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Magellanic penguins (Spheniscus magellanicus) at a breeding and molting site in Estancia San Lorenzo, 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
An adult bull killer whale (Orcinus orca) surfacing in Johnstone Strait, British Columbia, Canada, Pacific Ocean, North America
Horse-eye jacks (Caranx latus), schooling in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize
Underwater view of the reef along the circumference of the Great Blue Hole on Lighthouse Reef, UNESCO, Belize
Nurse sharks (Ginglymostoma cirratum), being fed in shark and ray alley, Caye Caulker, Mesoamerican Barrier Reef, Belize
Nurse sharks (Ginglymostoma cirratum), being fed in shark and ray alley, Caye Caulker, Mesoamerican Barrier Reef, Belize
Nurse sharks (Ginglymostoma cirratum), being fed in shark and ray alley, Caye Caulker, Mesoamerican Barrier Reef, Belize
Nurse shark (Ginglymostoma cirratum), with boat in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize
Nurse sharks (Ginglymostoma cirratum), massing in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize
Southern stingray (Hypanus americanus), with snorkeler in shark and ray alley, Caye Caulker, Mesoamerican Barrier Reef, Belize
Southern stingray (Hypanus americanus) over sand in shark and ray alley, Caye Caulker, Mesoamerican Barrier Reef, Belize
Southern stingray (Hypanus americanus) over sand in shark and ray alley, Caye Caulker, Mesoamerican Barrier Reef, Belize
Tourists hand-feeding tarpon (Megalops atlaticus), at feeding station inside the Mesoamerican Barrier Reef, Belize
West Indian manatee (Trichechus manatus), with sharksucker, Caye Caulker, inside the Mesoamerican Barrier Reef, Belize
West Indian manatee (Trichechus manatus), with snorkelers near Caye Caulker, inside the Mesoamerican Barrier Reef, Belize
West Indian manatee (Trichechus manatus), with snorkeler near Caye Caulker, inside the Mesoamerican Barrier Reef, Belize
West Indian manatee (Trichechus manatus), with snorkeler near Caye Caulker, inside the Mesoamerican Barrier Reef, Belize
Green sea turtle (Chelonia mydas), feeding on the sand near Caye Caulker, inside the Mesoamerican Barrier Reef, Belize
Green sea turtle (Chelonia mydas), feeding on the sand near Caye Caulker, inside the Mesoamerican Barrier Reef, Belize
Green sea turtle (Chelonia mydas), feeding on the sand near Caye Caulker, inside the Mesoamerican Barrier Reef, Belize
Green sea turtle (Chelonia mydas), surfacing for air near Caye Caulker, inside the Mesoamerican Barrier Reef, Belize
Caribbean spiny lobster (Panulirus argus), underwater at Half Moon Caye, UNESCO, Mesoamerican Barrier Reef, Belize
A myriad of fish and coral underwater at Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize
A myriad of fish and coral underwater at Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize
Green sea turtle (Chelonia mydas), surfacing for air near Caye Caulker, inside the Mesoamerican Barrier Reef, Belize
Green sea turtle (Chelonia mydas), with snorkeler near Caye Caulker, inside the Mesoamerican Barrier Reef, Belize
A pair of Mesoamerican sliders (Trachemys venusta), on New River near Lamanai, Belize
Sangha River in the Trinational Lobeke National Park, Republic of Congo
Northern (Steller) sea lions, (Eumetopias jubatus), hauled out on South Marble Island, Glacier Bay National Park, Alaska, United States of America
Northern (Steller) sea lions, (Eumetopias jubatus), hauled out on South Marble Island, Glacier Bay National Park, Alaska, United States of America
Northern (Steller) sea lion (Eumetopias jubatus) fishing on the flood tide in Inian Pass, Southeastern Alaska, United States of America
Adult sea otter (Enhydra lutris kenyoni) in kelp bed in Inian Pass, Southeastern Alaska, United States of America
Adult sea otter (Enhydra lutris kenyoni) in kelp bed in Inian Pass, Southeastern Alaska, United States of America
Adult humpback whale (Megaptera novaeangliae) tail throw among feeding whales 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
A juvenile killer whale (Orcinus orca) encountered off West Craycroft Island in Blackfish Sound, British Columbia, Canada
A juvenile killer whale (Orcinus orca) encountered off West Craycroft Island in Blackfish Sound, British Columbia, Canada
Gathering of at least two resident pods of killer whales (Orcinus orca) encountered near sunset, Johnstone Strait, British Columbia, Canada
Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bears (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bears (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bears (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bears (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bears (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bears (Ursus arctos) disputing fishing rights for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bears (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bears (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bears (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bears (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Young brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bears (Ursus arctos) disputing fishing rights for salmon in the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bear (Ursus arctos) foraging for salmon in the Brooks River, Katmai National Park, Alaska, United States of America
Alaskan brown bears (Ursus arctos) sow and cubs foraging for salmon in the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult dovekie (Alle alle alle) breeding area on the island of Bolscheoya in the Svalbard Archipelago, Norway
Adult long-tailed ducks (Clangula hyemalis) in breeding plumage in the Svalbard Archipelago, Norway
Adult fin whale (Balaenoptera physalus) sub-surface feeding in the rich waters off the Svalbard Archipelago, Norway
Adult fin whale (Balaenoptera physalus) sub-surface feeding in the rich waters off the Svalbard Archipelago, Norway
Adult razorbill (Alca torda) taking flight in the Svalbard Archipelago, Norway
Adult common (northern) minke whale (Balaenoptera acutorostrata) sub-surface feeding in the Svalbard Archipelago, Norway
A rare sighting of an adult blue whale (Balaenoptera musculus) sub-surface feeding in the Svalbard Archipelago, Norway
Adult bearded seal (Erignathus barbatus) hauled out on the ice in the Svalbard Archipelago, Norway
Adult bearded seal (Erignathus barbatus) hauled out on the ice in the Svalbard Archipelago, Norway
Northern fulmar (Fulmarus glacialis glacialis) on the wing in the Svalbard Archipelago, Norway
Northern fulmar (Fulmarus glacialis glacialis) taking flight in the Svalbard Archipelago, Norway
Adult white-beaked dolphin (Lagenorhynchus albirostris) surfacing in the Svalbard Archipelago, Norway
Adult white-beaked dolphin (Lagenorhynchus albirostris) surfacing in the Svalbard Archipelago, Norway
Adult glaucous gull (Larus hyperboreus) near fin whale carcass in the Svalbard Archipelago, Norway
Adult black-legged kittiwakes (Rissa tridactyla) on ice in the Svalbard Archipelago, Barents Sea, Norway
An adult ivory gull (Pagophila eburnea) on ice near Monaco Glacier on the north side of SpitsBergen, Vestland, Norway
Adult red phalarope (Phalaropus fulicarius) in the Svalbard Archipelago, Norway
Adult arctic tern (Sterna paradisaea) male bringing female a fish, Spitsbergen Island in the Svalbard Archipelago, Norway
Young male polar bear (Ursus maritimus), feeding on a fin whale carcass in Holmabukta in the Svalbard Archipelago, Norway
Tricolored Heron (Louisiana Heron), a small species of heron, found in the Americas, Bermuda
Adult razorbills (Alca torda), along the Atlantic coast of Iceland
Adult humpback whale (Megaptera novaeangliae), flukes-up dive at Siglufjorour, Iceland
Adult humpback whale (Megaptera novaeangliae), breaching in the fjord of Isfjardardjup, Iceland
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