Alex Mustard / Harbour seal (Phoca vitulina) in the kelp forest (Macrocystis pyrifera). Santa Barbara Island, Channel Islands. Los Angeles, California, United States of America. North East Pacific Ocean.

Alex Mustard / California sea lion (Zalophus californianus) resting in the canopy of a forest of giant kelp (Macrocystis pyrifera). Santa Barbara Island, Channel Islands. Los Angeles, California, United States of Am...

Alex Mustard / Young California sea lion (Zalophus californianus) playing in the canopy of a forest of Giant kelp (Macrocystis pyrifera). Santa Barbara Island, Channel Islands. California, USA. North East Pacific Oc...

Kevin Schafer / Common Dolphin (Delphinus delphis) pod, Santa Barbara Channel, Channel Islands National Marine Sanctuary, California

Flip Nicklin / Blue Whale (Balaenoptera musculus) fatally injured in collision with ship and subsequently found by research vessel, Santa Barbara Channel, California

Flip Nicklin / Blue Whale (Balaenoptera musculus) surfacing, Santa Barbara Channel, California

Flip Nicklin / Blue Whale (Balaenoptera musculus) surfacing, Santa Barbara Channel, California

Flip Nicklin / Blue Whale (Balaenoptera musculus) mother and calf, Santa Barbara Channel, California

Flip Nicklin / Blue Whale (Balaenoptera musculus) mother and calf, Santa Barbara Channel, California

Flip Nicklin / Blue Whale (Balaenoptera musculus) aerial view of group, Santa Barbara Channel, California

Alex Mustard / Group of young California sea lions (Zalophus californianus) playing in the sun in the early morning. Santa Barbara Island, Channel Islands. Los Angeles, California, USA. North East Pacific Ocean.

Alex Mustard / Garibaldi (Hypsypops rubicundus) juvenile, portrait. Santa Barbara Island, Channel Islands. Los Angeles, California, United States of America. North East Pacific Ocean.

Alex Mustard / View upwards through a giant kelp forest (Macrocystis pyrifera). Santa Barbara Island, the Channel Islands, California, United States of America. East Pacific Ocean

Alex Mustard / Detail of the gas bladders and fronds of Giant kelp (Macrocystis pyrifera) plant. Santa Barbara Island, the Channel Islands, California, United States of America. East Pacific Ocean

Alex Mustard / Detail of the gas bladders and fronds of Giant kelp (Macrocystis pyrifera) plant. Santa Barbara Island, the Channel Islands, California, United States of America. East Pacific Ocean

Alex Mustard / Blacksmiths (Chromis punctipinnis) school swam through a giant kelp (Macrocystis pyrifera) forest, Santa Barbara Island, Channel Islands. Los Angeles, California, USA, North East Pacific Ocean.

Alex Mustard / Common / harbour seal (Phoca vitulina) swims beneath a kelp forest, Santa Barbara Island, Channel Islands. Los Angeles, California, USA, Pacific Ocean, September

Alex Mustard / A view up through a Giant kelp (Macrocystis pyrifera) forest, Santa Barbara Island, Channel Islands. Los Angeles, California, USA, Pacific Ocean, September

Alex Mustard / Four California spiny lobsters (Panulirus interruptus) shelter beneath a boulder in a kelp forest. Santa Barbara Island, Channel Islands. Los Angeles, California, United States of America. North East...

Alex Mustard / School of Blacksmith fish (Chromis punctipinnis) swim through a giant kelp (Macrocystis pyrifera) forest. Santa Barbara Island, Channel Islands. Los Angeles, California, United States of America. Nort...

Alex Mustard / Red gorgonians (Lophogorgia chilensis) growing beneath a Giant kelp (Macrocystis pyrifera) forest, with female California sheephead (Semicossyphus pulcher). Santa Barbara Island, Channel Islands. Los...

Alex Mustard / California sea lions (Zalophus californianus) group playing in the sun in the early morning. Santa Barbara Island, Channel Islands. Los Angeles, California, United States of America. North East Pacifi...

Alex Mustard / California sea lions (Zalophus californianus) babies playing in the safety of shallow water. Santa Barbara Island, Channel Islands. Los Angeles, California, United States of America. North East Pacif...

Alex Mustard / Harbour seal (Phoca vitulina) investigating the leg of the photographer (Alex Mustard). Santa Barbara Island, Channel Islands. Los Angeles, California, United States of America. North East Pacific Oce...

Alex Mustard / Air filled bladders of Giant kelp (Macrocystis pyrifera). Santa Barbara Island, Channel Islands. Los Angeles, California, United States of America. North East Pacific Ocean.

Alex Mustard / Red gorgonian (Lophogorgia chilensis) growing beneath a forest of giant kelp (Macrocystis pyrifera), with female California sheephead fish (Semicossyphus pulcher). Santa Barbara Island, Channel Island...

Alex Mustard / Pacific angelshark (Squatina californica) camouflaged in the sand waiting to ambush prey. Santa Barbara Island, Channel Islands. California, USA. North East Pacific Ocean. September.

Alex Mustard / Harbor seal (Phoca vitulina) swims through a forest of Giant kelp (Macrocystis pyrifera). Santa Barbara Island, Channel Islands. California, USA. North East Pacific Ocean.

Alex Mustard / Red gorgonian (Lophogorgia chilensis) growing beneath a forest of Giant kelp (Macrocystis pyrifera). Santa Barbara Island, Channel Islands. California, USA. North East Pacific Ocean.

Alex Mustard / Harbor seal (Phoca vitulina) investigating a diver's fin Santa Barbara Island, Channel Islands. California, USA. North East Pacific Ocean. Model released.

Kevin Schafer / Common Dolphin (Delphinus delphis) pair surfacing near Santa Barbara Channel, Channel Islands, California

Kirkendall-Spring / Commercial tour boat heading out into the Santa Barbara Channel after departing from East Anacapa Island, Channel Islands National Park, California, USA, April 2011.

Kirkendall-Spring / Commercial tour boat heading out into the Santa Barbara Channel after departing from East Anacapa Island, Channel Islands National Park, California, USA, April 2011.

Richard Herrmann / Brittlestar (Ophiothrix sp) group on seastar, Santa Barbara Island, Channel Islands, California

Flip Nicklin / Blue Whale (Balaenoptera musculus) pair gulp feeding, Santa Barbara Channel, California

Flip Nicklin / Blue Whale (Balaenoptera musculus) gulp feeding, Santa Barbara Channel, California

Flip Nicklin / Blue Whale (Balaenoptera musculus) surfacing with a splash, Santa Barbara Channel, California

Flip Nicklin / Blue Whale (Balaenoptera musculus) pair swimming, Santa Barbara Channel, California

ZSSD / Island Night Lizard (Xantusia riversiana), native to San Nicolas, Santa Barbara and San Clemente Islands of Channel Islands National Park, California

Flip Nicklin / Blue Whale (Balaenoptera musculus) group, Santa Barbara Channel, California

Richard Herrmann / California Sea Lion (Zalophus californianus) in kelp forest, Santa Barbara Island, Channel Islands, California

Kevin Schafer / Common Dolphin (Delphinus delphis) pod, Santa Barbara Channel, Channel Islands National Marine Sanctuary, California

Kevin Schafer / Risso's Dolphin (Grampus griseus) surfacing, Santa Barbara Channel, Channel Islands National Marine Sanctuary, California

Flip Nicklin / Blue Whale (Balaenoptera musculus), white morph surfacing, Santa Barbara Channel, California

Flip Nicklin / Blue Whale (Balaenoptera musculus) pod surfacing, endangered, Santa Barbara Channel, California

Flip Nicklin / Blue Whale (Balaenoptera musculus) pod surfacing, endangered, Santa Barbara Channel, California

Flip Nicklin / Blue Whale (Balaenoptera musculus) pod surfacing, endangered, Santa Barbara Channel, California

Flip Nicklin / Blue Whale (Balaenoptera musculus) satellelite-tagged as part of Bruce Mate's research, Santa Barbara Channel, California

Larry Minden / Drilling platform and supply boat, Santa Barbara Channel, California

Richard Herrmann / Salp (Cyclosalpa bakeri), Santa Barbara Island, Channel Islands National Park, California

Alex Mustard / Orange Garibaldi damselfish (Hypsypops rubicundus) in a giant kelp (Macrocystis pyrifera) forest. Santa Barbara Island, Channel Islands. Los Angeles, California, United States of America. North East P...

Alex Mustard / Air-filled bladders of Giant kelp (Macrocystis pyrifera). Santa Barbara Island, Channel Islands. Los Angeles, California, United States of America. North East Pacific Ocean.

Alex Mustard / Air-filled bladders of Giant kelp (Macrocystis pyrifera) help a new plant reach up towards the surface. Santa Barbara Island, Channel Islands. Los Angeles, California, United States of America. North...

Alex Mustard / Orange garibaldi damselfish (Hypsypops rubicundus) in a giant kelp (Macrocystis pyrifera) forest. Santa Barbara Island, Channel Islands. Los Angeles, California, United States of America. North East P...

Alex Mustard / Giant kelp (Macrocystis pyrifera) forest. Santa Barbara Island, Channel Islands. Los Angeles, California, United States of America. North East Pacific Ocean.

Alex Mustard / Red gorgonian (Lophogorgia chilensis) grows beneath a forest of Giant kelp (Macrocystis pyrifera), with kelp bass (Paralabrax clathratus). Santa Barbara Island, Channel Islands. Los Angeles, Californi...