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

David Fleetham / Giant kelp (Macrocystis pyrifera) frond showing pneumatocysts, Catalina Island, Channel Islands National Marine Sanctuary, East Pacific Ocean, California.

Doug Perrine / Humpback whales (Megaptera novaeangliae) a calf following its mother, accompanied by Leatherback or Doublespotted queenfish, (Scomberoides lysan) which often associate with Humpback whales, probably t...

Doug Perrine / Humpback whale (Megaptera novaeangliae) female with calf behind, A'u A'u Channel, off West Maui, Hawaii, Hawaii Humpback Whale National Marine Sanctuary, USA.

Kevin Schafer / Kelp beds, Scorpion Harbor, Santa Cruz Island, Channel Islands National Marine Sanctuary, California

Kevin Schafer / Tidepool, Cuyler Harbor, San Miguel Island, Channel Islands National Marine Sanctuary, California

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

Suzi Eszterhas / California Sea Lion (Zalophus californianus) rookery at Point Bennet on San Miguel Island, Channel Islands National Park, California

Suzi Eszterhas / California Sea Lion (Zalophus californianus) rookery at Point Bennet on San Miguel Island, Channel Islands National Park, California

Suzi Eszterhas / California Sea Lion (Zalophus californianus) female giving birth, San Miguel Island, Channel Islands National Park, California

Suzi Eszterhas / California Sea Lion (Zalophus californianus) researchers studying sea lions, Channel Islands National Park, San Miguel, California

Suzi Eszterhas / California Sea Lion (Zalophus californianus) mother and young pup, San Miguel Island, Channel Islands National Park, California