Oceans.

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A Steller sea lion plays with a diver’s snorkel.
Photographer: Paul NIcklen

17 hours ago•24 notes

A sea lion descends in a beam of light.
Photographer: Ben Horton

17 hours ago•48 notes

California Sea Lion (Zalophus californianus) with mouth open in threat display blowing bubbles, North America
Photographer: Konrad Wothe

17 hours ago•76 notes

California Sea Lion (Zalophus californianus) swimming underwater with mouth open in threat display, California
Photographer: Norbert Wu

17 hours ago•17 notes

California Sea Lion (Zalophus californianus) playing in shallow water, Channel Islands, California
Photographer: Norbert Wu

17 hours ago•18 notes

Galapagos Sea Lion (Zalophus wollebaeki) three pups playing underwater, Plazas Island, Galapagos Islands, Ecuador
Photographer: TUI DE ROY

17 hours ago•14 notes

A tiger shark swims over photographers as two more sharks swim nearby.
Photographer: Jim Abernethy

21 hours ago•157 notes

Photographer: Tomas Kotouc

21 hours ago•111 notes

A whitetip reef shark and assorted reef fish at Shark Reef off Beqa Island.
Photographer: Mattias Klum

21 hours ago•41 notes

A diver photographs Caribbean reef sharks (Carcharhinus perezi).
Photographer: Jad Davenport

21 hours ago•40 notes

A great hammerhead shark, Sphyrna mokarran, near the ocean’s surface.
Photographer: Jim Abernethy

21 hours ago•75 notes

A blue shark with parasitic copepod.
Photographer: Brian J. Skerry

21 hours ago•38 notes