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

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) portrait, covered in sand. Endangered. Seymour Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) looking out to sea on sandy beach. Endangered. Espanola Island, Galapagos, Ecuador, June.

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

Ole Jorgen Liodden / Galapagos Sea Lion (Zalophus wolllebaeki) under the surface. Galapagos

Pete Oxford / Galapagos sealion (Zalophus wollebaeki) resting on rocks, Floreana Island, Galapagos

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 sea lion (Zalophus wollebaeki) & M/V Santa Cruz, Espaola / Hood Is, Galapagos 2006

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)

Kevin Schafer / Galapagos Sea Lion (Zalophus wollebaeki) mother and pup nuzzling, Galapagos Islands, Ecuador

Kevin Schafer / Galapagos Sea Lion (Zalophus wollebaeki) begging at fish market, Puerto Ayora, Santa Cruz Island, Galapagos Islands, Ecuador

Kevin Schafer / Galapagos Sea Lion (Zalophus wollebaeki) begging at fish market, Puerto Ayora, Santa Cruz Island, Galapagos Islands, Ecuador

Kevin Schafer / Galapagos Sea Lion (Zalophus wollebaeki) pup nuzzling mother, Santiago Island, Galapagos Islands, Ecuador

Mike Wilkes / Galapagos Sealions (Zalophus wollebaeki) resting on beach as people walk among them. Gardner Bay, Galapagos Islands.

Mike Wilkes / Galapagos Sea Lion (Zallophus wollebaeki) resting on public bench. Santa Cruz Island, Galapagos.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) baby about to feed from mother's nipple. Espanola Island, Galapagos, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) baby on coastal volcanic rock. James Bay, Galapagos, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) baby on coastal volcanic rock. James Bay, Galapagos, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) navel, close up. Fernandina Island, Galapagos, May.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) baby sleeping. Fernandina Island, Galapagos, Ecuador, May.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) in coastal shallow water. Fernandina Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) baby sleeping next to mother on coastal volcanic rocks. Santiago Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) on sand beach. Endangered. Seymour Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) mother and pup resting on sand beach. Endangered. Seymour Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) running across sand. Endangered. Seymour Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) on sandy beach. Endangered. Seymour Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) on sandy beach. Endangered. Seymour Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) adult and young in shallow surf. Endangered. Galapagos Islands, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) walking through shallow surf. Endangered. Galapagos Islands, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) mother and pup resting on sand. Endangered. Seymour Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) resting on sand. Endangered. Seymour Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) resting, covered in sand. Endangered. Seymour Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) scratching nose. Endangered. Seymour Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lions (Zalophus wollebaeki) resting on beach. Endangered. Galapagos Islands, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) colony resting on beach. Endangered. Galapagos Islands, Ecuador, June.

Tui De Roy / Galapagos sea lions (Zalophus wollebaeki) interacting on beach. Endangered. Galapagos Islands, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) in coastal surf. Endangered. Galapagos Islands, Ecuador, June.

Tui De Roy / Galapagos sea lions (Zalophus wollebaeki) basking on sand beach. Endangered. Espanola Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lions (Zalophus wollebaeki) fighting in shallow water. Endangered. Espanola Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) mother and pup. Endangered. Seymour Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lions (Zalophus wollebaeki) playing in shallow water. Endangered. Espanola Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lions (Zalophus wollebaeki) resting on beach. Endangered. Espanola Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) portraits on beach. Endangered. Espanola Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) mother and pup on beach. Endangered. Espanola Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) silhouetted on beach. Endangered. Espanola Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) mother and pup in shallow water. Endangered. Espanola Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) on beach. Endangered. Seymour Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) leaning against log on sandy beach. Endangered. Seymour Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lions (Zalophus wollebaeki) interacting on beach. Endangered. Seymour Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) pup. Endangered. Seymour Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) in unusual posture on beach. Endangered. Seymour Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lions (Zalophus wollebaeki) looking at each other, one over its very flexible back, on beach. Endangered. Seymour Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) on beach. Endangered. Seymour Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lions (Zalophus wollebaeki) resting on beach sand. Endangered. Espanola Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lions (Zalophus wollebaeki) reating on sandy beach. Endangered. Espanola Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lions (Zalophus wollebaeki) basking on sand. Endangered. Espanola Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) on beach. Endangered. Espanola Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) on volcanic rock. Endangered. Floreana Island, Galapagos, Ecuador, July.

Tui De Roy / Galapagos sea lions (Zalophus wollebaeki) on volcanic rocks, disputing territory. Endangered. Galapagos Islands, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) mother and pup resting on volcanic beach. Endangered. San Cristobal Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lions (Zalophus wollebaeki) resting on volcanic beach. Endangered. San Cristobal Island, Galapagos, Ecuador, June.