaults from the water, Kaikoura, Canterbury, New Zealand. February.

Chris Gomersall / 2020VISION / Two Killer whales (Orcinus orca) with a solitary Fulmar (Fulmarus glacialis) seen from the pelagic trawler 'Charisma' in evening light, Shetland Islands, Scotland, UK, October 2011

Chris Gomersall / 2020VISION / Common dolphin (Delphinus delphis) bow-riding, near South Uist, Outer Hebrides, Scotland, UK, June

Chris Gomersall / 2020VISION / Common dolphin (Delphinus delphis) at surface, near South Uist, Outer Hebrides, Scotland, UK, June

Chris Gomersall / 2020VISION / Common dolphins (Delphinus delphis) breaching, near South Uist, Outer Hebrides, Scotland, UK, June

Chris Gomersall / 2020VISION / Common dolphins (Delphinus delphis) breaching, near South Uist, Outer Hebrides, Scotland, UK, June. Did you know? Common dolphins travel in large social groups and are very acrobatic, often seen breac...

Chris Gomersall / 2020VISION / Common dolphins (Delphinus delphis) bow-riding, near South Uist, Outer Hebrides, Scotland, UK, June

Brent Stephenson / Dusky Dolphins (Lagenorhynchus obscurus) porpoising as they swim beside a boat. Off Kaikoura, Canterbury, New Zealand, October.

Todd Mintz / Narwhal (Monodon monoceros) pod at surface with one tusk visible, Arctic Bay, Baffin Island, Canada, June

Todd Mintz / Narwhal (Monodon monoceros) diving sequence 1/4, Pond Inlet, Nunavut, Baffin Island, Canadian Arctic, June

Robin Chittenden / Common dolphin (Delphinus delphis) leaping, Algarve, Portugal, October

Doc White / Beluga / White Whale (Delphinapterus leucas) near sea surface. Canada, summer. Captive

Doc White / Girl in aquarium watching Beluga / White Whale (Delphinapterus leucas) in aquarium. Captive. Model released.