In 40 years of deep-sea dives, they've seen this octopus just four times. Researchers from MBARI have encountered a creature rarely seen in the wild: the seven-arm octopus, Haliphron atlanticus. Spotted at a depth of 2,300 feet (700 meters) in Monterey Bay, the male octopus was about the size of a football — and it was clutching a crimson helmet jelly in its arms. This was only the fourth time Haliphron atlanticus has ever been recorded by MBARI in nearly four decades of deep-sea exploration. De

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