A sperm whale (Physeter macrocephalus), slapping the water with its tail fluke, Sri Lanka, Indian Ocean, Asia

A humpback whale (Megaptera novaeangliae), slaps the surface of the water with its tail, United States of America, Pacific, North America

The tail of a humpback whale (Megaptera novaeangliae), off the coast of Lanai, Hawaii, United States of America, Pacific, North America

Humpback whale (Megaptera novaeangliae), underwater, Hawaii, United States of America, Pacific, North America

A humpback whale (Megaptera novaeangliae), tail slapping the surface of the Pacific Ocean off Hawaii, United States of America, Pacific, North America

Humpback whale (Megaptera novaeangliae), underwater off the coast of Hawaii, United States of America, Pacific, North America

Mother and calf humpback whales, Megaptera novaeangliae, swim in the clear, blue waters of the Caribbean Sea.

A humpback whale, Megaptera novaeangliae, raises its powerful fluke out of the blue waters of the Caribbean Sea and slams it down on the surface to communicate.

A humpback whale and her calf at the surface.

Humpback whale (Megaptera novaeangliae) calf learning to slap the water surface.

Humpback whale (Megaptera novaeangliae) mother and her calf.

Adult fin whale (Balaenoptera physalus), dorsal fin detail surfacing off Newport Beach, California, United States of America, North America

Juvenile humpback whale (Megaptera novaeangliae) breaching near the Antarctic Peninsula, Antarctica, Polar Regions

Southern right whale (Eubalaena australis) mother being harassed by kelp gull, near Puerto Pyramides, Argentina

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

Adult humpback whales (Megaptera novaeangliae) co-operatively bubble-net feeding in Southeast Alaska, United States of America

Adult brown bear (Ursus arctos) feeding on humpback whale carcass in Glacier Bay National Park, Alaska, United States of America

Gathering of at least two resident pods of killer whales (Orcinus orca) encountered near sunset, Johnstone Strait, British Columbia, Canada

Gathering of at least two resident pods of killer whales (Orcinus orca) encountered near sunset, Johnstone Strait, British Columbia, Canada

Adult fin whale (Balaenoptera physalus) sub-surface feeding in the rich waters off the Svalbard Archipelago, Norway

A rare sighting of an adult blue whale (Balaenoptera musculus) sub-surface feeding in the Svalbard Archipelago, Norway

Adult glaucous gull (Larus hyperboreus) near fin whale carcass in the Svalbard Archipelago, Norway

A mother polar bear (Ursus maritimus), and cub of the year leaving a fin whale carcass in Holmabukta in the Svalbard Archipelago, Norway

Mother polar bear (Ursus maritimus) and cub-of-the-year disputing then allowing a male bear to feed on a fin whale, Svalbard Archipelago, Norway

Mother polar bear (Ursus maritimus) with cub of the year feeding near a fin whale carcass in Svalbard, Norway

Adult humpback whale (Megaptera novaeangliae), breaching in the fjord of Isfjardardjup, Iceland

Adult humpback whale (Megaptera novaeangliae), head-lunging in the fjord of Isfjardardjup, Iceland

A young humpback whale, Megaptera novaeangliae, breaches out of the blue waters of the Caribbean Sea.

A humpback whale, Megaptera novaeangliae, raises its powerful fluke out of the blue waters of the Caribbean Sea and slams it down on the surface to communicate.

A magnificent humpback whale, Megaptera novaeangliae, swims in the clear, blue waters of the Caribbean Sea.

A magnificent humpback whale, Megaptera novaeangliae, swims in the clear, blue waters of the Caribbean Sea.

A humpback whale and her calf play near the surface.

Skull of an adult killer whale (Orcinus orca), on display inside the town of Stanley, Falkland Islands, South Atlantic Ocean, South America

Southern right whale (Eubalaena australis) adult female flukes-up to catch the wind in Puerto Pyramides, Argentina, South America

Southern right whale (Eubalaena australis) flukes-up dive near whale watching boat in Puerto Pyramides, Argentina, South America

Southern right whale (Eubalaena australis) adult female flukes-up to catch the wind in Puerto Pyramides, Argentina, South America

Southern right whale (Eubalaena australis) adult female flukes-up to catch the wind in Puerto Pyramides, Argentina, South America

Adult female killer whale (Orcinus orca) surfacing in Chatham Strait, Southeast Alaska, United States of America, Pacific Ocean, North America

Humpback whale (Megaptera novaeangliae) mother and her calf.

Humpback whale (Megaptera novaeangliae) surfacing in the Weddell Sea near the Antarctic Peninsula, Antarctica, Polar Regions

Southern Right Whale (Eubalaena australis) adult surfacing near Puerto Pyramides, Peninsula Valdez, Argentina

Southern Right Whale (Eubalaena australis) adult surfacing near Puerto Pyramides, Peninsula Valdez, Argentina

Southern Right Whale (Eubalaena australis) mother and calf being harassed by kelp gull, Peninsula Valdez, Argentina

Southern right whale (Eubalaena australis) mother and calf being harassed by kelp gull, Peninsula Valdez, Argentina

Southern right whale (Eubalaena australis) calf surfacing near Puerto Pyramides, Golfo Nuevo, Peninsula Valdez, Argentina

Southern right whale (Eubalaena australis) adult surfacing near Puerto Pyramides, Peninsula Valdez, Argentina

Adult humpback whales (Megaptera novaeangliae) co-operatively bubble-net feeding in Southeast Alaska, United States of America

Adult humpback whales (Megaptera novaeangliae) co-operatively bubble-net feeding in Southeast Alaska, United States of America

Adult humpback whale (Megaptera novaeangliae) tail throw among feeding whales in Southeast Alaska, United States of America

Adult brown bears (Ursus arctos) feeding on humpback whale carcass, Scidmore Cut, Glacier Bay National Park, Alaska, United States of America

A juvenile killer whale (Orcinus orca) encountered off West Craycroft Island in Blackfish Sound, British Columbia, Canada

Young male polar bear (Ursus maritimus), feeding on a fin whale carcass in Holmabukta in the Svalbard Archipelago, Norway

A mother polar bear (Ursus maritimus), with cub of the year feeding on a fin whale carcass in Holmabukta, Svalbard, Norway

Mother and calf humpback whales, Megaptera novaeangliae, swim in the clear, blue waters of the Caribbean Sea.

Southern right whale (Eubalaena australis) mother and calf near whale watching boat in Puerto Pyramides, Argentina, South America

Southern right whale (Eubalaena australis) adult female flukes-up to catch the wind in Puerto Pyramides, Argentina, South America

Southern right whale (Eubalaena australis) adult female surfacing head on in Puerto Pyramides, Golfo Nuevo, Argentina, South America

Southern right whale (Eubalaena australis) adult female lifting both her head and flukes out of the water, Argentina, South America

Southern right whale (Eubalaena australis) adult female lifting both her head and flukes out of the water in Argentina, South America

A young killer whale (Orcinus orca) surfacing in Glacier Bay National Park, Southeast Alaska, United States of America, Pacific Ocean, North America

King penguins (Aptenodytes patagonicus) at breeding and nesting colony at Right Whale Bay, South Georgia, Polar Regions

Adult fin whale (Balaenoptera physalus) surfacing in the rich waters off the continental shelf near South Georgia, Polar Regions

Baleen whale skeleton, most likely a young Bryde's whale, on lava flow in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

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

Adult humpback whale (Megaptera novaeangliae) tail throw among feeding whales in Southeast Alaska, United States of America

Killer whale female (Orcinus orca), surfacing off Isla San Lorenzo, Baja California, Sea of Cortez, Mexico, North America

Just a split second before surfacing, a Beluga whale (Delphinapterus leucas) opens its blowhole to exhale ready to inhale when the blowhole has cleared the water. Beluga whales are an endangered and protected species in the St. Lawrence estuary, Canada

The white tip of a Finback whaleÌs (Balaenoptera physalus) snout showing a distinctive characteristic of this species; the lower right jaw is white in colour whereas the left side is dark. Gasp», Canada

Three species of barnacles, Coronula diadema, Cryptolepas rhachianecti, Conchoderma testudini

Snorkellers getting close up to the elusive Whale shark (Rhincodon typus). Species Endangered. Sharm El Sheikh, South Sinai, Red Sea, Egypt (rr)

Snorkellers getting close up to the elusive Whale shark (Rhincodon typus). Species Endangered. Sharm El Sheikh, South Sinai, Red Sea, Egypt (rr)

Cuvier's beaked whale (ziphius cavirostris) A Cuvier's beaked whale showing the familiar scarring and odd coloouration of this species. The Canary Islands.

Minke whale (Balaenoptera acutorostrata) surfacing at speed after lunging through bait ball of fish under seagulls. Husavik, Iceland

Juvenile Beluga whale (Delphinapterus leucas), an endangered and protected species, lifts its head to take a look at the research vessel. Beluga calves are dark in colour and turn white at seven to nine years of age. St. Lawrence estuary, Canada

Killer whale (Orcinus orca) forgaging with gulls (on herring) as they move up the fjords. Tysford, northern Norway.

Snorkellers getting close up to the elusive Whale shark (Rhincodon typus). Species Endangered. Sharm El Sheikh, South Sinai, Red Sea, Egypt

Snorkellers getting close up to the elusive Whale shark (Rhincodon typus). Species Endangered. Sharm El Sheikh, South Sinai, Red Sea, Egypt

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A possible new species of Orca (Killer Whale) called "Type B" Orca (with a proposed new scientific name of Orcinus nanus) traveling in the Lemaire Strait, Antarctica

The white bodies of a group of Beluga whales (Delphinapterus leucas) breaking the surface of the calm water. These beluga whales that live in the St. Lawrence, Canada, year-round belong to the furthest southerly population of this arctic whale species.

A possible new species of Orca (Killer Whale) called "Type B" Orca (with a proposed new scientific name of Orcinus nanus) traveling in the Lemaire Strait, Antarctica

Adult humpback whale (Megaptera novaeangliae) sub-surface feeding among black-legged kittiwakes (Rissa tridactyla) off the continental shelf west of Spitsbergen in the Barents Sea, Norway. Humpbacks are one of the larger rorqual species, adults range in length from 12?16 metres (40?50 ft) and weigh approximately 36,000 kilograms (79,000 lb). There are at least 80,000 humpback whales worldwide.

Adult humpback whale (Megaptera novaeangliae) sub-surface feeding among black-legged kittiwakes (Rissa tridactyla) off the continental shelf west of Spitsbergen in the Barents Sea, Norway. Humpbacks are one of the larger rorqual species, adults range in length from 12?16 metres (40?50 ft) and weigh approximately 36,000 kilograms (79,000 lb). There are at least 80,000 humpback whales worldwide.

Fin whale and Humpback whale Two different species of whale travelling together. Gulf of California. (RR)

A possible new species of Orca (Killer Whale) called "Type B" Orca (with a proposed new scientific name of Orcinus nanus) traveling in the Lemaire Strait, Antarctica

Adult humpback whale (Megaptera novaeangliae) sub-surface feeding among black-legged kittiwakes (Rissa tridactyla) off the continental shelf west of Spitsbergen in the Barents Sea, Norway. Humpbacks are one of the larger rorqual species, adults range in length from 12?16 metres (40?50 ft) and weigh approximately 36,000 kilograms (79,000 lb). There are at least 80,000 humpback whales worldwide.

A possible new species of Orca (with a proposed new scientific name of Orcinus nanus) traveling in the Lemaire Strait, Antarctica

Grey whale (Eschrichtius robustus) surfacing to blow near boat. Yellowish barnacles and mottled pigmentation typical of this species. Baja California, Mexico

A possible new species of Orca (with a proposed new scientific name of Orcinus nanus) traveling in the Lemaire Strait, Antarctica

A possible new species of Orca (with a proposed new scientific name of Orcinus nanus) traveling in the Lemaire Strait, Antarctica

Pacific humpback whale calf,Megaptera novaeangliae, breaching off the west coast of Maui, Hawaii.

Adult humpback whale fluke-up dive in Frederick Sound, southeast Alaska, USA.

Adult humpback whale fluke-up dive in Frederick Sound, southeast Alaska, USA.

Pacific humpback whale calf breach / lunge along the coast of West Maui, Hawaii, USA.

Adult Gray Whale, Eschrichtius robustus, eye detail, San Ignacio Lagoon, Baja, Mexico

Pacific humpback whale calf, Megaptera novaeangliae, breaching in the Au Au Channel near Maui, Hawaii.

Sperm whale. (Physeter macrocephalus). The tail of a sperm whale showing the sloughed skin typical of this species. Caribbean.

Polar Bear (Ursa maritimus) in fireweed (Epilobium angustifolium) on an island off the sub-arctic coast of Hudson Bay, Churchill, Manitoba, Canada. Bears come to spend the summer loafing on the island and looking for a careless seal or dead whale to wash up. Global warming has shortened their winter so they are increasingly looking for food in the summer.

Polar Bear (Ursa maritimus) in fireweed (Epilobium angustifolium) on an island off the sub-arctic coast of Hudson Bay, Churchill, Manitoba, Canada. Bears come to spend the summer loafing on the island and looking for a careless seal or dead whale to wash up. Global warming has shortened their winter so they are increasingly looking for food in the summer.

Polar Bear (Ursa maritimus) in fireweed (Epilobium angustifolium) on an island off the sub-arctic coast of Hudson Bay, Churchill, Manitoba, Canada. Bears come to spend the summer loafing on the island and looking for a careless seal or dead whale to wash up. Global warming has shortened their winter so they are increasingly looking for food in the summer.