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| Adult male humpback whale singing, suspended motionless underwater. Only male humpbacks have been observed singing. All humpbacks in the North Pacific sing the same whale song each year, and the song changes slightly from one year to the next. Image ID: 02802 Species: Humpback whale, Megaptera novaeangliae Location: Maui, Hawaii, USA | Humpback whale competitive group, several adult male escort whales swimming closely together as part of a larger competitive group. Image ID: 02864 Species: Humpback whale, Megaptera novaeangliae Location: Maui, Hawaii, USA | North Pacific humpback whales, socializing trio of adults. Image ID: 05933 Species: Humpback whale, Megaptera novaeangliae Location: Maui, Hawaii, USA |
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| Scripps Pier, Surfer's view from among the waves. Research pier at Scripps Institution of Oceanography SIO, sunset. Image ID: 30147 Location: Scripps Institution of Oceanography, La Jolla, California, USA | A great white shark is countershaded, with a dark gray dorsal color and light gray to white underside, making it more difficult for the shark's prey to see it as approaches from above or below in the water column. The particular undulations of the countershading line along its side, where gray meets white, is unique to each shark and helps researchers to identify individual sharks in capture-recapture studies. Guadalupe Island is host to a relatively large population of great white sharks who, through a history of video and photographs showing their countershading lines, are the subject of an ongoing study of shark behaviour, migration and population size. Image ID: 19468 Species: Great white shark, Carcharodon carcharias Location: Guadalupe Island (Isla Guadalupe), Baja California, Mexico | North Pacific humpback whales, a mother and young calf swim near scientific research divers. Image ID: 00543 Species: Humpback whale, Megaptera novaeangliae Location: Maui, Hawaii, USA |
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| Humpback whale competitive group, several adult male escort whales swimming closely together as part of a larger competitive group. Image ID: 02862 Species: Humpback whale, Megaptera novaeangliae Location: Maui, Hawaii, USA | Humpback whale breaching, pectoral fin and rostrom visible. Image ID: 27956 Species: Humpback whale, Megaptera novaeangliae Location: San Diego, California, USA | A sea otter, resting on its back, holding its paw out of the water for warmth. While the sea otter has extremely dense fur on its body, the fur is less dense on its head, arms and paws so it will hold these out of the cold water to conserve body heat. Image ID: 21602 Species: Sea otter, Enhydra lutris Location: Elkhorn Slough National Estuarine Research Reserve, Moss Landing, California, USA |
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| Humpback whale head lunge and blow in active group. Image ID: 34537 Location: Maui, Hawaii, USA | Aerial Photo of San Diego Scripps Coastal SMCA. Scripps Institution of Oceanography Research Pier. Image ID: 30627 Location: Scripps Institution of Oceanography, La Jolla, California, USA | Adult male humpback whale singing, suspended motionless underwater. Only male humpbacks have been observed singing. All humpbacks in the North Pacific sing the same whale song each year, and the song changes slightly from one year to the next. Image ID: 02813 Species: Humpback whale, Megaptera novaeangliae Location: Maui, Hawaii, USA |
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| Humpback whale male escort emits a stream of bubbles during competitive group socializing. The whale is swimming so fast that the bubbles pass back alongside the whale. Image ID: 02855 Species: Humpback whale, Megaptera novaeangliae Location: Maui, Hawaii, USA | Male humpback whale bubble streaming underwater. The male escort humpback whale seen here is emitting a curtain of bubbles as it swims behind a mother and calf (barely seen in the distance). Image ID: 04434 Species: Humpback whale, Megaptera novaeangliae Location: Maui, Hawaii, USA | Adult male humpback whale bubble streaming underwater. The male escort humpback whale seen here is emitting a curtain of bubbles as it swims behind a female during competitive group activities. The bubble curtain may be meant as warning or visual obstruction to other nearby male whales interested in the female. Image ID: 04444 Species: Humpback whale, Megaptera novaeangliae Location: Maui, Hawaii, USA |
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| Large competitive group of humpback whales, eleven adult humpback whales seen in this image, part of a 16 whale competitive group. Image ID: 04459 Species: Humpback whale, Megaptera novaeangliae Location: Maui, Hawaii, USA | Hawaiian humpback whale underwater, sun beams dappling the whale in clear oceanic waters. Image ID: 04501 Species: Humpback whale, Megaptera novaeangliae Location: Maui, Hawaii, USA | North Pacific humpback whale, head standing near surface. Image ID: 05941 Location: Maui, Hawaii, USA |
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| Male North Pacific humpback whale streams a trail of bubbles. The primary male escort whale (center) creates a curtain of bubbles underwater as it swims behind a female (right), with other challenging males trailing behind in a competitive group. The bubbles may be a form of intimidation from the primary escort towards the challenging escorts. Image ID: 05968 Species: Humpback whale, Megaptera novaeangliae Location: Maui, Hawaii, USA | Humpback whale, abandoned calf alongside University of Hawaii research boat. This young calf lived only a few days after being abandoned or separated from its mother, and was eventually attacked by tiger sharks. Image ID: 05979 Species: Humpback whale, Megaptera novaeangliae Location: Maui, Hawaii, USA | Adult male north Pacific humpback whale bubble streaming underwater in the midst of a competitive group. The male escort humpback whale seen here is emitting a curtain of bubbles as it swims closely behind a female, . The bubble curtain may be meant as warning or visual obstruction to other nearby males interested in the female. Image ID: 05999 Species: Humpback whale, Megaptera novaeangliae Location: Maui, Hawaii, USA |
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| Hawaiian humpback whale underwater, sun beams dappling the whale in clear oceanic waters. Image ID: 06007 Location: Maui, Hawaii, USA | Adult male north Pacific humpback whale bubble streaming underwater in the midst of a competitive group. The male escort humpback whale seen here is emitting a curtain of bubbles as it swims closely behind a female, . The bubble curtain may be meant as warning or visual obstruction to other nearby males interested in the female. Image ID: 06037 Species: Humpback whale, Megaptera novaeangliae Location: Maui, Hawaii, USA | Black's Beach sea cliffs, sunset, looking north from Scripps Pier with Torrey Pines State Reserve in the distance. Image ID: 30153 Location: Scripps Institution of Oceanography, La Jolla, California, USA |
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| A bull sea lion shows a brand burned into its hide by the Oregon Department of Fish and Wildlife, to monitor it from season to season as it travels between California, Oregon and Washington. Some California sea lions, such as this one C-704, prey upon migrating salmon that gather in the downstream waters and fish ladders of Bonneville Dam on the Columbia River. The "C" in its brand denotes Columbia River. These sea lions also form bachelor colonies that haul out on public docks in Astoria's East Mooring Basin and elsewhere, where they can damage or even sink docks. Image ID: 19419 Species: California sea lion, Zalophus californianus Location: Columbia River, Astoria, Oregon, USA | A great white shark is countershaded, with a dark gray dorsal color and light gray to white underside, making it more difficult for the shark's prey to see it as approaches from above or below in the water column. The particular undulations of the countershading line along its side, where gray meets white, is unique to each shark and helps researchers to identify individual sharks in capture-recapture studies. Guadalupe Island is host to a relatively large population of great white sharks who, through a history of video and photographs showing their countershading lines, are the subject of an ongoing study of shark behaviour, migration and population size. Image ID: 19455 Species: Great white shark, Carcharodon carcharias Location: Guadalupe Island (Isla Guadalupe), Baja California, Mexico | A great white shark is countershaded, with a dark gray dorsal color and light gray to white underside, making it more difficult for the shark's prey to see it as approaches from above or below in the water column. The particular undulations of the countershading line along its side, where gray meets white, is unique to each shark and helps researchers to identify individual sharks in capture-recapture studies. Guadalupe Island is host to a relatively large population of great white sharks who, through a history of video and photographs showing their countershading lines, are the subject of an ongoing study of shark behaviour, migration and population size. Image ID: 19456 Species: Great white shark, Carcharodon carcharias Location: Guadalupe Island (Isla Guadalupe), Baja California, Mexico |
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| A great white shark is countershaded, with a dark gray dorsal color and light gray to white underside, making it more difficult for the shark's prey to see it as approaches from above or below in the water column. The particular undulations of the countershading line along its side, where gray meets white, is unique to each shark and helps researchers to identify individual sharks in capture-recapture studies. Guadalupe Island is host to a relatively large population of great white sharks who, through a history of video and photographs showing their countershading lines, are the subject of an ongoing study of shark behaviour, migration and population size. Image ID: 19458 Species: Great white shark, Carcharodon carcharias Location: Guadalupe Island (Isla Guadalupe), Baja California, Mexico | A great white shark is countershaded, with a dark gray dorsal color and light gray to white underside, making it more difficult for the shark's prey to see it as approaches from above or below in the water column. The particular undulations of the countershading line along its side, where gray meets white, is unique to each shark and helps researchers to identify individual sharks in capture-recapture studies. Guadalupe Island is host to a relatively large population of great white sharks who, through a history of video and photographs showing their countershading lines, are the subject of an ongoing study of shark behaviour, migration and population size. Image ID: 19459 Species: Great white shark, Carcharodon carcharias Location: Guadalupe Island (Isla Guadalupe), Baja California, Mexico | A great white shark is countershaded, with a dark gray dorsal color and light gray to white underside, making it more difficult for the shark's prey to see it as approaches from above or below in the water column. The particular undulations of the countershading line along its side, where gray meets white, is unique to each shark and helps researchers to identify individual sharks in capture-recapture studies. Guadalupe Island is host to a relatively large population of great white sharks who, through a history of video and photographs showing their countershading lines, are the subject of an ongoing study of shark behaviour, migration and population size. Image ID: 19460 Species: Great white shark, Carcharodon carcharias Location: Guadalupe Island (Isla Guadalupe), Baja California, Mexico |
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