David Fleetham / Galapagos Sea Lion (Zalophus californianus wollebacki) framed by a school of Black Striped Salema (Xenocys jessiae). Santa Cruz Island, Galapagos Islands, Equador.

Pete Oxford / Galapagos Sea Lion (Zalophus wollebaeki) group resting on beach, Gardner Bay, Hood Island, Galapagos Islands, Ecuador

Pete Oxford / Galapagos Sea Lion (Zalophus wollebaeki) pair on beach, Gardner Bay, Hood Island, Galapagos Islands, Ecuador

Pete Oxford / Galapagos Sea Lion (Zalophus wollebaeki) group sleeping on beach, Gardner Bay, Hood Island, Galapagos Islands, Ecuador

Pete Oxford / Galapagos Sea Lion (Zalophus wollebaeki) mother and pup, Rabida Island, Galapagos Islands, Ecuador

Pete Oxford / Galapagos Sea Lion (Zalophus wollebaeki) mother nuzzling pup, Rabida Island, Galapagos Islands, Ecuador

Pete Oxford / Galapagos Sea Lion (Zalophus wollebaeki) mother nuzzling pup, Rabida Island, Galapagos Islands, Ecuador

Pete Oxford / Galapagos Sea Lion (Zalophus wollebaeki) mother nuzzling pup, Rabida Island, Galapagos Islands, Ecuador

Pete Oxford / Galapagos Sea Lion (Zalophus wollebaeki) mother nuzzling pup, Rabida Island, Galapagos Islands, Ecuador

Pete Oxford / Galapagos Sea Lion (Zalophus wollebaeki) pup and tourist, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) surfing wave, Mosquera Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki), Punta Vicente Roca, Isabela Island, Galapagos Islands, Ecuador

D. Parer & E. Parer-Cook / Galapagos Sea Lion (Zalophus wollebaeki) group swimming underwater, Galapagos Islands, Ecuador

Kevin Schafer / Galapagos Sea Lion (Zalophus wollebaeki) pups playing, Espanola Island, Galapagos Islands, Ecuador

Todd Mintz / Galapagos sealion underwater (Zalophus californianus wollebaeki) Galapagos Islands, Pacific Ocean, November

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) female and pup nuzzling, Galapagos Islands, Ecuador

Andy Rouse / Galapagos sealion (Zalophus californianus wollebaeki) swimming underwater, upside down, Galapagos

Tim Laman / Galapagos sea lion (Zalophus californianus wollebaeki) bull in the water. Champion Islet off Floreana (Charles) Island, Galapagos Islands.

Patrick Morris / Galapagos sealion {Zalophus californianus wollebake} Santa Fe Is, Galapagos

Pete Oxford / Galapagos sealions (Zalophus californianus wollebaeki) Mother and pup, Espaola / Hood Is, Galapagos

Pete Oxford / Galapagos sealions (Zalophus californianus wollebaeki) playing in shallow water, Gardner Bay, Española / Hood Is, Galapagos

Pete Oxford / Galapagos sealion (Zalophus californianus wollebaeki) sunning on rock, Cerro Brujo, San Cristobal Is, Galapagos

Pete Oxford / Galapagos sealion (Zalophus californianus wollebaeki) on beach Gardner Bay, Española / Hood Is, Galapagos America

Pete Oxford / Galapagos sealion (Zalophus californianus wollebaeki) swimming / diving underwater, Isabela Is, Galapagos

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) females socializing, Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador

Hiroya Minakuchi / Galapagos Sea Lion (Zalophus wollebaeki) silhouetted by surface sunlight, Galapagos Islands, Ecuador

Konrad Wothe / Galapagos Sea Lion (Zalophus wollebaeki) on rock with ocean waves in background, Galapagos Islands, Ecuador

Chris Newbert / Galapagos Sea Lion (Zalophus wollebaeki) playing with schooling Black-striped Salema (Xenocys jessiae), 30 feet deep, Galapagos Islands, Ecuador

Chris Newbert / Galapagos Sea Lion (Zalophus wollebaeki) several youngsters playing in cave, Galapagos Islands, Ecuador

Chris Newbert / Galapagos Sea Lion (Zalophus wollebaeki) underwater, 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

Michio Hoshino / Galapagos Sea Lion (Zalophus wollebaeki) group basking on beach, Galapagos Islands, Ecuador

Michio Hoshino / Galapagos Sea Lion (Zalophus wollebaeki) pair nuzzling, Galapagos Islands, Ecuador

Michio Hoshino / Galapagos Sea Lion (Zalophus wollebaeki) pair resting on beach, Galapagos Islands, Ecuador

Michio Hoshino / Galapagos Sea Lion (Zalophus wollebaeki) trio resting on a beach, Galapagos Islands, Ecuador

Tui De Roy / Greater Flamingo (Phoenicopterus ruber) group and Galapagos Sea Lion (Zalophus wollebaeki) sharing Salt Pond, Rabida Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) pup cavorting in undersea cave, Seymour Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) two playful pups covered in sand, Mosquera Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) checking out tourist, Mosquera Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) group photographed by tourists, Gardner Bay, Hood Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) newborn pup nursing, Cape Douglas, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) pup searching for mother among hostile cows, Punta Espinoza, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) pups, Mosquera Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) pair sunning in tide pool, Punta Espinoza, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) cow cooling off, Punta Espinoza, Fernandina Island, Galapagos Islands, Ecuador

Mitsuaki Iwago / Galapagos Sea Lion (Zalophus wollebaeki) group playing underwater, Galapagos Islands, Ecuador

Mitsuaki Iwago / Galapagos Sea Lion (Zalophus wollebaeki) group playing underwater, Galapagos Islands, Ecuador

Larry Minden / Galapagos Sea Lion (Zalophus wollebaeki) sunning, Galapagos Islands, Ecuador

Georgette Douwma / Galapagos sealion underwater (Zalophus californianus wollebacki)

Pete Oxford / Galapagos sealion (Zalophua californianus). Galapagos Islands, Ecuador

Pete Oxford / Galapagos Sealion {Zalophus californianus wollebake} bull swimming, Galapagos Islands, Espanola Island, Ecuador

Jeff Rotman / Bull Galapagos sealion portrait (Zalophus californianus)

Martin van Lokven / Galapagos Sea Lion (Zalophus wollebaeki) group sleeping on beach, Galapagos Islands, Ecuador

David Fleetham / Galapagos sea lions (Zalophus californianus wollebacki) and Pelicans (Pelecanus occidentalis) lining up at fish market on island of Santa Cruz, Galapagos, Ecuador.

David Fleetham / Galapagos sea lions (Zalophus californianus wollebacki) and Pelicans (Pelecanus occidentalis) lining up at fish market on island of Santa Cruz, Galapagos, Ecuador.

David Fleetham / Galapagos sea lion, (Zalophus californianus wollebacki) lining up at fish market on the island of Santa Cruz, Galapagos Archipelago, Ecuador.

David Fleetham / Galapagos sea lion (Zalophus californianus wollebacki) with mangroves behind. Santa Cruz Island, Galapagos Archipelago, Ecuador.

Tui De Roy / Marine Iguana (Amblyrhynchus cristatus) grazing with Galapagos Sea Lion (Zalophus wollebaeki) nearby, Cape Hammond, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) pups play-fighting, Sombrero Chino Island, Santiago Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) pups play-fighting, Sombrero Chino Island, Santiago Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) group on beach, Gardner Bay, Espanola Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) mother bonding with newborn pup, Punta Suarez, Espanola Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) juveniles greeting, Santa Fe Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) pair facing off, Santa Fe Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) pair facing off, Santa Fe Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) pair greeting, Santa Fe Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) swimming in mangroves, Elizabeth Bay, Isabela Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) trio playing in water, Santa Fe Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) group on beach, Gardner Bay, Espanola Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) group on beach, Gardner Bay, Espanola Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) group on beach, Gardner Bay, Espanola Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) group on beach, Gardner Bay, Espanola Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) group on beach, Gardner Bay, Espanola Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) swimmming, Santa Fe Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) trio in water, Champion Islet, Floreana Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) group in water, Champion Islet, Floreana Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) pair greeting, Cape Douglas, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) swallowing Blue-barred Parrotfish (Scarus ghobban) prey, Tagus Cove, Isabela Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) surfing wave, Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) surfing wave, Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) mother and pup, Cape Douglas, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) mother nuzzling pup, Cape Douglas, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) trio basking in cove, Genovesa Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) trio basking in cove, Genovesa Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) trio basking in cove, Genovesa Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) trio in cove, Genovesa Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) mother nuzzling pup, Cape Douglas, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) mother and pup, Cape Douglas, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) mother nuzzling pup, Cape Douglas, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) pair squabbling on beach, Santa Fe Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) group on beach, Santa Fe Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) group sleeping on beach, Santa Fe Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) swimming by aerial roots, Elizabeth Bay, Isabela Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) pup stretching, Mosquera Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) pup, Mosquera Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) killing Yellowfin Tuna (Thunnus albacares) prey, after it was herded into shallow water, Punta Albemarle, Isabela Island, Galapagos Islands, Ecuador