Shane Gross / Caribbean reef octopus (Octopus briareus) hunting in a land locked alkaline lagoon, The Bahamas.

Shane Gross / Caribbean reef octopus (Octopus briareus) hunting in a land locked alakaline lagoon in The Bahamas.

Alex Mustard / A Caribbean reef octopus (Octopus briareus) swimming through spawning Sea rods (Pseudoplexaura) at night, East End, Grand Cayman, Cayman Islands, British West Indies, Caribbean Sea.

David Hall / Caribbean reef octopus {Octopus briareus}, Dominica, West Indies.

Jeff Rotman / Caribbean reef octopus portrait {Octopus briareus} Grand Cayman Is, Caribbean Sea

Jeff Rotman / Caribbean reef octopus swimming {Octopus briareus} Grand Cayman Is, Caribbean Sea

Jeff Rotman / Caribbean reef octopus portrait {Octopus briareus} Grand Cayman Is, Caribbean Sea

Jeff Rotman / Caribbean reef octopus portrait {Octopus briareus} Grand Cayman Is, Caribbean Sea

Jeff Rotman / Octopus {Octopus briareus} camouflaged on coral reef, Red Sea.

Jeff Rotman / Caribbean reef octopus defense posture {Octopus briareus} Bahamas, Caribbean - close-up of tentacles and suckers

Shane Gross / Caribbean reef octopus (Octopus briareus) moving over Mermaid's wine glass (Acetabularia acetabulum) on seabed, hunting at night, Seahorse National Park, Bahamas, Caribbean Sea.

Shane Gross / Caribbean reef octopus (Octopus briareus) hunting on seabed at night, Seahorse National Park, Bahamas, Caribbean Sea.