Kevin Schafer / Galapagos Sea Lion (Zalophus wollebaeki) pups playing, Espanola Island, Galapagos Islands, Ecuador
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Tui De Roy / Marine iguana (Amblyrhynchus cristatus) males migrating to breeding areas at the onset of warm season. Galapagos Islands, Ecuador, December.
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Tui De Roy / Marine iguanas (Amblyrhynchus cristatus) sky-pointing position to keep cool in sun. Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador, June.
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Tui De Roy / Hood island giant tortoise (Chelonoidis nigra hoodensis) used for breeding program since 1960s, Tortoise Breeding Centre, Puerto Ayora, Santa Cruz Island, Galapagos Islands, Ecuador, Critically endang...
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Tui De Roy / Volcan Alcedo giant tortoises (Chelonoidis nigra vandenburghi) wallowing in rain pools on caldera floor, possibly for thermoregulation or detering parasites, with sulphur fumaroles in background, Alce...
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Tui De Roy / Short-eared owl (Asio flameus galapagoensis) looking between branches, portrait, Galapagos islands
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Tui De Roy / Red-billed tropicbird (Phaethon aethereus) in flight over water. Galapagos Islands, Ecuador, May.
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Tui De Roy / Red-billed tropicbird (Phaethon aethereus) in flight. Galapagos Islands, Ecuador.
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Tui De Roy / Yellow-crowned night heron (Nyctanassa / Nyctanassa violacea) portrait. Galapagos Islands, Ecuador, June.
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Tui De Roy / Marine iguana (Amblyrhynchus cristatus) in profile against dark background. Galapagos Islands, Ecuador, December.
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Tui De Roy / Marine iguana (Amblyrhynchus cristatus) in cloud of flies. Galapagos Islands, Ecuador, June.
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Tui De Roy / Marine iguana (Amblyrhynchus cristatus) emerging from sea onto beach, with Sally lightfoot crabs (Grasopus graspus) and Galapagos Fur Seal in background. Galapagos Islands, Ecuador, June.
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Tui De Roy / Flightless Cormorant (Nannopterum / Phalacrocorax harrisi) with nesting material. Banks Bay, Isabela Island, Galapagos Islands, Ecuador, December.
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Tui De Roy / Galapagos fur seal (Arctocephalus galapagoensis) large territorial bull on volcanic rocks. South Coast Cerro Azul (Cinco Cerros), Isabela, Galapagos Islands, Ecuador, June.
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Tui De Roy / Flightless Cormorant (Nannopterum / Phalacrocorax harrisi) with chick at nest, made from dead starfish. Banks Bay, Isabela Island, Galapagos Islands, Ecuador, December.
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Tui De Roy / Cactus finch (Geospiza scandens) feeding on cactus flower nectar and pollen. Espanola, Galapagos Islands, November.
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Mark Carwardine / Marine Iguanas (Amblyrhynchus cristatus), the only marine lizard, basking on volcanic rocks. Galapagos Islands, Ecuador, South America. Book plate from Mark Carwardine's Ultimate Wildlife Experiences.
Ole Jorgen Liodden / Galapagos Sea Lion (Zalophus wolllebaeki) under the surface. Galapagos
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Ole Jorgen Liodden / Galapagos Ghost Crab (Ocypode gaudichaudii) fighting on the beach. Galapagos
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Ole Jorgen Liodden / Galapagos Land Iguana (Conolophus subcristatus) silhouetted against dawn light. Galapagos
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Ole Jorgen Liodden / Magnificent Frigatebird (Fregata magnificens)displaying in flight, red pouch inflated. Galapagos
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Pete Oxford / Great blue heron (Ardea herodias) portrait, Puerto Ayora, Santa Cruz Island, Galapagos Islands
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Pete Oxford / Galapagos garden eels (Heteroconger / Taenioconger klausewitzi) on seabed, Galapagos Islands
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Pete Oxford / Finch specimens at the Charles Darwin Research Station, Puerto Ayora, Santa Cruz Island, Galapagos Islands, L to R Top: Large Ground Finch (Geospiza magnirostris), Woodpecker Finch (Cactospiza pallidu...
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Pete Oxford / Finch specimens (Emberizidae) at the Charles Darwin Research Station, Puerto Ayora, Santa Cruz Island, Galapagos Islands
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Jeff Rotman / Bat rays (Myliobatis californica) schooling, Redondo Rock, Galapagos Is
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Pete Oxford / Waved albatross (Phoebastria irrorata) in flight with storm clouds, Punto Cevallos, Española (Hood) Island, Galapagos islands, Equador, South America
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Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) female and pup nuzzling, Galapagos Islands, Ecuador
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Tui De Roy / Great Frigatebird (Fregata minor) female guarding chick, Galapagos Islands, Ecuador
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Pete Oxford / Creolefish / Gringo (Paranthias colonus) Central Isles, Galapagos Islands
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Pete Oxford / Rainbow runner (Elegatis bipinnulata) off Wolf Island, Galapagos Islands
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Pete Oxford / Yellow-tailed mullet (Mugil rammelsbergii) feeding on plankton just below the surface, off Wolf Island Galapagos Islands
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Pete Oxford / Finescale triggerfish (Balistes polylepis) off Wolf Island, Galapagos Islands
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Pete Oxford / Diver follows shoal of Steel pompano (Trachinotus stilbe) off Wolf Island, Galapagos Islands, Model released
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Pete Oxford / Measuring bill size of Waved albatross (Phoebastria irrorata) Punta Suarez, Española / Hood Island, Galapagos Islands
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Pete Oxford / Waved albatross (Phoebastria irrorata) pair at nest after change over for incubation, Punta Suarez, Española Island, Galapagos Islands
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Pete Oxford / Waved albatross (Phoebastria irrorata) portrait, Punta Cevallos, Espaola Island, Galapagos Islands
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Pete Oxford / Waved albatross (Phoebastria irrorata) portrait, Punta Cevallos, Española Island, Galapagos Islands
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Pete Oxford / Yellow-tailed sawfish / surgeonfish (Prionurus laticlavius) shoal off Wolf Island, Galapagos Islands
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Pete Oxford / Steel pompano fish (Trachinotus stilbe) cleaning Galapagos green turtle (Chelonia mydas agassizi) off Wolf Island, Galapagos Islands
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Pete Oxford / Yellowtail sawtail / surgeonfish (Prionurus laticlavius) shoal off Wolf Island, Galapagos Islands
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Pete Oxford / Waved albatross (Phoebastria irrorata) with water droplet falling from beak, Punta Cevallos, Española Island, Galapagos Islands
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Pete Oxford / Waved albatross (Phoebastria irrorata) rear view, Punta Cevallos, Espaola Island, Galapagos Islands
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Pete Oxford / Waved albatross (Phoebastria irrorata) portrait, Punta Cevallos, Española Island, Galapagos Islands
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Pete Oxford / Waved albatross (Phoebastria irrorata) portrait, Punta Cevallos, Espaola Island, Galapagos Islands
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Pete Oxford / Galapagos Giant Tortoise (Geochelone elephantophus vandenburghi) near fumaroles, Alcedo Volcano crater floor, Isabela Island, Galapagos Islands
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Pete Oxford / Waved Albatross (Phoebastria irrorata) courtship, Punta Cevallos, Española Island, Galapagos Islands, Critically Endangered
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Pete Oxford / Waved Albatross (Phoebastria irrorata) courtship, Punta Cevallos, Espaola Island, Galapagos Islands, Ecuador, South America. Endemic, Critically endangered
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Pete Oxford / Waved Albatross (Phoebastria irrorata) courtship, Punta Cevallos, Española Island, Galapagos Islands, Ecuador, South America. Endemic, Critically endangered
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Pete Oxford / Geothermal activity as evidenced by bubbles eminating from the seabed, Roca Redonda and eroded volcano in mid ocean north of Isabela Island, Galapagos Islands, Ecuador, South America
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Pete Oxford / Galapagos Fur Seal (Arctocephalus galapagoensis) just below the surface off of Wolf Island, Galapagos Islands, Ecuador, South America
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Pete Oxford / Galapagos Shark (Carcharhinus galapagensis), Wolf Island, Galapagos Islands, Ecuador
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Pete Oxford / Whale Shark (Rhincodon typus) swimming with other tropical fish, note satellite tag to right of dorsal fin, Wolf Island, Galapagos Islands, Ecuador
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Pete Oxford / Galapagos Sulphur Butterfly (Phoebis sennae marcellina) feeding on cactus flower, Alcedo Volcano, Isabella Island, Galapagos Islands, Ecuador
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Pete Oxford / Volcan Alcedo Giant Tortoise (Chelonoidis nigra vandenburghi), Alcedo Volcano crater floor, Isabella Island, Galapagos Islands, Ecuador
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Pete Oxford / Waved Albatross (Phoebastria irrorata), Hood Island, Galapagos Islands, Ecuador
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Tim Laman / Galapagos giant tortoise (Geochelone nigra / Geochelone elephantopus) feeding (captive). Charles Darwin Research Station, Santa Cruz Island, Galapagos Islands.
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Tim Laman / Spines along the back of a marine iguana (Amblyrhynchus cristatus), Puerto Egas, Santiago Island, Galapagos Islands.
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Tim Laman / Espanola (Hood) mockingbird (Nesomimus macdonaldi) standing on a Marine iguana (Amblyrhynchus cristatus), Espanola Island (Hood Island), Galapagos Islands.
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Tim Laman / Galapagos sea lion (Zalophus californianus wollebaeki) bull in the water. Champion Islet off Floreana (Charles) Island, Galapagos Islands.
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Pete Oxford / Green Sea Turtle (Chelonia mydas) swimming, Galapagos Islands, Ecuador
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Pete Oxford / Green Sea Turtle (Chelonia mydas) swimming, Galapagos Islands, Ecuador
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Pete Oxford / Lava from volcano falling into sea, Fernandina island, Galapagos
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Chris Newbert / Scalloped Hammerhead Shark (Sphyrna lewini) school at 60 feet, Galapagos Islands, Ecuador
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Pete Oxford / Bartolome Island a landscape of lava and ash, Galapagos Islands, Ecuador
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Tui De Roy / Blue-footed Booby (Sula nebouxii) pair performing courtship dance, Hood Island, Galapagos Islands, Ecuador
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Tui De Roy / Blue-footed Booby (Sula nebouxii) pair performing courtship dance, Hood Island, Galapagos Islands, Ecuador
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Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) females socializing, Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador
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Tui De Roy / Waved Albatross (Phoebastria irrorata) courtship dance under rainy season clouds, Punta Cevallos, Espanola Island, Galapagos Islands, Ecuador
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Pete Oxford / Giant Tortoise (Geochelone elephantopus) and tourists in the Galapagos Islands
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Mark Jones / Marine Iguana (Amblyrhynchus cristatus) pair resting after morning feeding, vulnerable, Punta Suarez, Hood Island, Galapagos Islands, Ecuador
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Tui De Roy / Marine Iguana (Amblyrhynchus cristatus) breeding male basking with Sally Lightfoot Crab (Grapsus grapsus) scavenging dead skin, Hood Island, Galapagos Islands, Ecuador
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Chris Newbert / Galapagos Shark (Carcharhinus galapagensis) among schooling Black-striped Salema (Xenocys jessiae), Galapagos Islands, Ecuador
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Birgitte Wilms / Golden Cownose Ray (Rhinoptera steindachneri) school, 20 feet deep, Galapagos Islands, Ecuador
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Pete Oxford / Greater flamingo on beach at sunset, Galapagos Islands
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Mark Moffett / Large Ground Finch (Geospiza magnirostris) endemic species, extra large bill for cracking large seeds, largest of Darwin's 13 Finches, Santiago Island, Galapagos Islands, Ecuador
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Mark Moffett / Galapagos Giant Tortoise (Chelonoidis nigra) in Alcedo Volcano, Isabella Island, Galapagos Islands, Ecuador
Chris Newbert / Galapagos Sea Lion (Zalophus wollebaeki) playing in a school of Black-striped Salema (Xenocys jessiae) 20 feet deep, Galapagos Islands, Ecuador
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Tui De Roy / Waved Albatross (Phoebastria irrorata) courtship display sequence, Punta Cevallos, Espanola Island, Galapagos Islands, Ecuador