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Close encounters with super suckers

Appeared in DIVER November 2009

The extraordinary giant Pacific octopus exhibits an amazing repertoire of behaviours, many of which defy simple explanations. In this extract from their new book Super Suckers, US divers James A Cosgrove and Neil McDaniel share their personal experiences, and those of a number of other divers

A giant Pacific octopus gathers up its arms just before pumping a powerful jet of water from its funnel to start swimming.
A giant Pacific octopus gathers up its arms just before pumping a powerful jet of water from its funnel to start swimming. Photo: Neil McDaniel
  • Mating giant Pacific octopuses are rarely observed, let alone photographed, but here a breeding pair are seen, the male on the left enveloping the larger female.
    Mating giant Pacific octopuses are rarely observed, let alone photographed, but here a breeding pair are seen, the male on the left enveloping the larger female. Photo: Fred Bavendam
  • A teeny-weeny green bikini is not really suitable attire for an enounter with a giant octopus in bone-chilling water
    A teeny-weeny green bikini is not really suitable attire for an enounter with a giant octopus in bone-chilling water - see Ten Frigid Minutes Photo: Jim Willoughby
  • An encounter with a giant Pacific octopus is always a thrill.
    An encounter with a giant Pacific octopus is always a thrill. Photo: Brandon Cole
  • The giant Pacific octopus has two rows of suckers along each arm.
    The giant Pacific octopus has two rows of suckers along each arm. A single sucker can support almost 16 kilograms! Photo: Neil McDaniel
  • James Cosgrove
    James Cosgrove
  • Neil McDaniel
    Neil McDaniel
  • SUPER SUCKERS: The Giant Pacific Octopus and Other Cephalopods of the Pacific Coast
    SUPER SUCKERS: The Giant Pacific Octopus and Other Cephalopods of the Pacific Coast
  • Click on any thumbnail photo to enlarge it and use the slideshow
    Click on any thumbnail photo to enlarge it and use the slideshow